File: rfc2561.txt

package info (click to toggle)
doc-rfc 20181229-2
  • links: PTS, VCS
  • area: non-free
  • in suites: buster
  • size: 570,944 kB
  • sloc: xml: 285,646; sh: 107; python: 90; perl: 42; makefile: 14
file content (3139 lines) | stat: -rw-r--r-- 113,705 bytes parent folder | download | duplicates (9)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139






Network Working Group                                           K. White
Request for Comments: 2561                                     IBM Corp.
Category: Standards Track                                       R. Moore
                                                               IBM Corp.
                                                              April 1999


                Base Definitions of Managed Objects for
                          TN3270E Using SMIv2

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

Abstract

   This memo defines a Management Information Base (MIB) for configuring
   and managing TN3270E servers.  TN3270E, defined by RFC 2355 [19],
   refers to the enhancements made to the Telnet 3270 (TN3270) terminal
   emulation practices.  Refer to RFC 1041 [18], STD 8, RFC 854 [16],
   and STD 31, RFC 860 [17] for a sample of what is meant by TN3270
   practices.

   The MIB defined by this memo provides generic support for both host
   and gateway TN3270E server implementations.  A TN3270E server
   connects a Telnet client performing 3270 emulation to a target SNA
   host over both a client-side network (client to TN3270E server) and
   an SNA Network (TN3270E server to target SNA host).  The client-side
   network is typically TCP/IP, but it need not be.

   A host TN3270E server refers to an implementation where the TN3270E
   server is collocated with the Systems Network Architecture (SNA)
   System Services Control Point (SSCP) for the dependent Secondary
   Logical Units (SLUs) that the server makes available to its clients
   for connecting into a SNA network.  A gateway TN3270E server resides
   on an SNA node other than an SSCP, either an SNA type 2.0 node, a
   boundary-function-attached type 2.1 node, or an APPN node acting in
   the role of a Dependent LU Requester (DLUR).  Host and gateway
   TN3270E server implementations typically differ greatly as to their
   internal implementation and system definition (SYSDEF) methods.



White & Moore               Standards Track                     [Page 1]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


   It is the intent that the MIB defined herein be extended by
   subsequent memos.  For example, one such extension enables collection
   of TN3270E response time data.

Table of Contents

   1.0  Introduction  . . . . . . . . . . . . . . . . . . . . . . .   2
   2.0  The SNMP Network Management Framework   . . . . . . . . . .   3
   3.0  Structure of the MIB  . . . . . . . . . . . . . . . . . . .   4
   3.1  TN3270E Server Control  . . . . . . . . . . . . . . . . . .   5
     3.1.1  tn3270eSrvrConfTable  . . . . . . . . . . . . . . . . .   5
     3.1.2  tn3270eSrvrPortTable  . . . . . . . . . . . . . . . . .   6
     3.1.3  tn3270eSrvrStatsTable   . . . . . . . . . . . . . . . .   7
   3.2  TN3270E Server Resource Configuration   . . . . . . . . . .   7
   3.3  Resource Name / Client Address Mappings   . . . . . . . . .   8
     3.3.1  tn3270eSnaMapTable  . . . . . . . . . . . . . . . . . .   8
     3.3.2  tn3270eResMapTable  . . . . . . . . . . . . . . . . . .   9
     3.3.3  tn3270eTcpConnTable   . . . . . . . . . . . . . . . . .   9
   3.4  Advisory Spin Lock Usage  . . . . . . . . . . . . . . . . .   9
   3.5  Row Persistence   . . . . . . . . . . . . . . . . . . . . .  10
   3.6  IANA Considerations   . . . . . . . . . . . . . . . . . . .  10
   4.0  Definitions   . . . . . . . . . . . . . . . . . . . . . . .  11
   5.0  Security Considerations   . . . . . . . . . . . . . . . . .  51
   6.0  Intellectual Property   . . . . . . . . . . . . . . . . . .  52
   7.0  Acknowledgments   . . . . . . . . . . . . . . . . . . . . .  53
   8.0  References  . . . . . . . . . . . . . . . . . . . . . . . .  53
   9.0  Authors' Addresses  . . . . . . . . . . . . . . . . . . . .  55
   Full Copyright Statement   . . . . . . . . . . . . . . . . . . .  56

1.0  Introduction

   This document is a product of the TN3270E Working Group.  Its purpose
   is to define a MIB module for support by a TCP/IP implementation for
   configuration and management of TN3270E servers.

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119, reference
   [22].












White & Moore               Standards Track                     [Page 2]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


2.0  The SNMP Network Management Framework

   The SNMP Management Framework presently consists of five major
   components:

   o   An overall architecture, described in RFC 2271 [1].

   o   Mechanisms for describing and naming objects and events for the
       purpose of management.  The first version of this Structure of
       Management Information (SMI) is called SMIv1 and described in STD
       16, RFC 1155 [2], STD 16, RFC 1212 [3] and RFC 1215 [4].  The
       second version, called SMIv2, is described in RFC 1902 [5], RFC
       1903 [6] and RFC 1904 [7].

   o   Message protocols for transferring management information.  The
       first version of the SNMP message protocol is called SNMPv1 and
       described in STD 15, RFC 1157 [8].  A second version of the SNMP
       message protocol, which is not an Internet standards track
       protocol, is called SNMPv2c and described in RFC 1901 [9] and RFC
       1906 [10].  The third version of the message protocol is called
       SNMPv3 and described in RFC 1906 [10], RFC 2272 [11] and RFC 2274
       [12].

   o   Protocol operations for accessing management information.  The
       first set of protocol operations and associated PDU formats is
       described in STD 15, RFC 1157 [8].  A second set of protocol
       operations and associated PDU formats is described in RFC 1905
       [13].

   o   A set of fundamental applications described in RFC 2273 [14] and
       the view-based access control mechanism described in RFC 2275
       [15].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the mechanisms defined in the SMI.

   This memo specifies a MIB module that is compliant to the SMIv2.  A
   MIB conforming to the SMIv1 can be produced through the appropriate
   translations.  The resulting translated MIB must be semantically
   equivalent, except where objects or events are omitted because no
   translation is possible (use of Counter64).  Some machine readable
   information in SMIv2 will be converted into textual descriptions in
   SMIv1 during the translation process.  However, this loss of machine
   readable information is not considered to change the semantics of the
   MIB.





White & Moore               Standards Track                     [Page 3]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


3.0  Structure of the MIB

   The TN3270E-MIB is split into the following components:

   o   TN3270E Server Control
   o   TN3270E Server Resource Configuration
   o   Resource/Client Address Mappings

   There are three additional sections to address:

   o   Advisory Spin Lock Usage
   o   Row Persistence
   o   IANA Considerations

   The TN3270E-MIB is defined primarily for TN3270E servers.  This memo
   does not explicitly address use of the MIB by TN3270 servers that do
   not support the TN3270E protocol.  Even though a significant number
   of the objects in the MIB do apply in the TN3270-only case, the case
   was not addressed, since it is unlikely that a TN3270-only server
   would implement this MIB.

   The SYSAPPL-MIB, reference [24], contains the Utf8String textual
   convention (TC) that the TN3270E-MIB imports.  This TC, which is used
   for some MIB objects containing textual information, enables
   internationalization of text strings, whereas the DisplayString TC
   does not.  The SNMP-FRAMEWORK-MIB, reference [1], contains the
   SnmpAdminString TC that the TN3270E-MIB also imports.  Like the
   Utf8String TC, this TC also enables internationalization of text
   strings; in addition, it provides some guidelines on the length and
   content of the strings.

   It is important to note that implementation of the SYSAPPL-MIB is not
   actually a prerequisite for implementing the TN3270E-MIB.  On the
   other hand, implementation of the TN3270E-MIB does not preclude
   implementing the SYSAPPL-MIB as well.  When both MIBs are
   implemented, the primary index into most of the TN3270E-MIB tables,
   tn3270eSrvrConfIndex, SHOULD equal one of the SYSAPPL-MIB's
   sysApplElmtRunIndex values.  In this case the entry in the
   sysApplElmtRunTable provides additional information on a TN3270E
   server.

   The MIB defined by this memo supports use of both IPv4 and IPv6
   addressing.  Two textual conventions, IANATn3270eAddrType and
   Tn3270eAddress, are defined for this purpose.  IANATn3270eAddress is
   essentially equivalent to the TAddress TC, defined by RFC 1903.  The
   difference between the two is that IANATn3270eAddress allows a zero-
   length octet string, while TAddress doesn't.  It is important that
   IANATn3270eAddress allow for the absence of an address, because some



White & Moore               Standards Track                     [Page 4]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


   objects with this syntax are used as table indexes, and have special
   meanings when they contain zero-length strings.

   The IANATn3270eAddrType textual convention is used rather than the
   TDomain TC (defined by RFC 1903) for identifying the contents of a
   tn3270eTAddress object.  TDomain uses an OID to characterize the
   contents of an associated TAddress object.  IANATn3270eAddrType was
   chosen over TDomain because, with a SYNTAX of Unsigned32 (enumeration
   type), it is much simpler to use as a component in an instance
   identifier.  It was placed in the IANA-administered module to allow
   for the addition of values to cover cases (such as proxy servers) not
   covered by the TN3270E-MIB itself.

3.1  TN3270E Server Control

   This group of objects provides for TN3270E server configuration and
   control.  It consists of three tables:

   o   tn3270eSrvrConfTable
   o   tn3270eSrvrPortTable
   o   tn3270eSrvrStatsTable

   The tn3270eSrvrConfTable is the primary table within the entire
   TN3270E-MIB.  As section 3.1.1 indicates, each TN3270E server is
   represented by an entry in this table, indexed by
   tn3270eSrvrConfIndex.  Most of the other tables defined by the
   TN3270E-MIB have tn3270eSrvrConfIndex as their primary index.
   Entries in these tables MUST NOT exist for a TN3270E server when it
   does not have a tn3270eSrvrConfigEntry.

3.1.1  tn3270eSrvrConfTable

   The tn3270eSrvrConfTable contains a set of objects primarily used for
   configuring and managing TN3270E servers.  As with most of the other
   tables in the TN3270E-MIB, this table is indexed by an unsigned
   integer, tn3270eSrvrConfIndex.  This primary index element enables
   support of multiple TN3270E servers by a single SNMP agent.  Within
   the set of MIB objects returned by one SNMP agent,
   tn3270eSrvrConfIndex values MUST be unique, and need not be
   contiguous.

   The tn3270eSrvrConfInactivityTimer object defines the inactivity
   period for user traffic on TN3270 and TN3270E sessions.








White & Moore               Standards Track                     [Page 5]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


   The four objects:

   o   tn3270eSrvrConfConnectivityChk
   o   tn3270eSrvrConfTmNopInterval
   o   tn3270eSrvrConfTmNopInactTime
   o   tn3270eSrvrConfTmTimeout

   define the parameters for performing the "Telnet Timing Mark Option"
   as defined by RFC 860 [17].  The object
   tn3270eSrvrConfConnectivityChk allows a Management Station to select
   either a NOP command or a TIMING-MARK command.  Sending a NOP command
   results in less overhead then a TIMING-MARK command, since a client
   doesn't send a reply.

   The objects tn3270eSrvrConfAdminStatus and tn3270eSrvrConfOperStatus
   enable remote starting and stopping of a TN3270E server, and report
   the current state of the server.  The object
   tn3270eSrvrConfFunctionsSupported indicates which of the TN3270 and
   TN3270E options a server supports.  The object
   tn3270eSrvrConfSessionTermState defines as a TN3270E server-wide
   option what SHOULD occur when the SNA portion of a TN3270 or TN3270E
   session terminates with respect to the associated TCP connection.
   The object tn3270eSrvrConfSrvrType indicates whether the TN3270E
   server represented by a tn3270eSrvrConfEntry is a host or a gateway
   server.  The object tn3270eSrvrConfContact provides a scratch pad
   area for a TN3270E server administrator to store information for
   later retrieval.  The object tn3270eSrvrConfLastActTime reports the
   DateAndTime when the server was most recently activated.  The special
   value of all '00'Hs indicates that the server has never been active.

   The object tn3270eSrvrConfRowStatus provides the capability to
   perform row creation and deletion operations on this table.

3.1.2  tn3270eSrvrPortTable

   The tn3270eSrvrPortTable represents the local TCP ports associated
   with a TN3270E server.  This information is important because some
   TN3270E server implementations support usage of multiple local ports.
   A tn3270eSrvrPortEntry is indexed by:

   o   tn3270eSrvrConfIndex
   o   tn3270eSrvrConfPort
   o   tn3270eSrvrConfPortAddrType
   o   tn3270eSrvrConfPortAddress

   Certain TN3270E server implementations restrict a local TCP port to a
   particular local IP address, instead of allowing connections for any
   local IP address to occur via the port.  tn3270eSrvrConfPortAddrType



White & Moore               Standards Track                     [Page 6]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


   and tn3270eSrvrConfPortAddress allow this restriction to be
   represented in the MIB.  A TN3270E server that doesn't restrict
   connections over a port to a local IP Address SHALL use the value
   unknown(0) for tn3270eSrvrConfPortAddrType, and a zero-length octet
   string for tn3270eSrvrConfPortAddress.

3.1.3  tn3270eSrvrStatsTable

   The tn3270eSrvrStatsTable defines a series of objects that provide
   general usage statistics for a TN3270E server.  An entry can
   represent the total activity for a server, or it can represent the
   activity occurring at the server on either a port or a port-and-
   local-address basis.

   An implementation of this table MUST use only one of the three levels
   of refinement that the indexing of this table supports for the
   entries associated with a single TN3270E server.

   The objects in this table reporting maximum, in-use, and spare LUs
   for terminals and printers presuppose an implementation where
   terminal resources and printer resources come from disjoint,
   dedicated pools.  An implementation where resources for the two types
   of LUs come from a single shared pool should return the following
   values:

   o   maximum:  maximum size of the shared pool
   o   in-use:   number currently in use as this type of LU
   o   spare:    maximum - (terminal in-use + printer in-use)

3.2  TN3270E Server Resource Configuration

   The following three tables provide for configuration of resources at
   a TN3270E server:

   o   tn3270eClientGroupTable
   o   tn3270eResPoolTable
   o   tn3270eClientResMapTable

   tn3270eClientGroupTable and tn3270eResPoolTable enable
   implementations to define groupings of both client addresses and
   resource pools for mapping client addresses to resources.  The
   tn3270eClientResMapTable provides a mapping from a client group to a
   resource pool.








White & Moore               Standards Track                     [Page 7]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


3.3  Resource Name / Client Address Mappings

   The TN3270E-MIB contains three tables for mapping resource names to
   client addresses, and client addresses to resource names:

   o   tn3270eSnaMapTable
   o   tn3270eResMapTable
   o   tn3270eTcpConnTable

3.3.1  tn3270eSnaMapTable

   The tn3270eSnaMapTable is a read-only table that maps a secondary
   LU's SNA network name to the name by which it is known locally at the
   TN3270E server.  For correlation with data from the SNA network, the
   name of the associated primary LU also appears in a
   tn3270eSnaMapEntry.  An entry in this table is created when the
   Activate LU (ACTLU) request carrying the SNA network name of the SLU
   is received from the SSCP.  The entry is deleted when the SLU is
   deactivated.

   A TN3270E server provides a client with access to an SNA application
   by associating a TCP connection from the client with an SNA secondary
   LU (SLU) at the server.  This SLU in turn has an SNA session with a
   primary LU (PLU) running on an SNA host.  This PLU represents the
   application with which the client is communicating.  The TN3270E-MIB
   includes two tables for mapping back and forth among the SNA name
   identifying the PLU, the SNA name identifying the SLU, and the TCP
   connection with the client.

   In order to understand how these name mappings work, it is necessary
   to understand a subtlety involving the names of the SLUs at the
   TN3270E server:  these names are often different from the names by
   which the SLUs are known in the rest of the SNA network.  In the
   TN3270E-MIB, these two types of SLU names are termed "local names"
   and "SSCP-supplied names"; the latter term indicates that the name by
   which the SLU is known in the SNA network comes to the TN3270E server
   from the SNA System Services Control Point.

   SSCPs don't always send SLU names down to secondary LUs; in some
   cases this capability must be turned on.  In the case of SLUs served
   by a Dependent LU Requester (DLUR), an SSCP always sends SLU names to
   the DLUR.  It is necessary, however, to enable the DLUR's PU/LU
   Network Name Forwarding function, so that it forwards the SLU names
   it receives from the SSCP down to the PUs that it serves.







White & Moore               Standards Track                     [Page 8]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


   For SLUs associated with an SNA type 2.0 node (or with a boundary-
   function-attached type 2.1 node) not served by a DLUR, inclusion of
   SLU names on ACTLU must be enabled explicitly at the SSCP via local
   configuration.

3.3.2  tn3270eResMapTable

   The tn3270eResMapTable is a read-only table that maps a resource name
   to a client's address.  An entry in this table is created when a TCP
   connection is received by a TN3270E server and mapped to a resource.
   The entry is deleted when the resource-to-address association is no
   longer valid.

3.3.3  tn3270eTcpConnTable

   The TCP Connection Table is currently defined by RFC 2012 (Refer to
   reference [20], TCP-MIB Definitions).  It contains the following
   objects:

   o   tcpConnState (INTEGER)
   o   tcpConnLocalAddress (IpAddress)
   o   tcpConnLocalPort (INTEGER)
   o   tcpConnRemAddress (IpAddress)
   o   tcpConnRemPort (INTEGER)

   It is indexed by: tcpConnLocalAddress, tcpConnLocalPort,
   tcpConnRemAddress, and tcpConnRemPort.

   The tn3270eTcpConnTable contains objects for keeping a list of the
   current set of TN3270 and TN3270E sessions at a TN3270E server.  The
   relationship between the tcpConnTable and the Tn3270eTcpConnTable is
   not one-to-one, since the tn3270eTcpConnTable contains information
   pertaining only to TN3270(E) sessions.

   The tn3270eTcpConnTable has a different indexing structure from that
   of the tcpConnTable.  Instead of using IpAddress objects,
   Tn3270eAddress and IANATn3270eAddrType object pairs are used to
   specify client addresses (both local and remote).  This enables
   support of IPv6 addresses.  In addition, the remote address pair
   precedes the local address pair in the index clause, in order to
   enable a GET-NEXT operation using only the remote address pair.

3.4  Advisory Spin Lock Usage

   Within the TN3270E-MIB, tn3270eConfSpinLock is defined as an advisory
   lock that allows cooperating TN3270E-MIB applications to coordinate
   their use of the tn3270eSrvrConfTable, the tn3270eSrvrPortTable, the
   tn3270eClientGroupTable, the tn3270eResPoolTable, and the



White & Moore               Standards Track                     [Page 9]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


   tn3270eClientResMapTable.  When creating a new entry or altering an
   existing entry in any of these tables, an application SHOULD make use
   of tn3270eConfSpinLock to serialize application changes or additions.
   Since this is an advisory lock, its use by management applications
   SHALL NOT be enforced by agents.  Agents MUST, however, implement the
   tn3270eConfSpinLock object.

3.5  Row Persistence

   The following tables enable remote creation of their entries by
   including RowStatus objects:

   o   tn3270eSrvrConfTable
   o   tn3270eSrvrPortTable
   o   tn3270eClientGroupTable
   o   tn3270eResPoolTable
   o   tn3270eClientResMapTable

   An implementation SHOULD NOT retain SNMP-created entries in these
   tables across reIPLs (Initial Program Loads) of the corresponding
   TN3270E server, since management applications need to see consistent
   behavior with respect to the persistence of the table entries that
   they create.

   It is expected that local, implementation-dependent configuration
   information will be used to define the initial and persistent
   configurations for TN3270E server usage.  Thus it is not necessary to
   enable persistence of table entries by adding StorageType (refer to
   RFC 1903 [6]) objects to these tables.

3.6  IANA Considerations

   The tn3270eSrvrFunctionsSupported, tn3270eTcpConnFunctions,
   tn3270eTcpConnClientIdFormat, and tn3270eTcpConnLogInfo objects, as
   well as a number of objects identifying various address types,
   resource types, and device types, use textual conventions imported
   from the IANATn3270eTC-MIB.  The purpose of defining these textual
   conventions in a separate MIB module is to allow additional values to
   be defined without having to issue a new version of this document.
   The Internet Assigned Numbers Authority (IANA) is responsible for the
   assignment of all Internet numbers, including various SNMP-related
   numbers; it will administer the values associated with these textual
   conventions.

   The rules for additions or changes to the IANATn3270eTC-MIB are
   outlined in the DESCRIPTION clause associated with its MODULE-
   IDENTITY statement.




White & Moore               Standards Track                    [Page 10]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


   The current version of the IANATn3270eTC-MIB can be accessed from the
   IANA home page at: "http://www.iana.org/".

4.0  Definitions

  TN3270E-MIB DEFINITIONS ::= BEGIN

  IMPORTS
      MODULE-IDENTITY, OBJECT-TYPE, Unsigned32, TimeTicks,
      IpAddress, Counter32, Gauge32, Counter64
          FROM SNMPv2-SMI
      TEXTUAL-CONVENTION, RowStatus, TestAndIncr, DateAndTime,
      TimeStamp
          FROM SNMPv2-TC
      MODULE-COMPLIANCE, OBJECT-GROUP
          FROM SNMPv2-CONF
      snanauMIB
          FROM SNA-NAU-MIB
      Utf8String
          FROM SYSAPPL-MIB
      SnmpAdminString
          FROM SNMP-FRAMEWORK-MIB
      IANATn3270eAddrType, IANATn3270eAddress,
      IANATn3270eClientType, IANATn3270Functions,
      IANATn3270ResourceType, IANATn3270DeviceType,
      IANATn3270eLogData
          FROM IANATn3270eTC-MIB;

    tn3270eMIB MODULE-IDENTITY
        LAST-UPDATED "9807270000Z" -- July 27, 1998
        ORGANIZATION "TN3270E Working Group"
        CONTACT-INFO
            "Kenneth White (kennethw@vnet.ibm.com)
             IBM Corp. - Dept. BRQA/Bldg. 501/G114
             P.O. Box 12195
             3039 Cornwallis
             RTP, NC 27709-2195
             USA

             Robert Moore (remoore@us.ibm.com)
             IBM Corp. - Dept. BRQA/Bldg. 501/G114
             P.O. Box 12195
             3039 Cornwallis
             RTP, NC 27709-2195
             USA
             +1-919-254-4436"
        DESCRIPTION
            "This module defines a portion of the management



White & Moore               Standards Track                    [Page 11]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


            information base (MIB) for managing TN3270E servers."
        REVISION  "9807270000Z" -- July 27, 1998
        DESCRIPTION
            "RFC nnnn (Proposed Standard)" -- RFC Editor to fill in
        ::= { snanauMIB 8 }

  -- Textual Conventions

  SnaResourceName ::= TEXTUAL-CONVENTION
      STATUS      current
      DESCRIPTION
          "The textual convention for defining an SNA resource
           name. A fully qualified SNA resource name, consisting
           of a 1 to 8 character network identifier (NetId), a
           period ('.'), and a 1 to 8 character resource name
           (ResName).

           The NetId and ResName are constructed from the
           uppercase letters 'A' - 'Z' and the numerics '0' - '9',
           all encoded in ASCII, with the restriction that the
           first character of each must be a letter.  Blanks are
           not allowed.

           Earlier versions of SNA permitted three additional
           characters in NetIds and ResNames:  '#', '@', and '$'.
           While this use of these characters has been retired,
           a Management Station should still accept them for
           backward compatibility.

           Note: This Textual Convention is not subject to
           internationalization, and does not use the character
           encodings used by the Utf8String Textual Convention."
      SYNTAX     OCTET STRING (SIZE(0..17))

  Tn3270eTraceData ::= TEXTUAL-CONVENTION
      STATUS      current
      DESCRIPTION
          "An octet string representing trace data from the
          Telnet half of a TN3270E session, from the SNA half,
          or from both.  The octet string contains a sequence
          of trace elements, with the trace elements in the
          string ordered from earliest to latest.

          Each trace element has the following form:

                  +---+---+----+----------------------+
                  !length !type!data                  !
                  +---+---+----+----------------------+



White & Moore               Standards Track                    [Page 12]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


            where:

            length = two-octet length of the data portion of the
                     trace element, not including the length and
                     type octets

            type   = one-octet code point characterizing the data;
                     defined values are:

                     X'01' telnet PDU from the server to the client
                     X'02' telnet PDU from the client to the server
                     X'03' SNA data from the server to the SNA host
                     X'04' SNA data from the SNA host to the server

            data   = initial part of a PDU.

          It is implementation-dependent where the 'initial part of
          a PDU' starts.  For SNA data, however, the starting point
          SHOULD be the first byte of the TH.  For IP data the
          starting point SHOULD be the first byte of the IP header.

          It is left to implementations to determine how much of
          each PDU to return in a trace element.

          The zero-length string indicates that no trace
          data is available."
      SYNTAX OCTET STRING (SIZE (0 | 3..4096))

  -- Top-level structure of the MIB

  tn3270eNotifications  OBJECT IDENTIFIER ::= { tn3270eMIB 0 }
  tn3270eObjects        OBJECT IDENTIFIER ::= { tn3270eMIB 1 }
  tn3270eConformance    OBJECT IDENTIFIER ::= { tn3270eMIB 3 }

  -- MIB Objects

  tn3270eSrvrConfTable OBJECT-TYPE
      SYNTAX      SEQUENCE OF Tn3270eSrvrConfEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "This table defines the configuration elements for
          TN3270E servers.  The number of entries in this table
          is expected to vary depending on the location of the
          table.  A particular TN3270E server is expected to
          have a single entry.  Modeling of the configuration
          elements as a table allows multiple TN3270E
          servers to be serviced by the same SNMP agent.



White & Moore               Standards Track                    [Page 13]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


          An implementation SHOULD NOT retain an SNMP-created
          entry in this table across re-IPLs (Initial Program
          Loads) of the corresponding TN3270E server."

      ::= { tn3270eObjects 1 }

  tn3270eSrvrConfEntry OBJECT-TYPE
      SYNTAX      Tn3270eSrvrConfEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Definition of the configuration elements for a single
          TN3270E server."
      INDEX       { tn3270eSrvrConfIndex }
      ::= { tn3270eSrvrConfTable 1 }

  Tn3270eSrvrConfEntry ::= SEQUENCE {
      tn3270eSrvrConfIndex             Unsigned32,
      tn3270eSrvrConfInactivityTimeout Unsigned32,
      tn3270eSrvrConfConnectivityChk   INTEGER,
      tn3270eSrvrConfTmNopInactTime    Unsigned32,
      tn3270eSrvrConfTmNopInterval     Unsigned32,
      tn3270eSrvrFunctionsSupported    IANATn3270Functions,
      tn3270eSrvrConfAdminStatus       INTEGER,
      tn3270eSrvrConfOperStatus        INTEGER,
      tn3270eSrvrConfSessionTermState  INTEGER,
      tn3270eSrvrConfSrvrType          INTEGER,
      tn3270eSrvrConfContact           SnmpAdminString,
      tn3270eSrvrConfRowStatus         RowStatus,
      tn3270eSrvrConfLastActTime       DateAndTime,
      tn3270eSrvrConfTmTimeout         Unsigned32
    }

  tn3270eSrvrConfIndex  OBJECT-TYPE
      SYNTAX      Unsigned32 (1..4294967295)
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "Identifier for a single TN3270E server.

         tn3270eSrvrConfIndex values need not be
         contiguous."
      ::= { tn3270eSrvrConfEntry 1 }

  tn3270eSrvrConfInactivityTimeout OBJECT-TYPE
      SYNTAX      Unsigned32 (0..99999999)
      UNITS "seconds"
      MAX-ACCESS  read-create



White & Moore               Standards Track                    [Page 14]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


      STATUS      current
      DESCRIPTION
         "The inactivity time-out specified in seconds.  When a
          connection has been inactive for the number of seconds
          specified by this object it is closed.  Only user traffic
          is considered when determining whether there has been
          activity on a connection.

          The default value 0 means that no inactivity time-out is
          in effect."
      DEFVAL { 0 }
      ::= { tn3270eSrvrConfEntry 2 }

  tn3270eSrvrConfConnectivityChk OBJECT-TYPE
      SYNTAX      INTEGER {
                            timingMark(1),
                            nop(2),
                            noCheck(3)
                          }
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
         "This object enables TIMING-MARK processing, NOP
          processing, or neither for a TN3270E server."
      DEFVAL { noCheck }
      ::= { tn3270eSrvrConfEntry 3 }

  tn3270eSrvrConfTmNopInactTime OBJECT-TYPE
      SYNTAX      Unsigned32 (1..86400) -- 1 second to 24 hours
      UNITS "seconds"
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
         "The amount of time a connection must have had no
         traffic on it in order for a TIMING-MARK or NOP request
         to be sent on the connection.  This value applies only
         when connections are being examined for recent activity
         on a scan interval controlled by the value of the
         tn3270eSrvrConfTmNopInterval object."
      DEFVAL { 600 }   -- 10 minutes
      ::= { tn3270eSrvrConfEntry 4 }

  tn3270eSrvrConfTmNopInterval OBJECT-TYPE
      SYNTAX      Unsigned32 (1..86400) -- 1 second to 24 hours
      UNITS "seconds"
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION



White & Moore               Standards Track                    [Page 15]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


         "The scan interval to be used by a TN3270E server when
         it examines its Telnet connections for recent activity.
         The server scans its Telnet connections on the interval
         provided by this object, looking for ones that have been
         idle for more than the value provided by the
         tn3270eSrvrConfTmNopInactTime object.  A TIMING-MARK or
         NOP request is sent for each connection that has
         exhibited no activity for this period of time."
      DEFVAL { 120 }   -- 2 minutes
      ::= { tn3270eSrvrConfEntry 5 }

  tn3270eSrvrFunctionsSupported OBJECT-TYPE
      SYNTAX    IANATn3270Functions
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "This object indicates the functions supported by a
          TN3270E server."
      DEFVAL { { scsCtlCodes, dataStreamCtl,
                 responses, bindImage, sysreq } }
      ::= { tn3270eSrvrConfEntry 6 }

  tn3270eSrvrConfAdminStatus OBJECT-TYPE
      SYNTAX  INTEGER {
                        up(1),
                        down(2),
                        stopImmediate(3)
                      }
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "The desired state of the TN3270E server represented
           by this entry in the table:

           up(1)            - Activate this TN3270E server.
           down(2)          - Informs the associated TN3270E
                              server to gracefully terminate
                              its processing.
           stopImmediate(3) - Informs the associated TN3270E
                              server to terminate itself
                              immediately.

           When a managed system creates an entry in this table,
           tn3270eSrvrConfAdminStatus and tn3270eSrvrConfOperStatus
           are initialized as up(1) by default.

           The exact behavior of a server in response to a down(2)
           or stopImmediate(3) command is left implementation-



White & Moore               Standards Track                    [Page 16]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


           dependent.  A TN3270E server that is capable of it
           SHOULD close all of its TN3270 and TN3270E sessions
           during a graceful termination.

           Often the function enabled via stopImmediate(3) is used
           as a last resort by a system administrator, to attempt
           to either bring down a hung TN3270E server or free up
           its resources immediately to aid in general system
           availability, or to shut down a TN3270E server that is
           not recognizing a down(2) request.

           A TN3270E server that does not distinguish between
           down(2) or stopImmediate(3) transitions should not
           support stopImmediate(3)."
      DEFVAL { up }
      ::= { tn3270eSrvrConfEntry 7 }

  tn3270eSrvrConfOperStatus OBJECT-TYPE
      SYNTAX  INTEGER {
                       up(1),
                       down(2),
                       busy(3),
                       shuttingDown(4)
                      }
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "The current operational state of a TN3270E server.
         The following values are defined:

          up(1)            - the server is active and accepting
                             new client connections
          down(2)          - the server is not active
          busy(3)          - the server is active, but is not
                             accepting new client connections
                             because it lacks the resources to
                             do so
          shuttingDown(4)  - the server is active, but is not
                             accepting new client connections
                             because it is in the process of
                             performing a graceful shutdown."
      DEFVAL { up }
      ::= { tn3270eSrvrConfEntry 8 }

  tn3270eSrvrConfSessionTermState OBJECT-TYPE
      SYNTAX  INTEGER {
                        terminate(1),
                        luSessionPend(2),



White & Moore               Standards Track                    [Page 17]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


                        queueSession(3)
                      }
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
         "This object determines what a TN3270E server
          should do when a TN3270 Session terminates:
         terminate(1)     => Terminate the TCP connection.
         luSessionPend(2) => Do not drop the TCP connection
                             associated with a client when its
                             TN3270 session ends.  Processing
                             should redrive session initialization
                             as if the client were first connecting.
         queueSession(3)  => This value relates to the Close
                             Destination PASS (CLSDST PASS) operation
                             in VTAM.  An example provides the
                             easiest explanation.  Suppose a TN3270E
                             client is in session with APPL1, and
                             APPL1 does a CLSDST PASS of the client's
                             session to APPL2.  queueSession(3)
                             specifies that the TN3270E server must
                             keep the TCP connection with the client
                             active after it receives the UNBIND from
                             APPL1, waiting for the BIND from APPL2."
      DEFVAL { terminate }
      ::= { tn3270eSrvrConfEntry 9 }

  tn3270eSrvrConfSrvrType OBJECT-TYPE
      SYNTAX      INTEGER {
                            host(1),
                            gateway(2)
                          }
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "This object indicates the type of TN3270E server.
          The existence of MIB tables and objects that will be
          defined by follow-on MIBs may be predicated on whether
          the TN3270E server can be local to the same host as a
          target application (host(1)) or will always be remote
          (gateway(2)).

          A host TN3270E server refers to an implementation where
          the TN3270E server is collocated with the Systems
          Network Architecture (SNA) System Services Control Point
          (SSCP) for the dependent Secondary Logical Units (SLUs)
          that the server makes available to its clients for
          connecting into an SNA network.



White & Moore               Standards Track                    [Page 18]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


          A gateway TN3270E server resides on an SNA node other
          than an SSCP, either an SNA type 2.0 node or an APPN node
          acting in the role of a Dependent LU Requester (DLUR).

          Host and gateway TN3270E server implementations typically
          differ greatly as to their internal implementation and
          system definition (SYSDEF) requirements."
      ::= { tn3270eSrvrConfEntry 10 }

  tn3270eSrvrConfContact OBJECT-TYPE
      SYNTAX      SnmpAdminString
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "This object provides a scratch pad for a TN3270E
          server administrator for storing information for
          later retrieval."
      DEFVAL { ''H }   -- the empty string
      ::= { tn3270eSrvrConfEntry 11 }

  tn3270eSrvrConfRowStatus OBJECT-TYPE
      SYNTAX      RowStatus
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "This object allows entries to be created and deleted
          in the tn3270eSrvrConfTable.  Entries may also be
          created and deleted as a result of implementation-
          dependent operations.

          With the exception of tn3270eSrvrConfSrvrType, which
          an implementation can easily fill in for itself, all
          the columnar objects in this table have DEFVALs
          associated with them.  Consequently, a Management
          Station can create a conceptual row via a SET
          operation that specifies a value only for this object.

          When a tn3270eSrvrConfEntry is deleted (by setting
          this object to destroy(6)), this has the side-effect
          of removing all the associated entries (i.e., those
          having the same tn3270eSrvrConfIndex) from the
          tn3270eSrvrPortTable, the tn3270eSrvrStatsTable, the
          tn3270eClientGroupTable, the tn3270eResPoolTable,
          the tn3270eSnaMapTable, the tn3270eClientResMapTable,
          and the tn3270eResMapTable.  All entries in the
          tn3270eTcpConnTable that belong to a TN3270E server
          that has been deleted MUST also be removed.




White & Moore               Standards Track                    [Page 19]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


          In other words, a tn3270eSrvrConfEntry must exist for
          a TN3270E server in order for it to have entries in
          any of the other tables defined by this MIB."
      REFERENCE
          "RFC 1903, 'Textual Conventions for version 2 of the
          Simple Network Management Protocol (SNMPv2).'"
      ::= { tn3270eSrvrConfEntry 12 }

  tn3270eSrvrConfLastActTime OBJECT-TYPE
      SYNTAX      DateAndTime
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "This object reports the DateAndTime when a TN3270E
          server was most recently activated.

          The special value of all '00'Hs indicates that the
          server has never been active, i.e., that the value of
          tn3270eSrvrOperStatus has never been anything other
          than down(2)."
      DEFVAL { '0000000000000000'H }
      ::= { tn3270eSrvrConfEntry 13 }

  tn3270eSrvrConfTmTimeout OBJECT-TYPE
      SYNTAX      Unsigned32 (1..600) -- 1 second to 10 minutes
      UNITS "seconds"
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
         "The TIMING-MARK time-out, specified in seconds."
      DEFVAL { 5 }   -- 5 seconds
      ::= { tn3270eSrvrConfEntry 14 }

  tn3270eSrvrPortTable OBJECT-TYPE
      SYNTAX      SEQUENCE OF Tn3270eSrvrPortEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "This table defines the TCP ports associated with
          TN3270E servers.  No entry in this table shall exist
          without a corresponding (same tn3270eSrvrConfIndex)
          entry in the tn3270eSrvrConfTable existing.

          An implementation SHOULD NOT retain SNMP-created
          entries in this table across re-IPLs (Initial Program
          Loads) of the corresponding TN3270E server."
      ::= { tn3270eObjects 2 }




White & Moore               Standards Track                    [Page 20]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


  tn3270eSrvrPortEntry OBJECT-TYPE
      SYNTAX      Tn3270eSrvrPortEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Definition of a single TCP port assignment to a
           TN3270E server.  Assignment of a port on a local
           address basis is enabled though use of
           tn3270eSrvrPortAddrType and tn3270eSrvrPortAddress.

           A TCP port assignment that is not restricted to
           a local address SHALL specify a tn3270eSrvrPortAddrType
           of unknown(0), and SHALL use a zero-length octet string
           for the tn3270eSrvrPortAddress."
      INDEX       {
                    tn3270eSrvrConfIndex,
                    tn3270eSrvrPort,
                    tn3270eSrvrPortAddrType,
                    tn3270eSrvrPortAddress
                  }
      ::= { tn3270eSrvrPortTable 1 }

  Tn3270eSrvrPortEntry ::= SEQUENCE {
      tn3270eSrvrPort                 Unsigned32,
      tn3270eSrvrPortAddrType         IANATn3270eAddrType,
      tn3270eSrvrPortAddress          IANATn3270eAddress,
      tn3270eSrvrPortRowStatus        RowStatus
    }

  tn3270eSrvrPort OBJECT-TYPE
      SYNTAX      Unsigned32 (0..65535)
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
         "Indicates a port assigned to a server."
      ::= { tn3270eSrvrPortEntry 1 }

  tn3270eSrvrPortAddrType OBJECT-TYPE
      SYNTAX      IANATn3270eAddrType
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Indicates the type of an address local to the host on
          which the TN3270E server resides that is represented
          in tn3270eSrvrPortAddress.  A value of unknown(0)
          SHALL be used for this object when the port is not
          to be restricted to a local address."
      ::= { tn3270eSrvrPortEntry 2 }



White & Moore               Standards Track                    [Page 21]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


  tn3270eSrvrPortAddress OBJECT-TYPE
      SYNTAX      IANATn3270eAddress
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "A local address on the host that a TN3270E server
           resides on that is associated with a TCP port that
           is to be used or is in use by a TN3270E server.
           tn3270eClientGroupAddrType indicates the
           address type (IPv4 or IPv6, for example).

           A zero-length octet string SHALL be used as the
           value of this object when a local address isn't
           being specified."
      ::= { tn3270eSrvrPortEntry 3 }

  tn3270eSrvrPortRowStatus OBJECT-TYPE
      SYNTAX      RowStatus
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "This object allows entries to be created and deleted
          in the tn3270eSrvrPortTable.  Entries may also be
          created and deleted as a result of implementation-
          dependent operations.

          Since this is the only accessible object in this table,
          a Management Station can create a conceptual row via a SET
          operation that specifies a value only for this object.

          An entry in this table is deleted by setting this object
          to destroy(6).  Deletion of a tn3270eSrvrPortEntry has
          no effect on any other table entry defined by this MIB."
      REFERENCE
          "RFC 1903, 'Textual Conventions for version 2 of the
          Simple Network Management Protocol (SNMPv2).'"
      ::= { tn3270eSrvrPortEntry 4 }

  tn3270eSrvrStatsTable OBJECT-TYPE
      SYNTAX      SEQUENCE OF Tn3270eSrvrStatsEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "This table defines a set of statistics concerning
          TN3270E server performance.

          No entry in this table shall exist without
          a corresponding (same tn3270eSrvrConfIndex) entry in



White & Moore               Standards Track                    [Page 22]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


          the tn3270eSrvrConfTable existing."
      ::= { tn3270eObjects 3 }

  tn3270eSrvrStatsEntry OBJECT-TYPE
      SYNTAX      Tn3270eSrvrStatsEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "A collection of statistical and maximum usage objects
          for a single TN3270 server.  An entry can represent the total
          activity of the server, or it can represent the activity
          occurring at the server on either a port or a
          port-and-local-address basis.

          Collection of the statistics represented by the objects
          in this table is not mandatory.   An implementation
          of this table MUST use only one of the three levels of
          refinement that this table supports for the entries
          associated with each TN3270E server.

          The indexing for a row that represents total server
          statistics is as follows:

               tn3270eSrvrConfIndex      value identifying the server
               tn3270eSrvrPort           0
               tn3270eSrvrPortAddrType   unknown(0)
               tn3270eSrvrPortAddress    zero-length octet string.

          On a port basis:

               tn3270eSrvrConfIndex      value identifying the server
               tn3270eSrvrPort           > 0
               tn3270eSrvrPortAddrType   unknown(0)
               tn3270eSrvrPortAddress    zero-length octet string.

          On a port-and-local-address basis:

               tn3270eSrvrConfIndex      value identifying the server
               tn3270eSrvrPort           > 0
               tn3270eSrvrPortAddrType   valid value other than unknown(0)
               tn3270eSrvrPortAddress    non-zero-length octet string.

         "
      INDEX       {
                    tn3270eSrvrConfIndex,
                    tn3270eSrvrPort,
                    tn3270eSrvrPortAddrType,
                    tn3270eSrvrPortAddress



White & Moore               Standards Track                    [Page 23]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


                  }
      ::= { tn3270eSrvrStatsTable 1 }

  Tn3270eSrvrStatsEntry ::= SEQUENCE {
      tn3270eSrvrStatsUpTime          TimeStamp,
      tn3270eSrvrStatsMaxTerms        Unsigned32,
      tn3270eSrvrStatsInUseTerms      Gauge32,
      tn3270eSrvrStatsSpareTerms      Gauge32,
      tn3270eSrvrStatsMaxPtrs         Unsigned32,
      tn3270eSrvrStatsInUsePtrs       Gauge32,
      tn3270eSrvrStatsSparePtrs       Gauge32,
      tn3270eSrvrStatsInConnects      Counter32,
      tn3270eSrvrStatsConnResrceRejs  Counter32,
      tn3270eSrvrStatsDisconnects     Counter32,
      tn3270eSrvrStatsHCInOctets      Counter64,
      tn3270eSrvrStatsInOctets        Counter32,
      tn3270eSrvrStatsHCOutOctets     Counter64,
      tn3270eSrvrStatsOutOctets       Counter32,
      tn3270eSrvrStatsConnErrorRejs   Counter32
    }

  tn3270eSrvrStatsUpTime OBJECT-TYPE
      SYNTAX      TimeStamp
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The value of the sysUpTime object the last time
          the TN3270E server was re-initialized.

          Server re-initialization is the only discontinuity
          event for the counters in this table.  Even if table
          entries are on a port or port-and-local-address
          basis, port deactivation and reactivation do not
          result in counter discontinuities."
      ::= { tn3270eSrvrStatsEntry 2 }

  tn3270eSrvrStatsMaxTerms OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "LUs"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the maximum number of terminal LUs available
         for use at a TN3270E server for the granularity of this
         conceptual row (server-wide, port, or
         port-and-local-address)."
      ::= { tn3270eSrvrStatsEntry 3 }




White & Moore               Standards Track                    [Page 24]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


  tn3270eSrvrStatsInUseTerms OBJECT-TYPE
      SYNTAX      Gauge32
      UNITS       "LUs"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of terminal LUs currently in
         use at a TN3270E server for the granularity of this
         conceptual row (server-wide, port, or
         port-and-local-address)."
      ::= { tn3270eSrvrStatsEntry 4 }

  tn3270eSrvrStatsSpareTerms OBJECT-TYPE
      SYNTAX      Gauge32
      UNITS       "LUs"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of free terminal LUs at a TN3270E
         server for the granularity of this conceptual row
         (server-wide, port, or port-and-local-address).

         It is possible that the difference between
         tn3270eSrvrStatsMaxTerms and tn3270eSrvrStatsInUseTerms
         in a conceptual row does not equal the value of
         tn3270eSrvrStatsSpareTerms in that row:  an LU may
         exist but not be usable by a client connection.

         Alternatively, the administrative ceiling represented
         by tn3270eSrvrStatsMaxTerms may have been lowered to
         a point where it is less than the current value of
         tn3270eSrvrStatsInUseTerms.  In this case
         tn3270eSrvrStatsSpareTerms returns the value 0."

      ::= { tn3270eSrvrStatsEntry 5 }

  tn3270eSrvrStatsMaxPtrs OBJECT-TYPE
      SYNTAX      Unsigned32
      UNITS       "Printer Resources"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the maximum number of printer resources
         available for use by a TN3270E server for the
         granularity of this conceptual row (server-wide,
         port, or port-and-local-address)."
      ::= { tn3270eSrvrStatsEntry 6 }




White & Moore               Standards Track                    [Page 25]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


  tn3270eSrvrStatsInUsePtrs OBJECT-TYPE
      SYNTAX      Gauge32
      UNITS       "Printer Resources"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of printer resources
         currently in use by a TN3270E server for the
         granularity of this conceptual row (server-wide,
         port, or port-and-local-address)."
      ::= { tn3270eSrvrStatsEntry 7 }

  tn3270eSrvrStatsSparePtrs OBJECT-TYPE
      SYNTAX      Gauge32
      UNITS       "Spare Printer Resources"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of free printer resources at
         a TN3270E server for the granularity of this conceptual
         row (server-wide, port, or port-and-local-address).

         It is possible that the difference between
         tn3270eSrvrStatsMaxPtrs and tn3270eSrvrStatsInUsePtrs
         in a conceptual row does not equal the value of
         tn3270eSrvrStatsSparePtrs in that row:  a printer
         resource may exist but not be usable by a client
         connection.

         Alternatively, the administrative ceiling represented
         by tn3270eSrvrStatsMaxPtrs may have been lowered to
         a point where it is less than the current value of
         tn3270eSrvrStatsInUsePtrs.  In this case
         tn3270eSrvrStatsSparePtrs returns the value 0."
      ::= { tn3270eSrvrStatsEntry 8 }

  tn3270eSrvrStatsInConnects OBJECT-TYPE
      SYNTAX      Counter32
      UNITS       "connections"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of client (TCP) connections
         that succeeded at a TN3270E server for the
         granularity of this conceptual row (server-wide,
         port, or port-and-local-address).

         The tn3270eSrvrStatsConnResrceRejs and



White & Moore               Standards Track                    [Page 26]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


         tn3270eSrvrStatsConnErrorRejs objects provide a count
         of failed connection attempts.

         A Management Station can detect discontinuities in
         this counter by monitoring the tn3270eSrvrStatsUpTime
         object."
      ::= { tn3270eSrvrStatsEntry 9 }

  tn3270eSrvrStatsConnResrceRejs OBJECT-TYPE
      SYNTAX      Counter32
      UNITS       "connection attempts"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of (TCP) connections rejected
         during connection setup at a TN3270E server for the
         granularity of this conceptual row (server-wide,
         port, or port-and-local-address) due to a lack of
         resources at the server.  An example of when this
         counter would be incremented is when no terminal
         or printer resource is available to associate with a
         client's TCP connection.

         A Management Station can detect discontinuities in
         this counter by monitoring the tn3270eSrvrStatsUpTime
         object."
      ::= { tn3270eSrvrStatsEntry 10 }

  tn3270eSrvrStatsDisconnects OBJECT-TYPE
      SYNTAX      Counter32
      UNITS       "disconnections"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of (TCP) connections that were
         disconnected at a TN3270E server for the
         granularity of this conceptual row (server-wide,
         port, or port-and-local-address).

         A Management Station can detect discontinuities in
         this counter by monitoring the tn3270eSrvrStatsUpTime
         object."
      ::= { tn3270eSrvrStatsEntry 11 }

  tn3270eSrvrStatsHCInOctets OBJECT-TYPE
      SYNTAX      Counter64
      UNITS       "octets"
      MAX-ACCESS  read-only



White & Moore               Standards Track                    [Page 27]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


      STATUS      current
      DESCRIPTION
         "Indicates the number of octets received from TN3270
         and TN3270E clients for the granularity of this
         conceptual row (server-wide, port, or
         port-and-local-address).

         A Management Station can detect discontinuities in
         this counter by monitoring the tn3270eSrvrStatsUpTime
         object."
      ::= { tn3270eSrvrStatsEntry 12 }

  tn3270eSrvrStatsInOctets OBJECT-TYPE
      SYNTAX      Counter32
      UNITS       "octets"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Low-order 32 bits of tn3270eSrvrStatsHCInOctets for
         this conceptual row.

         A Management Station can detect discontinuities in
         this counter by monitoring the tn3270eSrvrStatsUpTime
         object."
      ::= { tn3270eSrvrStatsEntry 13 }

  tn3270eSrvrStatsHCOutOctets OBJECT-TYPE
      SYNTAX      Counter64
      UNITS       "octets"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of octets sent to TN3270
         and TN3270E clients for the granularity of this
         conceptual row (server-wide, port, or
         port-and-local-address).

         A Management Station can detect discontinuities in
         this counter by monitoring the tn3270eSrvrStatsUpTime
         object."
      ::= { tn3270eSrvrStatsEntry 14 }

  tn3270eSrvrStatsOutOctets OBJECT-TYPE
      SYNTAX      Counter32
      UNITS       "octets"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION



White & Moore               Standards Track                    [Page 28]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


         "Low-order 32 bits of tn3270eSrvrStatsHCOutOctets for
         this conceptual row.

         A Management Station can detect discontinuities in
         this counter by monitoring the tn3270eSrvrStatsUpTime
         object."
      ::= { tn3270eSrvrStatsEntry 15 }

  tn3270eSrvrStatsConnErrorRejs OBJECT-TYPE
      SYNTAX      Counter32
      UNITS       "connection attempts"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "Indicates the number of (TCP) connections rejected
         during connection setup at a TN3270E server for the
         granularity of this conceptual row (server-wide,
         port, or port-and-local-address) due to an error
         of some type.  An example of when this counter would
         be incremented is when the client and the server
         cannot agree on a common set of TN3270E functions for
         the connection.

         A Management Station can detect discontinuities in
         this counter by monitoring the tn3270eSrvrStatsUpTime
         object."
      ::= { tn3270eSrvrStatsEntry 16 }

  tn3270eClientGroupTable OBJECT-TYPE
      SYNTAX      SEQUENCE OF Tn3270eClientGroupEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "This table defines client address groupings for use
          by a TN3270E server.

          No entry in this table shall exist without
          a corresponding (same tn3270eSrvrConfIndex) entry in
          the tn3270eSrvrConfTable existing.

          An implementation SHOULD NOT retain SNMP-created
          entries in this table across re-IPLs (Initial Program
          Loads) of the corresponding TN3270E server."
      ::= { tn3270eObjects 4 }

  tn3270eClientGroupEntry OBJECT-TYPE
      SYNTAX      Tn3270eClientGroupEntry
      MAX-ACCESS  not-accessible



White & Moore               Standards Track                    [Page 29]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


      STATUS      current
      DESCRIPTION
          "Definition of a single client address entry.  All
          entries with the same first two indexes,
          tn3270eSrvrConfIndex and tn3270eClientGroupName, are
          considered to be in the same client group."
      INDEX       { tn3270eSrvrConfIndex,
                    tn3270eClientGroupName,
                    tn3270eClientGroupAddrType,
                    tn3270eClientGroupAddress }
      ::= { tn3270eClientGroupTable 1 }

  Tn3270eClientGroupEntry ::= SEQUENCE {
      tn3270eClientGroupName           Utf8String,
      tn3270eClientGroupAddrType       IANATn3270eAddrType,
      tn3270eClientGroupAddress        IANATn3270eAddress,
      tn3270eClientGroupSubnetMask     IpAddress,
      tn3270eClientGroupPfxLength      Unsigned32,
      tn3270eClientGroupRowStatus      RowStatus
  }

  tn3270eClientGroupName OBJECT-TYPE
      SYNTAX      Utf8String (SIZE(1..24))
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The name of a client group.  Note: client group
          names are required to be unique only with respect
          to a single TN3270E server."
      ::= { tn3270eClientGroupEntry 1 }

  tn3270eClientGroupAddrType OBJECT-TYPE
      SYNTAX      IANATn3270eAddrType
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Indicates the type of the address represented in
           tn3270eClientGroupAddress."
      ::= { tn3270eClientGroupEntry 2 }

  tn3270eClientGroupAddress OBJECT-TYPE
      SYNTAX      IANATn3270eAddress
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The client address of a member of a client group.
          The value of tn3270eClientGroupAddrType indicates
          the address type (IPv4 or IPv6, for example)."



White & Moore               Standards Track                    [Page 30]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


      ::= { tn3270eClientGroupEntry 3 }

  tn3270eClientGroupSubnetMask OBJECT-TYPE
      SYNTAX      IpAddress
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "The corresponding subnet mask associated with
           tn3270eClientGroupAddress.  A single IP address is
           represented by having this object contain the value
           of 255.255.255.255.

           This object's value is meaningful only if
           tn3270eClientGroupAddrType has a value of ipv4(1)."
      DEFVAL { 'FFFFFFFF'H }
      ::= { tn3270eClientGroupEntry 4 }

  tn3270eClientGroupPfxLength OBJECT-TYPE
      SYNTAX      Unsigned32 (0..128)
      UNITS       "bits"
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "The corresponding IPv6 network prefix length.

          This object's value is meaningful only if
          tn3270eClientGroupAddrType  has a value of ipv6(2)."
      DEFVAL { 0 }
      ::= { tn3270eClientGroupEntry 5 }

  tn3270eClientGroupRowStatus OBJECT-TYPE
      SYNTAX      RowStatus
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "This object allows entries to be created and deleted
          in the tn3270eClientGroupTable.  Entries may also be
          created and deleted as a result of implementation-
          dependent operations.

          An entry in this table is deleted by setting this object
          to destroy(6).  When the number of entries in this table
          for a given client group becomes 0, this has the side-
          effect of removing any entries for the group in the
          tn3270eClientResMapTable."
      REFERENCE
          "RFC 1903, 'Textual Conventions for version 2 of the
          Simple Network Management Protocol (SNMPv2).'"



White & Moore               Standards Track                    [Page 31]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


      ::= { tn3270eClientGroupEntry 6 }

  tn3270eResPoolTable OBJECT-TYPE
      SYNTAX      SEQUENCE OF Tn3270eResPoolEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "This table defines resource groupings; the term
          'pool' is used as it is defined by RFC 2355.

          No entry in this table shall exist without
          a corresponding (same tn3270eSrvrConfIndex) entry in
          the tn3270eSrvrConfTable existing.

          An implementation SHOULD NOT retain SNMP-created
          entries in this table across re-IPLs (Initial Program
          Loads) of the corresponding TN3270E server."
      ::= { tn3270eObjects 5 }

  tn3270eResPoolEntry OBJECT-TYPE
      SYNTAX      Tn3270eResPoolEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Definition of a single resource pool member.  All entries
          with the same first two indexes, tn3270eSrvrConfIndex and
          tn3270eResPoolName, are considered to be in the same pool."
      INDEX  { tn3270eSrvrConfIndex,
               tn3270eResPoolName,
               tn3270eResPoolElementName }
      ::= { tn3270eResPoolTable 1 }

  Tn3270eResPoolEntry ::= SEQUENCE {
      tn3270eResPoolName           Utf8String,
      tn3270eResPoolElementName    SnaResourceName,
      tn3270eResPoolElementType    IANATn3270ResourceType,
      tn3270eResPoolRowStatus      RowStatus
  }

  tn3270eResPoolName OBJECT-TYPE
      SYNTAX      Utf8String (SIZE(1..24))
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The name of a resource pool."
      ::= { tn3270eResPoolEntry 1 }

  tn3270eResPoolElementName OBJECT-TYPE



White & Moore               Standards Track                    [Page 32]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


      SYNTAX      SnaResourceName
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The name of a member of a resource pool."
      ::= { tn3270eResPoolEntry 2 }

  tn3270eResPoolElementType OBJECT-TYPE
      SYNTAX      IANATn3270ResourceType
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "The type of the entity in a resource pool."
      ::= { tn3270eResPoolEntry 3 }

  tn3270eResPoolRowStatus OBJECT-TYPE
      SYNTAX      RowStatus
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "This object allows entries to be created and deleted
          in the tn3270eResPoolTable.  Entries may also be
          created and deleted as a result of implementation-
          dependent operations.

          An entry in this table is deleted by setting this object
          to destroy(6).  When all entries in this table associated
          with the same tn3270eResPoolElementName have been removed,
          then any associated (tn3270eResPoolElementName matching
          tn3270eClientResMapPoolName with same tn3270eSrvrConfIndex
          values) entries in the tn3270eClientResMapTable SHALL
          also be removed."
      REFERENCE
          "RFC 1903, 'Textual Conventions for version 2 of the
          Simple Network Management Protocol (SNMPv2).'"
      ::= { tn3270eResPoolEntry 4 }

  tn3270eSnaMapTable OBJECT-TYPE
      SYNTAX      SEQUENCE OF Tn3270eSnaMapEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "This table provide a mapping from the name by which
          a secondary LU is known in the SNA network to the
          name by which it is known locally at the TN3270e
          server.  This latter name serves as an index into
          the tn3270eResPoolTable and the tn3270eResMapTable.




White & Moore               Standards Track                    [Page 33]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


          No entry in this table shall exist without
          a corresponding (same tn3270eSrvrConfIndex) entry in
          the tn3270eSrvrConfTable existing."
      ::= { tn3270eObjects 6 }

  tn3270eSnaMapEntry OBJECT-TYPE
      SYNTAX      Tn3270eSnaMapEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Definition of a single mapping from an SSCP-supplied
          SLU name to a local SLU name.

          Note:  In certain pathological cases, it is possible
          that an SSCP will send on an ACTLU for a local LU an
          SLU name currently represented by an entry in this
          table that associates it with a different local LU.
          In these cases the association from the newer ACTLU
          SHOULD be the one represented in this table."
      INDEX  { tn3270eSrvrConfIndex,
               tn3270eSnaMapSscpSuppliedName }
      ::= { tn3270eSnaMapTable 1 }

  Tn3270eSnaMapEntry ::= SEQUENCE {
      tn3270eSnaMapSscpSuppliedName     SnaResourceName,
      tn3270eSnaMapLocalName            SnaResourceName,
      tn3270eSnaMapPrimaryLuName        SnaResourceName
  }

  tn3270eSnaMapSscpSuppliedName OBJECT-TYPE
      SYNTAX      SnaResourceName
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The name of the secondary LU (SLU) as it is known in
           the SNA network.  This name is sent by the SSCP on
           the Activate Logical Unit (ACTLU) request."
      ::= { tn3270eSnaMapEntry 1 }

  tn3270eSnaMapLocalName OBJECT-TYPE
      SYNTAX      SnaResourceName
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The local name of the secondary LU (SLU)."
      ::= { tn3270eSnaMapEntry 2 }

  tn3270eSnaMapPrimaryLuName  OBJECT-TYPE



White & Moore               Standards Track                    [Page 34]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


      SYNTAX   SnaResourceName
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "When there is a currently active LU-LU session for
          this connection, this object returns the primary LU
          (PLU) name from the BIND.  When there is no active
          LU-LU session, or when the PLU name is unavailable
          for some other reason, this object returns a
          zero-length octet string."
      ::= { tn3270eSnaMapEntry 3 }

  tn3270eClientResMapTable OBJECT-TYPE
      SYNTAX      SEQUENCE OF Tn3270eClientResMapEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "This table defines resource-pool to client-group
          mappings.  Since both the resource pool name and client
          group name are included in the index clause of this
          table, multiple resource pools can be assigned to the
          same client group.  This enables use of multiple
          resource pools for use in client to resource mapping.
          Assigning multiple client groups to the same resource
          pool is also allowed, but is not the primary purpose
          for how the indexing is structured.

          Assignment of a resource pool to client group can be
          restricted based on TCP port.  An index value of 0 for
          tn3270eClientResMapClientPort disables restriction of
          resource assignment based on client target port
          selection.

          No entry in this table shall exist without
          a corresponding (same tn3270eSrvrConfIndex) entry in
          the tn3270eSrvrConfTable existing.

          An implementation SHOULD NOT retain SNMP-created
          entries in this table across re-IPLs (Initial Program
          Loads) of the corresponding TN3270E server."
      ::= { tn3270eObjects 7 }

  tn3270eClientResMapEntry OBJECT-TYPE
      SYNTAX      Tn3270eClientResMapEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Definition of a single resource pool to client group



White & Moore               Standards Track                    [Page 35]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


          mapping."
      INDEX  { tn3270eSrvrConfIndex,
               tn3270eClientResMapPoolName,
               tn3270eClientResMapClientGroupName,
               tn3270eClientResMapClientPort }
      ::= { tn3270eClientResMapTable 1 }

  Tn3270eClientResMapEntry ::= SEQUENCE {
      tn3270eClientResMapPoolName           Utf8String,
      tn3270eClientResMapClientGroupName    Utf8String,
      tn3270eClientResMapClientPort         Unsigned32,
      tn3270eClientResMapRowStatus          RowStatus
  }

  tn3270eClientResMapPoolName OBJECT-TYPE
      SYNTAX      Utf8String (SIZE(1..24))
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The name of a resource pool."
      ::= { tn3270eClientResMapEntry 1 }

  tn3270eClientResMapClientGroupName OBJECT-TYPE
      SYNTAX      Utf8String (SIZE(1..24))
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The name of the client group that is mapped to a
           resource pool."
      ::= { tn3270eClientResMapEntry 2 }

  tn3270eClientResMapClientPort OBJECT-TYPE
      SYNTAX      Unsigned32 (0..65535)
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "A port number restricting the scope of a mapping
          from a resource pool to a client group.  The
          value 0 for this object indicates that the scope
          of the mapping is not restricted."
      ::= { tn3270eClientResMapEntry 3 }

  tn3270eClientResMapRowStatus OBJECT-TYPE
      SYNTAX      RowStatus
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "This object allows entries to be created and deleted



White & Moore               Standards Track                    [Page 36]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


          in the tn3270eClientResMapTable.  Entries may also be
          created and deleted as a result of implementation-
          dependent operations.

          An entry in this table is deleted by setting this object
          to destroy(6).  Removing an entry from this table doesn't
          affect any other table entry defined in this MIB."
      REFERENCE
          "RFC 1903, 'Textual Conventions for version 2 of the
          Simple Network Management Protocol (SNMPv2).'"
      ::= { tn3270eClientResMapEntry 4 }

  tn3270eResMapTable OBJECT-TYPE
      SYNTAX      SEQUENCE OF Tn3270eResMapEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "This table defines the actual mapping of a resource
          to a client address.

          No entry in this table shall exist without
          a corresponding (same tn3270eSrvrConfIndex) entry in
          the tn3270eSrvrConfTable existing."
      ::= { tn3270eObjects 8 }

  tn3270eResMapEntry OBJECT-TYPE
      SYNTAX      Tn3270eResMapEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Definition of the mapping of a Resource Element to
           a client address."
      INDEX  { tn3270eSrvrConfIndex,
               tn3270eResMapElementName }
      ::= { tn3270eResMapTable 1 }

  Tn3270eResMapEntry ::= SEQUENCE {
      tn3270eResMapElementName       SnaResourceName,
      tn3270eResMapAddrType          IANATn3270eAddrType,
      tn3270eResMapAddress           IANATn3270eAddress,
      tn3270eResMapPort              Unsigned32,
      tn3270eResMapElementType       IANATn3270ResourceType,
      tn3270eResMapSscpSuppliedName  SnaResourceName
  }

  tn3270eResMapElementName OBJECT-TYPE
      SYNTAX      SnaResourceName
      MAX-ACCESS  not-accessible



White & Moore               Standards Track                    [Page 37]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


      STATUS      current
      DESCRIPTION
          "The name of a resource element.  This is the name by
          which the server implementing this table knows the
          resource.  It may be different from the name by which
          the resource is known in the SNA network.  This latter
          name is returned in the tn3270eResMapSscpSuppliedName
          object."
      ::= { tn3270eResMapEntry 1 }

  tn3270eResMapAddrType OBJECT-TYPE
      SYNTAX      IANATn3270eAddrType
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "Indicates the type of the client address represented
          in tn3270eResMapAddress."
      ::= { tn3270eResMapEntry 2 }

  tn3270eResMapAddress OBJECT-TYPE
      SYNTAX      IANATn3270eAddress
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "A client address."
      ::= { tn3270eResMapEntry 3 }

  tn3270eResMapPort OBJECT-TYPE
      SYNTAX      Unsigned32 (0..65535)
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "A client port."
      ::= { tn3270eResMapEntry 4 }

  tn3270eResMapElementType OBJECT-TYPE
      SYNTAX      IANATn3270ResourceType
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The type of the associated resource element."
      ::= { tn3270eResMapEntry 5 }

  tn3270eResMapSscpSuppliedName OBJECT-TYPE
      SYNTAX      SnaResourceName
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION



White & Moore               Standards Track                    [Page 38]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


          "The name of the secondary LU (SLU) as it is known
          in a SNA network.  This name is sent by the SSCP on
          the Activate Logical Unit (ACTLU) request.  If this
          name is not known, this object returns a zero-length
          octet string."
      ::= { tn3270eResMapEntry 6 }

  -- Define the set of objects to supplement the TCP Connection Table

  tn3270eTcpConnTable OBJECT-TYPE
      SYNTAX SEQUENCE OF Tn3270eTcpConnEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
           "This table has an entry for each TN3270(E) client
           connection that is currently active at a TN3270E server.
           An implementation MAY retain entries for connections
           that have been terminated, but which entries are
           retained, how many entries are retained, and how long
           they are retained is entirely implementation-dependent.

           The indexing for this table is designed to support the
           use of an SNMP GET-NEXT operation using only the remote
           address type, remote address, and remote port, as a way
           for a Management Station to retrieve the table entries
           related to a particular TN3270(E) client."
      ::= { tn3270eObjects 9 }

  tn3270eTcpConnEntry OBJECT-TYPE
      SYNTAX Tn3270eTcpConnEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Provides information about a single TN3270/TN3270E
          session.  Note: a tn3270eSrvrConfIndex is not needed
          in this table, since the combination of remote and
          local addresses and ports is sufficient to
          guarantee uniqueness across the TN3270E servers
          serviced by an SNMP agent.  Because of this indexing
          structure, however, this table does not support
          view-based access control policies that provide
          access to table rows on a per-server basis."
      INDEX { tn3270eTcpConnRemAddrType,
              tn3270eTcpConnRemAddress,
              tn3270eTcpConnRemPort,
              tn3270eTcpConnLocalAddrType,
              tn3270eTcpConnLocalAddress,
              tn3270eTcpConnLocalPort



White & Moore               Standards Track                    [Page 39]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


            }
      ::= { tn3270eTcpConnTable 1 }

  Tn3270eTcpConnEntry ::=
      SEQUENCE
      {
      tn3270eTcpConnRemAddrType          IANATn3270eAddrType,
      tn3270eTcpConnRemAddress           IANATn3270eAddress,
      tn3270eTcpConnRemPort              Unsigned32,
      tn3270eTcpConnLocalAddrType        IANATn3270eAddrType,
      tn3270eTcpConnLocalAddress         IANATn3270eAddress,
      tn3270eTcpConnLocalPort            Unsigned32,
      tn3270eTcpConnLastActivity         TimeTicks,
      tn3270eTcpConnBytesIn              Counter32,
      tn3270eTcpConnBytesOut             Counter32,
      tn3270eTcpConnResourceElement      SnaResourceName,
      tn3270eTcpConnResourceType         IANATn3270ResourceType,
      tn3270eTcpConnDeviceType           IANATn3270DeviceType,
      tn3270eTcpConnFunctions            IANATn3270Functions,
      tn3270eTcpConnId                   Unsigned32,
      tn3270eTcpConnClientIdFormat       IANATn3270eClientType,
      tn3270eTcpConnClientId             OCTET STRING,
      tn3270eTcpConnTraceData            Tn3270eTraceData,
      tn3270eTcpConnLogInfo              IANATn3270eLogData,
      tn3270eTcpConnLuLuBindImage        OCTET STRING,
      tn3270eTcpConnSnaState             INTEGER,
      tn3270eTcpConnStateLastDiscReason  INTEGER,
      tn3270eTcpConnSrvrConfIndex        Unsigned32,
      tn3270eTcpConnActivationTime       TimeStamp
      }

  tn3270eTcpConnRemAddrType OBJECT-TYPE
      SYNTAX   IANATn3270eAddrType
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Indicates the type of the value of the
          tn3270eTcpConnRemAddress object.  For example,
          ipv4(1) or ipv6(2)."
      ::= { tn3270eTcpConnEntry 1 }

  tn3270eTcpConnRemAddress OBJECT-TYPE
      SYNTAX      IANATn3270eAddress
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The remote address associated with a TN3270E client.
           tn3270eTcpConnRemAddrType indicates the address type



White & Moore               Standards Track                    [Page 40]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


           (IPv4 or IPv6, for example).

           If a TN3270(E) client is connected to its
           server via a proxy client the address represented by
           the value of this object shall be the remote client's
           address, not the proxy client's address."
      ::= { tn3270eTcpConnEntry 2 }

  tn3270eTcpConnRemPort OBJECT-TYPE
      SYNTAX      Unsigned32 (0..65535)
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The remote port associated with a TN3270E client.  The value 0
          is used if the tn3270eTcpConnRemAddrType identifies an address
          type that does not support ports.

          If a TN3270(E) client is connected to its server via a proxy
          client, the port represented by the value of this object shall
          be the remote client's port, not the proxy client's port."
      ::= { tn3270eTcpConnEntry 3 }

  tn3270eTcpConnLocalAddrType OBJECT-TYPE
      SYNTAX   IANATn3270eAddrType
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Indicates the type of the value of the
          tn3270eTcpConnLocalAddress object.  For example,
          ipv4(1) or ipv6(2)."
      ::= { tn3270eTcpConnEntry 4 }

  tn3270eTcpConnLocalAddress OBJECT-TYPE
      SYNTAX      IANATn3270eAddress
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The local address associated with a TN3270E client.
           tn3270eTcpConnRemAddrType indicates the address type
           (IPv4 or IPv6, for example)."
      ::= { tn3270eTcpConnEntry 5 }

  tn3270eTcpConnLocalPort OBJECT-TYPE
      SYNTAX      Unsigned32 (1..65535)
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "The remote port associated with a TN3270E client."



White & Moore               Standards Track                    [Page 41]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


      ::= { tn3270eTcpConnEntry 6 }

  tn3270eTcpConnLastActivity OBJECT-TYPE
      SYNTAX   TimeTicks
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The number of 100ths of seconds since any data was
           transferred for the associated TCP Connection."
      DEFVAL  { 0 }
      ::= { tn3270eTcpConnEntry 7 }

  tn3270eTcpConnBytesIn OBJECT-TYPE
      SYNTAX   Counter32
      UNITS "octets"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The number of bytes received by the server from TCP
          for this connection.

          A Management Station can detect discontinuities in
          this counter by monitoring the
          tn3270eTcpConnActivationTime object."
      ::= { tn3270eTcpConnEntry 8 }

  tn3270eTcpConnBytesOut OBJECT-TYPE
      SYNTAX   Counter32
      UNITS "octets"
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The number of bytes sent to TCP for this connection.

          A Management Station can detect discontinuities in
          this counter by monitoring the
          tn3270eTcpConnActivationTime object."
      ::= { tn3270eTcpConnEntry 9 }

  tn3270eTcpConnResourceElement OBJECT-TYPE
      SYNTAX   SnaResourceName
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "LU/Print secondary name for connecting an client
           into an SNA network."
      ::= { tn3270eTcpConnEntry 10 }




White & Moore               Standards Track                    [Page 42]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


  tn3270eTcpConnResourceType OBJECT-TYPE
      SYNTAX   IANATn3270ResourceType
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "Indicates the type of resource identified by
           tn3270eTcpConnResourceElement."
      ::= { tn3270eTcpConnEntry 11 }

  tn3270eTcpConnDeviceType OBJECT-TYPE
      SYNTAX   IANATn3270DeviceType
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "Indicates the device type if negotiated with the
          client.  A value of unknown(100) should be used as
          the value of this object when a device type is not
          negotiated.  Refer to RFC 2355 for how device types
          can be negotiated."
      ::= { tn3270eTcpConnEntry 12 }

  tn3270eTcpConnFunctions OBJECT-TYPE
      SYNTAX   IANATn3270Functions
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "This object indicates which of the TN3270 and TN3270E
          functions were negotiated by the server and the client
          for this TCP connection.

          Refer to tn3270eSrvrFunctionsSupported for the list of
          these functions supported by the server."
      ::= { tn3270eTcpConnEntry 13 }

  tn3270eTcpConnId OBJECT-TYPE
      SYNTAX      Unsigned32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The connection identifier associated with a TN3270 or
           a TN3270E session's TCP connection.  TCP implementations
           often assign a unique (with respect to itself) unsigned
           integer as an identifier for a TCP connection.

           The value 0 indicates that a connection does not have
           a valid connection identifier."
      ::= { tn3270eTcpConnEntry 14 }




White & Moore               Standards Track                    [Page 43]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


  tn3270eTcpConnClientIdFormat OBJECT-TYPE
      SYNTAX      IANATn3270eClientType
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The format of a corresponding tn3270eTcpConnClientId
          object as defined by the IANSTn3270eClientType textual
          convention imported from the IANATn3270eTC-MIB."
      ::= { tn3270eTcpConnEntry 15 }

  tn3270eTcpConnClientId OBJECT-TYPE
      SYNTAX      OCTET STRING (SIZE (0..512))
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "Additional client identification information.  The
          type of this information is indicated by the value of
          the corresponding tn3270eTcpConnClientIdFormat object.
          All values are returned in network-byte order.

          The purpose of this object is to provide an alternate
          means of identifying a client, other than though the
          remote address returned in tn3270eTcpConnRemAddress."
      ::= { tn3270eTcpConnEntry 16 }

  tn3270eTcpConnTraceData OBJECT-TYPE
      SYNTAX   Tn3270eTraceData
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "Trace data for this session."
      ::= { tn3270eTcpConnEntry 17 }

  tn3270eTcpConnLogInfo OBJECT-TYPE
      SYNTAX      IANATn3270eLogData
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "Log information, encoded as specified in the
          IANATn3270eLogData textual convention from the
          IANAtn3270eTC-MIB."
      ::= { tn3270eTcpConnEntry 18 }

  tn3270eTcpConnLuLuBindImage  OBJECT-TYPE
      SYNTAX   OCTET STRING (SIZE (0..256))
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION



White & Moore               Standards Track                    [Page 44]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


          "When there is a currently active LU-LU session for
          this connection, this object returns the BIND Image
          (defined to be bytes 1-p of the complete BIND Request
          Unit -- see 'SNA Formats' for more information)
          that was received from the PLU during session
          activation.  When there is no active LU-LU session,
          or when a BIND image is unavailable for some other
          reason, this object returns a zero-length octet
          string."
      REFERENCE
          "'Systems Network Architecture Formats', IBM
          Publication GA27-3136."
      ::= { tn3270eTcpConnEntry 19 }

  tn3270eTcpConnSnaState  OBJECT-TYPE
      SYNTAX   INTEGER {
                     unknown(1),
                     noSluSession(2),
                     sscpLuSession(3),  -- but no LU-LU session
                     luLuSession(4),    -- but no SSCP-LU session
                     sscpLuSessionAndLuLuSession(5)
                        }
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The current state of the SNA side of the end-to-end
          TN3270 connection.  The following states are defined:

              unknown(1)          - The true state is not known.
              noSluSession(2)     - The SLU has neither an SSCP-LU
                                    nor an LU-LU session active.
              sscpLuSession(3)    - The SSCP-LU session for the SLU
                                    is active, but the SLU is not
                                    currently in session with a PLU.
              luLuSession(4)      - The SLU is currently in session
                                    with a PLU, but the SSCP-LU
                                    session for the LU is not active.
              sscpLuSessionAndLuLuSession(5) - The SLU currently has
                                    an active session with a PLU,
                                    and the SSCP-LU session for the
                                    SLU is active."

      ::= { tn3270eTcpConnEntry 20 }

  tn3270eTcpConnStateLastDiscReason OBJECT-TYPE
      SYNTAX   INTEGER {
                    unknown(1),
                    hostSendsUnbind(2),



White & Moore               Standards Track                    [Page 45]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


                    hostDontAcceptConnection(3),
                    outOfResource(4),
                    clientProtocolError(5),
                    invalidDeviceName(6),
                    deviceInUse(7),
                    inactivityTimeout(8),
                    hostNotResponding(9),
                    clientNotResponding(10),
                    serverClose(11),
                    sysreqLogoff(12),
                    serverSpecificHexCode(13)
                       }
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The last disconnect reason.  A session that has not
          experienced a disconnect shall use the value unknown(1)
          for this object.  Depending on when an implementation
          removes entries from this table, certain states may
          never be returned."
      ::= { tn3270eTcpConnEntry 21 }

  tn3270eTcpConnSrvrConfIndex OBJECT-TYPE
      SYNTAX      Unsigned32 (1..4294967295)
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "tn3270eSrvrConfIndex of the tn3270eSrvrConfEntry
          belonging to the TN3270E server to which this entry
          belongs."
      ::= { tn3270eTcpConnEntry 22 }

  tn3270eTcpConnActivationTime OBJECT-TYPE
      SYNTAX      TimeStamp
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The value of the sysUpTime object the last time
          this TCP connection became active."
      ::= { tn3270eTcpConnEntry 23 }

  tn3270eConfSpinLock OBJECT-TYPE
      SYNTAX      TestAndIncr
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
        "An advisory lock used to allow cooperating
        TN3270E-MIB applications to coordinate their use



White & Moore               Standards Track                    [Page 46]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


        of the tn3270eSrvrConfTable, the tn3270eSrvrPortTable,
        the tn3270eClientGroupTable, the tn3270eResPoolTable,
        and the tn3270eClientResMapTable.

        When creating a new entry or altering an existing entry
        in the any of the tables mentioned above, an application
        should make use of tn3270eRtSpinLock to serialize
        application changes or additions.

        Since this is an advisory lock, the use of this lock is
        not enforced."
      ::= { tn3270eObjects 10 }

  -- Conformance Definitions

  tn3270eGroups      OBJECT IDENTIFIER ::= { tn3270eConformance 1 }

  tn3270eCompliances OBJECT IDENTIFIER ::= { tn3270eConformance 2 }

  -- compliance statements

  tn3270eCompliance MODULE-COMPLIANCE
      STATUS      current
      DESCRIPTION
          "The compliance statement for agents that support the
          TN3270E-MIB."
      MODULE -- this module
          MANDATORY-GROUPS { tn3270eBasicGroup,
                             tn3270eSessionGroup
                           }
          GROUP       tn3270eResMapGroup
          DESCRIPTION
              "This group is optional and provides a method of
              performing tn3270eClientGroup to tn3270eResPool
              mapping."

          GROUP       tn3270eHiCapacityGroup
          DESCRIPTION
              "This group is optional and provides for support
              of high capacity counters."

          OBJECT tn3270eSrvrConfConnectivityChk
             MIN-ACCESS  read-only
             DESCRIPTION
                "The agent is not required to support a set to this
                 object if the associated TN3270E server doesn't
                 support either TIMING-MARK or NOP processing.  In
                 this case an agent should return noCheck on



White & Moore               Standards Track                    [Page 47]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


                 retrieval."

          OBJECT tn3270eSrvrConfTmNopInactTime
             MIN-ACCESS  read-only
             DESCRIPTION
                "The agent is not required to support a set to this
                 object if the functions enabled by
                 tn3270eSrvrConfConnectivityChk are not supported.
                 An agent in this case should return a value of 0."

          OBJECT tn3270eSrvrConfTmNopInterval
             MIN-ACCESS  read-only
             DESCRIPTION
                "The agent is not required to support a set to this
                 object if the functions enabled by
                 tn3270eSrvrConfConnectivityChk are not supported.
                 An agent in this case should return a value of 0."

         OBJECT  tn3270eSrvrConfAdminStatus
             DESCRIPTION
                "A TN3270E server is not required to support a
                 stopImmediate state transition."

          OBJECT tn3270eSrvrConfRowStatus
             MIN-ACCESS read-only
             DESCRIPTION
                 "Write access is not required."

          OBJECT tn3270eSrvrConfTmTimeout
             MIN-ACCESS  read-only
             DESCRIPTION
                "The agent is not required to support a set to this
                 object if the functions enabled by
                 tn3270eSrvrConfConnectivityChk are not supported.
                 An agent in this case should return a value of 0."

          OBJECT tn3270eSrvrPortRowStatus
             MIN-ACCESS read-only
             DESCRIPTION
                 "Write access is not required."

          OBJECT tn3270eClientGroupRowStatus
             MIN-ACCESS read-only
             DESCRIPTION
                 "Write access is not required."

          OBJECT tn3270eResPoolRowStatus
             MIN-ACCESS read-only



White & Moore               Standards Track                    [Page 48]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


             DESCRIPTION
                 "Write access is not required."

          OBJECT tn3270eClientResMapRowStatus
             MIN-ACCESS read-only
             DESCRIPTION
                 "Write access is not required."

      ::= { tn3270eCompliances 1 }

  -- units of conformance

  tn3270eBasicGroup OBJECT-GROUP
      OBJECTS {
          tn3270eSrvrConfInactivityTimeout,
          tn3270eSrvrConfConnectivityChk,
          tn3270eSrvrConfTmNopInactTime,
          tn3270eSrvrConfTmNopInterval,
          tn3270eSrvrFunctionsSupported,
          tn3270eSrvrConfAdminStatus,
          tn3270eSrvrConfOperStatus,
          tn3270eSrvrConfSessionTermState,
          tn3270eSrvrConfSrvrType,
          tn3270eSrvrConfContact,
          tn3270eSrvrConfRowStatus,
          tn3270eSrvrConfLastActTime,
          tn3270eSrvrConfTmTimeout,
          tn3270eSrvrPortRowStatus,
          tn3270eSrvrStatsUpTime,
          tn3270eSrvrStatsMaxTerms,
          tn3270eSrvrStatsInUseTerms,
          tn3270eSrvrStatsSpareTerms,
          tn3270eSrvrStatsMaxPtrs,
          tn3270eSrvrStatsInUsePtrs,
          tn3270eSrvrStatsSparePtrs,
          tn3270eSrvrStatsInConnects,
          tn3270eSrvrStatsConnResrceRejs,
          tn3270eSrvrStatsDisconnects,
          tn3270eSrvrStatsInOctets,
          tn3270eSrvrStatsOutOctets,
          tn3270eSrvrStatsConnErrorRejs,
          tn3270eClientGroupSubnetMask,
          tn3270eClientGroupPfxLength,
          tn3270eClientGroupRowStatus,
          tn3270eSnaMapLocalName,
          tn3270eSnaMapPrimaryLuName,
          tn3270eConfSpinLock
      }



White & Moore               Standards Track                    [Page 49]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


      STATUS  current
      DESCRIPTION
          "This group is mandatory for all hosts supporting the
           TN3270E-MIB."
      ::= { tn3270eGroups 1 }

  tn3270eSessionGroup OBJECT-GROUP
      OBJECTS {
          tn3270eResMapAddrType,
          tn3270eResMapAddress,
          tn3270eResMapPort,
          tn3270eResMapElementType,
          tn3270eResMapSscpSuppliedName,
          tn3270eTcpConnLastActivity,
          tn3270eTcpConnBytesIn,
          tn3270eTcpConnBytesOut,
          tn3270eTcpConnResourceElement,
          tn3270eTcpConnResourceType,
          tn3270eTcpConnDeviceType,
          tn3270eTcpConnFunctions,
          tn3270eTcpConnSrvrConfIndex,
          tn3270eTcpConnActivationTime
        }
      STATUS  current
      DESCRIPTION
          "This group is mandatory for all hosts supporting the
           TN3270E-MIB."
      ::= { tn3270eGroups 2 }

  tn3270eResMapGroup OBJECT-GROUP
      OBJECTS {
          tn3270eResPoolElementType,
          tn3270eResPoolRowStatus,
          tn3270eClientResMapRowStatus,
          tn3270eTcpConnId,
          tn3270eTcpConnClientIdFormat,
          tn3270eTcpConnClientId,
          tn3270eTcpConnTraceData,
          tn3270eTcpConnLogInfo,
          tn3270eTcpConnLuLuBindImage,
          tn3270eTcpConnSnaState,
          tn3270eTcpConnStateLastDiscReason
        }
      STATUS  current
      DESCRIPTION
          "This group is optional for all hosts supporting the
           TN3270E-MIB."
      ::= { tn3270eGroups 3 }



White & Moore               Standards Track                    [Page 50]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


  tn3270eHiCapacityGroup OBJECT-GROUP
      OBJECTS {
          tn3270eSrvrStatsHCInOctets,
          tn3270eSrvrStatsHCOutOctets
        }
      STATUS  current
      DESCRIPTION
           "Support of these objects is REQUIRED when the
           Counter32 versions can potentially wrap too
           frequently.  This group is optional for all other
           hosts supporting the TN3270E-MIB.

           The IF-MIB (RFC 2233) requires that the 64-bit
           versions of its counters be implemented when an
           interface can support rates of around 20 million
           bits per second or greater.  This implies a minimum
           wrap rate of just over 28 minutes.  It is recommended
           that this same guideline be used for determining
           whether an implementation implements these objects.

           This group contains two objects with the syntax
           Counter64.  An implementation that doesn't support
           these objects should return noSuchObject, since
           returning a zero is misleading."

      ::= { tn3270eGroups 4 }

  END

5.0  Security Considerations

   Certain management information defined in this MIB may be considered
   sensitive in some network environments.  Therefore, authentication of
   received SNMP requests and controlled access to management
   information SHOULD be employed in such environments.  An
   authentication protocol is defined in [12].  A protocol for access
   control is defined in [15].

   Several objects in this MIB allow write access or provide for row
   creation.  Allowing this support in a non-secure environment can have
   a negative effect on network operations.  It is RECOMMENDED that
   implementers seriously consider whether set operations or row
   creation should be allowed without providing, at a minimum,
   authentication of request origin.  It is RECOMMENDED that without
   such support, the following objects be implemented as read-only:






White & Moore               Standards Track                    [Page 51]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


   o   tn3270eSrvrConfInactivityTimout
   o   tn3270eSrvrConfConnectivityChk
   o   tn3270eSrvrConfActivityTimeout
   o   tn3270eSrvrConfActivityInterval
   o   tn3270eSrvrConfAdminStatus
   o   tn3270eSrvrConfSessionTermState
   o   tn3270eSrvrConfContact
   o   tn3270eClientGroupSubnetMask
   o   tn3270eResPoolElementType
   o   tn3270eSrvrConfRowStatus
   o   tn3270eSrvrPortRowStatus
   o   tn3270eClientGroupRowStatus
   o   tn3270eResPoolRowStatus
   o   tn3270eResMapRowStatus

   For all tables in the MIB except the tn3270eTcpConnTable, the first
   index identifies an individual TN3270E server.  This makes it easy to
   implement an access control policy under which different principals
   have access to objects related to different servers.  Implementation
   of such a policy is not possible for the entries in the
   tn3270eTcpConTable.

6.0  Intellectual Property

   The IETF takes no position regarding the validity or scope of any
   intellectual property or other rights that might be claimed to
   pertain to the implementation or use of the technology described in
   this document or the extent to which any license under such rights
   might or might not be available; neither does it represent that it
   has made any effort to identify any such rights.  Information on the
   IETF's procedures with respect to rights in standards-track and
   standards-related documentation can be found in BCP-11.  Copies of
   claims of rights made available for publication and any assurances of
   licenses to be made available, or the result of an attempt made to
   obtain a general license or permission for the use of such
   proprietary rights by implementers or users of this specification can
   be obtained from the IETF Secretariat.

   The IETF invites any interested party to bring to its attention any
   copyrights, patents or patent applications, or other proprietary
   rights which may cover technology that may be required to practice
   this standard.  Please address the information to the IETF Executive
   Director.








White & Moore               Standards Track                    [Page 52]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


7.0  Acknowledgments

   This document is a product of the TN3270E Working Group.  Thanks to
   Randy Presuhn of BMC Software for his valuable review comments on
   several versions of the document.

8.0  References

   [1]  Harrington D., Presuhn, R. and B. Wijnen, "An Architecture for
        Describing SNMP Management Frameworks", RFC 2271, January 1998.

   [2]  Rose, M. and K. McCloghrie, "Structure and Identification of
        Management Information for TCP/IP-based Internets", STD 16, RFC
        1155, May 1990

   [3]  Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16,
        RFC 1212, March 1991.

   [4]  Rose, M., "A Convention for Defining Traps for use with the
        SNMP", RFC 1215, Performance Systems International, March 1991

   [5]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Structure
        of Management Information for Version 2 of the Simple Network
        Management Protocol (SNMPv2)", RFC 1902, January 1996.

   [6]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Textual
        Conventions for Version 2 of the Simple Network Management
        Protocol (SNMPv2)", RFC 1903, January 1996.

   [7]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
        "Conformance Statements for Version 2 of the Simple Network
        Management Protocol (SNMPv2)", RFC 1904, January 1996.

   [8]  Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple
        Network Management Protocol", STD 15, RFC 1157, May 1990.

   [9]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
        "Introduction to Community-based SNMPv2", RFC 1901, January
        1996.

   [10] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport
        Mappings for Version 2 of the Simple Network Management Protocol
        (SNMPv2)", RFC 1906, January 1996.

   [11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message
        Processing and Dispatching for the Simple Network Management
        Protocol (SNMP)", RFC 2272, January 1998.




White & Moore               Standards Track                    [Page 53]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


   [12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)
        for version 3 of the Simple Network Management Protocol
        (SNMPv3)", RFC 2274, January 1998.

   [13] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol
        Operations for Version 2 of the Simple Network Management
        Protocol (SNMPv2)", RFC 1905, January 1996.

   [14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC
        2273, January 1998.

   [15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access
        Control Model (VACM) for the Simple Network Management Protocol
        (SNMP)", RFC 2275, January 1998.

   [16] Postel, J. and J. Reynolds, "Telnet Protocol Specification", STD
        8, RFC 854, May 1983.

   [17] Postel, J. and J. Reynolds, "Telnet Timing Mark Option", STD 31,
        RFC 860, May 1983.

   [18] Rekhter, J., "Telnet 3270 Regime Option", RFC 1041, January
        1988.

   [19] Kelly, B., "TN3270 Enhancements", RFC 2355, June 1998.

        [20] McCloghrie, K., "TCP-MIB Definitions", RFC 2012, November
        1996.

   [21] Hovey, R. and S. Bradner, "The Organizations Involved in the
        IETF Standards Process", BCP 11, RFC 2028, October 1996.

   [22] Bradner, S., "Key words for use in RFCs to Indicate Requirement
        Levels", BCP 14, RFC 2119, March 1997.

   [23] Hinden, R. and S. Deering, "IP Version 6 Addressing
        Architecture", RFC 2373, July 1998.

   [24] Krupczak, C. and J. Saperia, "Definitions of System-Level
        Managed Objects for Applications", RFC 2287, February 1998.











White & Moore               Standards Track                    [Page 54]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


9.0  Authors' Addresses

   Kenneth D. White
   Dept. BRQA/Bldg. 501/G114
   IBM Corporation
   P.O.Box 12195
   3039 Cornwallis
   Research Triangle Park, NC 27709, USA

   EMail: kennethw@vnet.ibm.com


   Robert Moore
   Dept. BRQA/Bldg. 501/G114
   IBM Corporation
   P.O.Box 12195
   3039 Cornwallis
   Research Triangle Park, NC 27709, USA

   Phone: +1-919-254-4436
   EMail: remoore@us.ibm.com






























White & Moore               Standards Track                    [Page 55]

RFC 2561                TN3270E Using SMIv2 MIB               April 1999


Full Copyright Statement

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
























White & Moore               Standards Track                    [Page 56]