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Network Working Group                                            J. Case
Request for Comments: 1285                   SNMP Research, Incorporated
                                                            January 1992


                    FDDI Management Information Base

Status of this Memo

   This memo is an extension to the SNMP MIB.  This RFC specifies an IAB
   standards track protocol for the Internet community, and requests
   discussion and suggestions for improvements.  Please refer to the
   current edition of the "IAB Official Protocol Standards" for the
   standardization state and status of this protocol.  Distribution of
   this memo is unlimited.

Table of Contents

   1. Abstract ..............................................    1
   2. The Network Management Framework.......................    1
   3. Objects ...............................................    2
   3.1 Format of Definitions ................................    2
   4. Overview ..............................................    3
   4.1 Textual Conventions ..................................    3
   5. Object Definitions ....................................    4
   5.1 The SMT Group ........................................    5
   5.2 The MAC Group ........................................   15
   5.3 The PATH Group .......................................   27
   5.4 The PORT Group .......................................   27
   5.5 The ATTACHMENT Group .................................   38
   5.6 The Chip Set Group ...................................   42
   6. Acknowledgements ......................................   43
   7. References ............................................   45
   Security Considerations...................................   46
   Author's Address..........................................   46

1.  Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in TCP/IP-based internets.
   In particular, it defines objects for managing devices which
   implement the FDDI.

2.  The Network Management Framework

   The Internet-standard Network Management Framework consists of three
   components.  They are:




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      RFC 1155 which defines the SMI, the mechanisms used for describing
      and naming objects for the purpose of management.  RFC 1212
      defines a more concise description mechanism, which is wholly
      consistent with the SMI.

      RFC 1156 which defines MIB-I, the core set of managed objects for
      the Internet suite of protocols.  RFC 1213, defines MIB-II, an
      evolution of MIB-I based on implementation experience and new
      operational requirements.

      RFC 1157 which defines the SNMP, the protocol used for network
      access to managed objects.

   The Framework permits new objects to be defined for the purpose of
   experimentation and evaluation.

3.  Objects

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the subset of Abstract Syntax Notation One (ASN.1) [5]
   defined in the SMI.  In particular, each object has a name, a syntax,
   and an encoding.  The name is an object identifier, an
   administratively assigned name, which specifies an object type.  The
   object type together with an object instance serves to uniquely
   identify a specific instantiation of the object.  For human
   convenience, we often use a textual string, termed the OBJECT
   DESCRIPTOR, to also refer to the object type.

   The syntax of an object type defines the abstract data structure
   corresponding to that object type.  The ASN.1 language is used for
   this purpose.  However, the SMI [1] purposely restricts the ASN.1
   constructs which may be used.  These restrictions are explicitly made
   for simplicity.

   The encoding of an object type is simply how that object type is
   represented using the object type's syntax.  Implicitly tied to the
   notion of an object type's syntax and encoding is how the object type
   is represented when being transmitted on the network.

   The SMI specifies the use of the basic encoding rules of ASN.1 [6],
   subject to the additional requirements imposed by the SNMP.

3.1.  Format of Definitions

   Section 5 contains contains the specification of all object types
   contained in this MIB module.  The object types are defined using the
   conventions defined in the SMI, as amended by the extensions



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   specified in [7].

4.  Overview

   This document defines the managed objects for FDDI devices which are
   to be accessible via the Simple Network Management Protocol (SNMP).
   At present, this applies to these values of the ifType variable in
   the Internet-standard MIB:

               fddi(15)

   For these interfaces, the value of the ifSpecific variable in the
   MIB-II [4] has the OBJECT IDENTIFIER value:

               fddi    OBJECT IDENTIFIER ::= { transmission 15 }

   The definitions of the objects presented here draws heavily from
   related work in the ANSI X3T9.5 committee and the SMT subcommittee of
   that committee [8].  In fact, the definitions of the managed objects
   in this document are, to the maximum extent possible, identical to
   those identified by the ANSI committee.  The semantics of each
   managed object should be the same with syntactic changes made as
   necessary to recast the objects in terms of the Internet-standard SMI
   and MIB so as to be compatible with the SNMP.  Examples of these
   syntactic changes include remapping booleans to enumerated integers,
   remapping bit strings to octet strings, and the like.  In addition,
   the naming of the objects was changed to achieve compatibility.

   These minimal syntactic changes with no semantic changes should allow
   implementations of SNMP manageable FDDI systems to share
   instrumentation with other network management schemes and thereby
   minimize implementation cost.  In addition, the translation of
   information conveyed by managed objects from one network management
   scheme to another is eased by these shared definitions.

   Only the essential variables, as indicated by their mandatory status
   in the ANSI specification were retained in this document.  The
   importance of variables which have an optional status in the ANSI
   specification were perceived as being less widely accepted.

4.1.  Textual Conventions

   Several new datatypes are introduced as a textual convention in this
   MIB document.  These textual conventions enhance the readability of
   the document and ease comparisons with its ANSI counterpart.  It
   should be noted that the introduction of the following textual
   conventions has no effect on either the syntax nor the semantics of
   any managed objects.  The use of these is merely an artifact of the



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   explanatory method used.  Objects defined in terms of one of these
   methods are always encoded by means of the rules that define the
   primitive type.  Hence, no changes to the SMI or the SNMP are
   necessary to accommodate these textual conventions which are adopted
   merely for the convenience of readers and writers in pursuit of the
   elusive goal of clear, concise, and unambiguous MIB documents.

5.  Object Definitions

          RFC1285-MIB DEFINITIONS ::= BEGIN

          IMPORTS
                  Counter
                      FROM RFC1155-SMI
                  transmission
                      FROM RFC1213-MIB
                  OBJECT-TYPE
                      FROM RFC-1212;

          --  This MIB module uses the extended OBJECT-TYPE macro as
          --  defined in [7].


          -- this is the FDDI MIB module

          fddi    OBJECT IDENTIFIER ::= { transmission 15 }


          -- textual conventions

          FddiTime ::= INTEGER (0..2147483647)
          -- This data type specifies octet units of 80 nanoseconds as
          -- an integer value.  It is used for Path Latency  and
          -- Synchronous Bandwidth values.  The encoding is normal
          -- integer representation (not twos complement).

          FddiResourceId ::= INTEGER (0..65535)
          -- This data type is used to refer to an instance of a  MAC,
          -- PORT, PATH, or ATTACHMENT Resource ID.  Indexing begins
          -- at 1.  Zero is used to indicate the absence of a resource.

          FddiSMTStationIdType ::= OCTET STRING (SIZE (8))
          -- The unique identifier for the FDDI station.  This is a
          -- string of 8 octets, represented as
          --                                X' yy yy xx xx xx xx xx xx'
          -- with the low order 6 octet (xx) from a unique IEEE
          -- assigned address.  The high order two bits of the IEEE
          -- address, the group address bit and the administration bit



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          -- (Universal/Local) bit should both be zero.  The first two
          -- octets, the yy octets, are implementor-defined.
          --
          -- The representation of the address portion of the station id
          -- is in the IEEE (ANSI/IEEE P802.1A) canonical notation for
          -- 48 bit addresses.  The canonical form is a 6-octet string
          -- where the first octet contains the first 8 bits of the
          -- address, with the I/G(Individual/Group) address bit as the
          -- least significant bit and the  U/L (Universal/Local) bit
          -- as the next more significant bit, and so on.  Note that
          -- addresses in the ANSI FDDI standard SMT frames are
          -- represented in FDDI MAC order.

          FddiMACLongAddressType ::= OCTET STRING (SIZE (6))
          -- The representation of long MAC addresses as management
          -- values is in the IEEE (ANSI/IEEE P802.1A) canonical
          -- notation for 48 bit addresses.  The canonical form is a
          -- 6-octet string where the first octet contains the first 8
          -- bits of the address, with the I/G (Individual/Group)
          -- address bit as the least significant bit and the  U/L
          -- (Universal/Local) bit as the next more significant bit,
          -- and so on.  Note that the addresses in the SMT frames are
          -- represented in FDDI MAC order.

          -- groups in the FDDI MIB module

          snmpFddiSMT        OBJECT IDENTIFIER ::= { fddi 1 }

          snmpFddiMAC        OBJECT IDENTIFIER ::= { fddi 2 }

          snmpFddiPATH       OBJECT IDENTIFIER ::= { fddi 3 }

          snmpFddiPORT       OBJECT IDENTIFIER ::= { fddi 4 }

          snmpFddiATTACHMENT OBJECT IDENTIFIER ::= { fddi 5 }

          snmpFddiChipSets    OBJECT IDENTIFIER ::= { fddi 6 }


          -- the SMT group
          -- Implementation of the SMT group is mandatory for all
          -- systems which implement manageable FDDI subsystems.

          snmpFddiSMTNumber OBJECT-TYPE
              SYNTAX  INTEGER (0..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION



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                      "The number of SMT implementations (regardless of
                      their current state) on this network management
                      application entity.  The value for this variable
                      must remain constant at least from one re-
                      initialization of the entity's network management
                      system to the next re-initialization."
              ::= { snmpFddiSMT  1 }


          -- the SMT table

          snmpFddiSMTTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF SnmpFddiSMTEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "A list of SMT entries.  The number of entries is
                      given by  the value of snmpFddiSMTNumber."
              ::= { snmpFddiSMT  2 }

          snmpFddiSMTEntry OBJECT-TYPE
              SYNTAX  SnmpFddiSMTEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "An SMT entry containing information common to a
                      given SMT."
              INDEX   { snmpFddiSMTIndex }
              ::= { snmpFddiSMTTable 1 }

          SnmpFddiSMTEntry ::=
              SEQUENCE {
                  snmpFddiSMTIndex
                      INTEGER,
                  snmpFddiSMTStationId
                      FddiSMTStationIdType,
                  snmpFddiSMTOpVersionId
                      INTEGER,
                  snmpFddiSMTHiVersionId
                      INTEGER,
                  snmpFddiSMTLoVersionId
                      INTEGER,
                  snmpFddiSMTMACCt
                      INTEGER,
                  snmpFddiSMTNonMasterCt
                      INTEGER,
                  snmpFddiSMTMasterCt
                      INTEGER,



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                  snmpFddiSMTPathsAvailable
                      INTEGER,
                  snmpFddiSMTConfigCapabilities
                      INTEGER,
                  snmpFddiSMTConfigPolicy
                      INTEGER,
                  snmpFddiSMTConnectionPolicy
                      INTEGER,
                  snmpFddiSMTTNotify
                      INTEGER,
                  snmpFddiSMTStatusReporting
                      INTEGER,
                  snmpFddiSMTECMState
                      INTEGER,
                  snmpFddiSMTCFState
                      INTEGER,
                  snmpFddiSMTHoldState
                      INTEGER,
                  snmpFddiSMTRemoteDisconnectFlag
                      INTEGER,
                  snmpFddiSMTStationAction
                      INTEGER
              }

          snmpFddiSMTIndex OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A unique value for each SMT.  Its value ranges
                      between 1 and the value of snmpFddiSMTNumber.  The
                      value for each SMT must remain constant at least
                      from one re-initialization of the entity's network
                      management system to the next re-initialization."
              ::= { snmpFddiSMTEntry 1 }

          snmpFddiSMTStationId OBJECT-TYPE
              SYNTAX  FddiSMTStationIdType -- OCTET STRING (SIZE (8))
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Uniquely identifies an FDDI station."
              REFERENCE
                      "ANSI { fddiSMT 11 }"
              ::= { snmpFddiSMTEntry 2 }






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          snmpFddiSMTOpVersionId OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "The version that this station is using for its
                      operation (refer to ANSI 7.1.2.2)."
              REFERENCE
                      "ANSI { fddiSMT 13 }"
              ::= { snmpFddiSMTEntry 3 }

          snmpFddiSMTHiVersionId OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The highest version of SMT that this station
                      supports (refer to ANSI 7.1.2.2)."
              REFERENCE
                      "ANSI { fddiSMT 14 }"
              ::= { snmpFddiSMTEntry 4 }

          snmpFddiSMTLoVersionId OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The lowest version of SMT that this station
                      supports (refer to ANSI 7.1.2.2)."
              REFERENCE
                      "ANSI { fddiSMT 15 }"
              ::= { snmpFddiSMTEntry 5 }

          snmpFddiSMTMACCt OBJECT-TYPE
              SYNTAX  INTEGER (0..255)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The number of MACs in the station or
                      concentrator."
              REFERENCE
                      "ANSI { fddiSMT 21 }"
              ::= { snmpFddiSMTEntry 6 }

          snmpFddiSMTNonMasterCt OBJECT-TYPE
              SYNTAX  INTEGER (0..2)
              ACCESS  read-only
              STATUS  mandatory



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              DESCRIPTION
                      "The number of Non Master PORTs (A, B, or S PORTs)
                      in the station or concentrator."
              REFERENCE
                      "ANSI { fddiSMT 22 }"
              ::= { snmpFddiSMTEntry 7 }

          snmpFddiSMTMasterCt OBJECT-TYPE
              SYNTAX  INTEGER (0..255)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The number of Master PORTs in a node.  If the
                      node is not a concentrator, the value is zero."
              REFERENCE
                      "ANSI { fddiSMT 23 }"
              ::= { snmpFddiSMTEntry 8 }

          snmpFddiSMTPathsAvailable OBJECT-TYPE
              SYNTAX  INTEGER (0..7)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A value that indicates the PATH types available
                      in the station.

                      The value is a sum.  This value initially takes
                      the value zero, then for each type of PATH that
                      this node has available, 2 raised to a power is
                      added to the sum.  The powers are according to the
                      following table:

                               Path   Power
                            Primary   0
                          Secondary   1
                              Local   2

                      For example, a station having Primary and Local
                      PATHs available would have a value of 5 (2**0 +
                      2**2)."
              REFERENCE
                      "ANSI { fddiSMT 24 }"
              ::= { snmpFddiSMTEntry 9 }

          snmpFddiSMTConfigCapabilities OBJECT-TYPE
              SYNTAX  INTEGER (0..3)
              ACCESS  read-only
              STATUS  mandatory



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              DESCRIPTION
                      "A value that indicates capabilities that are
                      present in the node.  If 'holdAvailable' is
                      present, this indicates support of the optional
                      Hold Function (refer to ANSI SMT 9.4.3.2).  If
                      'CF-Wrap-AB' is present, this indicates that the
                      WRAP_AB state is forced.

                      The value is a sum.  This value initially takes
                      the value zero, then for each of the configuration
                      policies currently enforced on the node, 2 raised
                      to a power is added to the sum.  The powers are
                      according to the following table:

                                 Policy   Power
                          holdAvailable   0
                             CF-Wrap-AB   1 "
              REFERENCE
                      "ANSI { fddiSMT 25 }"
              ::= { snmpFddiSMTEntry 10 }

          snmpFddiSMTConfigPolicy OBJECT-TYPE
              SYNTAX  INTEGER (0..3)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "A value that indicates the configuration policies
                      currently enforced in the node (refer to ANSI SMT
                      9.4.3.2).  The 'configurationHold' policy refers
                      to the Hold flag, and should not be present only
                      if the Hold function is supported.  The 'CF-Wrap-
                      AB' policy refers to the CF_Wrap_AB flag.

                      The value is a sum.  This value initially takes
                      the value zero, then for each of the configuration
                      policies currently enforced on the node, 2 raised
                      to a power is added to the sum.  The powers are
                      according to the following table:

                                     Policy   Power
                          configurationHold   0
                                 CF-Wrap-AB   1 "
              REFERENCE
                      "ANSI { fddiSMT 26 }"
              ::= { snmpFddiSMTEntry 11 }






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          snmpFddiSMTConnectionPolicy OBJECT-TYPE
              SYNTAX  INTEGER (0..65535)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "A value that indicates the connection policies
                      enforced at the station.  A station sets the
                      corresponding policy for each of the connection
                      types that it rejects.  The letter designations, X
                      and Y, in the 'rejectX-Y' names have the following
                      significance:  X represents the PC-Type of the
                      local PORT and Y represents a PC-Neighbor in the
                      evaluation of Connection-Policy (PC-Type, PC-
                      Neighbor) that is done to determine the setting of
                      T-Val(3) in the PC-Signaling sequence (refer to
                      ANSI Section 9.6.3).

                      The value is a sum.  This value initially takes
                      the value zero, then for each of the connection
                      policies currently enforced on the node, 2 raised
                      to a power is added to the sum.  The powers are
                      according to the following table:

                             Policy   Power
                          rejectA-A   0
                          rejectA-B   1
                          rejectA-S   2
                          rejectA-M   3
                          rejectB-A   4
                          rejectB-B   5
                          rejectB-S   6
                          rejectB-M   7
                          rejectS-A   8
                          rejectS-B   9
                          rejectS-S   10
                          rejectS-M   11
                          rejectM-A   12
                          rejectM-B   13
                          rejectM-S   14
                          rejectM-M   15

                      Implementors should note that the polarity of
                      these bits is different in different places in an
                      SMT system.  Implementors should take appropriate
                      care."
              REFERENCE
                      "ANSI { fddiSMT 27 }"
              ::= { snmpFddiSMTEntry 12 }



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          snmpFddiSMTTNotify OBJECT-TYPE
              SYNTAX  INTEGER (2..30)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "The timer used in the Neighbor Notification
                      protocol, reported in seconds and ranging from 2
                      to 30 seconds (refer to ANSI SMT 8.3.1)."
              REFERENCE
                      "ANSI { fddiSMT 29 }"
              ::= { snmpFddiSMTEntry 13 }

          snmpFddiSMTStatusReporting OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Indicates whether the node implements the Status
                      Reporting Protocol.  This object is included for
                      compatibility with products that were designed
                      prior to the adoption of this standard."
              REFERENCE
                      "ANSI { fddiSMT 30 }"
              ::= { snmpFddiSMTEntry 14 }

          snmpFddiSMTECMState OBJECT-TYPE
              SYNTAX  INTEGER {
                          ec0(1), -- Out
                          ec1(2), -- In
                          ec2(3), -- Trace
                          ec3(4), -- Leave
                          ec4(5), -- Path_Test
                          ec5(6), -- Insert
                          ec6(7), -- Check
                          ec7(8)  -- Deinsert
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Indicates the current state of the ECM state
                      machine (refer to ANSI SMT 9.5.2)."
              REFERENCE
                      "ANSI { fddiSMT 41 }"
              ::= { snmpFddiSMTEntry 15 }

          snmpFddiSMTCFState OBJECT-TYPE
              SYNTAX  INTEGER {
                          cf0(1), -- Isolated



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                          cf1(2), -- Wrap_S
                          cf2(3), -- Wrap_A
                          cf3(4), -- Wrap_B
                          cf4(5), -- Wrap_AB
                          cf5(6)  -- Thru
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The attachment configuration for the station or
                      concentrator (refer to ANSI SMT 9.7.4.3)."
              REFERENCE
                      "ANSI { fddiSMT 42 }"
              ::= { snmpFddiSMTEntry 16 }

          snmpFddiSMTHoldState OBJECT-TYPE
              SYNTAX  INTEGER {
                          not-implemented(1), -- holding not implemented
                          not-holding(2),
                          holding-prm(3),     -- holding on primary
                          holding-sec(4)      -- holding on secondary
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "This value indicates the current state of the
                      Hold function.  The values are determined as
                      follows:  'holding-prm' is set if the primary ring
                      is operational and the Recovery Enable Flag is
                      clear (NOT NO_Flag(primary) AND NOT RE_Flag).  is
                      set if the secondary ring is operational and the
                      Recovery Enable Flag is clear (NOT
                      NO_Flag(secondary) AND NOT RE_Flag).  Ref 9.4.3.
                      and 10.3.1.  the primary or secondary, i.e., the
                      Recovery Enable, RE_Flag, is set."
              REFERENCE
                      "ANSI { fddiSMT 43 }"
              ::= { snmpFddiSMTEntry 17 }

          snmpFddiSMTRemoteDisconnectFlag OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A flag indicating that the station was remotely
                      disconnected from the network.  A station requires
                      a Connect Action (SM_CM_CONNECT.request (Connect))
                      to rejoin and clear the flag (refer to ANSI



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                      6.4.5.2)."
              REFERENCE
                      "ANSI { fddiSMT 44 }"
              ::= { snmpFddiSMTEntry 18 }

          snmpFddiSMTStationAction OBJECT-TYPE
              SYNTAX  INTEGER {
                          other(1),           -- none of the following
                          connect(2),
                          disconnect(3),
                          path-Test(4),
                          self-Test(5)
                      }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "This object, when read, always returns a value of
                      other(1).  The behavior of setting this variable
                      to each of the acceptable values is as follows:

                      Other:          Results in a badValue error.

                      Connect:        Generates an
                      SM_CM_Connect.request(connect) signal to CMT
                      indicating that the ECM State machine is to begin
                      a connection sequence.  The
                      fddiSMTRemoteDisconnectFlag is cleared on the
                      setting of this variable to 1.  See ANSI Ref
                      9.3.1.1.

                      Disconnect:     Generates an
                      SM_CM_Connect.request(disconnect) signal to ECM
                      and sets the fddiSMTRemoteDisconnectFlag.  See
                      ANSI Ref 9.3.1.1.

                      Path-Test:      Initiates a station path test.
                      The Path_Test variable (See ANSI Ref. 9.4.1) is
                      set to Testing.  The results of this action are
                      not specified in this standard.

                      Self-Test:      Initiates a station self test.
                      The results of this action are not specified in
                      this standard.

                      Attempts to set this object to all other values
                      results in a badValue error.  Agents may elect to
                      return a badValue error on attempts to set this
                      variable to path-Test(4) or self-Test(5)."



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              REFERENCE
                      "ANSI { fddiSMT 60 }"
              ::= { snmpFddiSMTEntry 19 }


          -- the MAC group
          -- Implementation of the MAC Group is mandatory for all
          -- systems which implement manageable FDDI subsystems.

          snmpFddiMACNumber OBJECT-TYPE
              SYNTAX  INTEGER (0..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The total number of MAC implementations (across
                      all SMTs) on this network management application
                      entity.  The value for this variable must remain
                      constant at least from one re-initialization of
                      the entity's network management system to the next
                      re-initialization."
              ::= { snmpFddiMAC  1 }


          -- the MAC table

          snmpFddiMACTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF SnmpFddiMACEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "A list of MAC entries.  The number of entries is
                      given by the value of snmpFddiMACNumber."
              ::= { snmpFddiMAC  2 }

          snmpFddiMACEntry OBJECT-TYPE
              SYNTAX  SnmpFddiMACEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "A MAC entry containing information common to a
                      given MAC."
              INDEX   { snmpFddiMACSMTIndex, snmpFddiMACIndex }
              ::= { snmpFddiMACTable 1 }

          SnmpFddiMACEntry ::=
              SEQUENCE {
                  snmpFddiMACSMTIndex
                          INTEGER,



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                  snmpFddiMACIndex
                          INTEGER,
                  snmpFddiMACFrameStatusCapabilities
                          INTEGER,
                  snmpFddiMACTMaxGreatestLowerBound
                          FddiTime,
                  snmpFddiMACTVXGreatestLowerBound
                          FddiTime,
                  snmpFddiMACPathsAvailable
                          INTEGER,
                  snmpFddiMACCurrentPath
                          INTEGER,
                  snmpFddiMACUpstreamNbr
                          FddiMACLongAddressType,
                  snmpFddiMACOldUpstreamNbr
                          FddiMACLongAddressType,
                  snmpFddiMACDupAddrTest
                          INTEGER,
                  snmpFddiMACPathsRequested
                          INTEGER,
                  snmpFddiMACDownstreamPORTType
                          INTEGER,
                  snmpFddiMACSMTAddress
                          FddiMACLongAddressType,
                  snmpFddiMACTReq
                          FddiTime,
                  snmpFddiMACTNeg
                          FddiTime,
                  snmpFddiMACTMax
                          FddiTime,
                  snmpFddiMACTvxValue
                          FddiTime,
                  snmpFddiMACTMin
                          FddiTime,
                  snmpFddiMACCurrentFrameStatus
                          INTEGER,
                  snmpFddiMACFrameCts
                          Counter,
                  snmpFddiMACErrorCts
                          Counter,
                  snmpFddiMACLostCts
                          Counter,
                  snmpFddiMACFrameErrorThreshold
                          INTEGER,
                  snmpFddiMACFrameErrorRatio
                          INTEGER,
                  snmpFddiMACRMTState
                          INTEGER,



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                  snmpFddiMACDaFlag
                          INTEGER,
                  snmpFddiMACUnaDaFlag
                          INTEGER,
                  snmpFddiMACFrameCondition
                          INTEGER,
                  snmpFddiMACChipSet
                          OBJECT IDENTIFIER,
                  snmpFddiMACAction
                          INTEGER
              }


          snmpFddiMACSMTIndex OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The value of the SMT index associated with this
                      MAC."
              ::= { snmpFddiMACEntry 1 }

          snmpFddiMACIndex OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A unique value for each MAC on the managed
                      entity.  The MAC identified by a particular value
                      of this index is that identified by the same value
                      of an ifIndex object instance.  That is, if a MAC
                      is associated with the interface whose value of
                      ifIndex in the Internet-Standard MIB is equal to
                      5, then the value of snmpFddiMACIndex shall also
                      equal 5.  The value for each MAC must remain
                      constant at least from one re-initialization of
                      the entity's network management system to the next
                      re-initialization."
              ::= { snmpFddiMACEntry 2 }

          snmpFddiMACFrameStatusCapabilities OBJECT-TYPE
              SYNTAX  INTEGER (0..1799)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A value that indicates the MAC's bridge and end-
                      station capabilities for operating in a bridged
                      FDDI network.



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                      The value is a sum.  This value initially takes
                      the value zero, then for each capability present,
                      2 raised to a power is added to the sum.  The
                      powers are according to the following table:


                           Capability    Power
                           FSC-Type0    0
                           -- MAC repeats A/C indicators as received on
                           -- copying with the intent to forward.

                           FSC-Type1    1
                           -- MAC sets C but not A on copying for
                           -- forwarding.

                           FSC-Type2    2
                           -- MAC resets C and sets A on C set and
                           -- A reset if the frame is not copied and the
                           -- frame was addressed to this MAC

                           FSC-Type0-programmable    8
                           -- Type0 capability is programmable

                           FSC-Type1-programmable    9
                           -- Type1 capability is programmable

                           FSC-Type2-programmable   10
                           -- Type2 capability is programmable
                      "
              REFERENCE
                      "ANSI { fddiMAC 11 }"
              ::= { snmpFddiMACEntry 3 }

          snmpFddiMACTMaxGreatestLowerBound OBJECT-TYPE
              SYNTAX  FddiTime
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "The greatest lower bound of T_Max supported for
                      this MAC."
              REFERENCE
                      "ANSI { fddiMAC 13 }"
              ::= { snmpFddiMACEntry 4 }

          snmpFddiMACTVXGreatestLowerBound OBJECT-TYPE
              SYNTAX  FddiTime
              ACCESS  read-only
              STATUS  mandatory



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RFC 1285                        FDDI MIB                    January 1992


              DESCRIPTION
                      "The greatest lower bound of TVX supported for
                      this MAC."
              REFERENCE
                      "ANSI { fddiMAC 14 }"
              ::= { snmpFddiMACEntry 5 }

          snmpFddiMACPathsAvailable OBJECT-TYPE
              SYNTAX  INTEGER (0..7)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A value that indicates the PATH types available
                      for this MAC.

                      The value is a sum.  This value initially takes
                      the value zero, then for each type of PATH that
                      this MAC has available, 2 raised to a power is
                      added to the sum.  The powers are according to the
                      following table:

                               Path   Power
                            Primary   0
                          Secondary   1
                              Local   2 "
              REFERENCE
                      "ANSI { fddiMAC 22 }"
              ::= { snmpFddiMACEntry 6 }

          snmpFddiMACCurrentPath OBJECT-TYPE
              SYNTAX  INTEGER {
                          unknown(1),
                          primary(2),
                          secondary(4),
                          local(8),
                          isolated(16)
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Indicates the association of the MAC with a
                      station PATH."
              REFERENCE
                      "ANSI { fddiMAC 23 }"
              ::= { snmpFddiMACEntry 7 }

          snmpFddiMACUpstreamNbr OBJECT-TYPE
              SYNTAX  FddiMACLongAddressType -- OCTET STRING (SIZE (6))



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              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The MAC's upstream neighbor's long individual MAC
                      address.  It may be determined by the Neighbor
                      Information Frame protocol (refer to ANSI SMT
                      7.2.1).  The value shall be reported as '00 00 00
                      00 00 00' if it is unknown."
              REFERENCE
                      "ANSI { fddiMAC 24 }"
              ::= { snmpFddiMACEntry 8 }

          snmpFddiMACOldUpstreamNbr OBJECT-TYPE
              SYNTAX  FddiMACLongAddressType -- OCTET STRING (SIZE (6))
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The previous value of the MAC's upstream
                      neighbor's long individual MAC address.  It may be
                      determined by the Neighbor Information Frame
                      protocol (refer to ANSI SMT 7.2.1).  The value
                      shall be reported as '00 00 00 00 00 00' if it is
                      unknown."
              REFERENCE
                      "ANSI { fddiMAC 26 }"
              ::= { snmpFddiMACEntry 9 }

          snmpFddiMACDupAddrTest OBJECT-TYPE
              SYNTAX  INTEGER { none(1), pass(2), fail(3) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The Duplicate Address Test flag, Dup_Addr_Test
                      (refer to ANSI 8.3.1)."
              REFERENCE
                      "ANSI { fddiMAC 29 }"
              ::= { snmpFddiMACEntry 10 }

          snmpFddiMACPathsRequested OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "A value that indicates PATH(s) desired for this
                      MAC.

                      The value is a sum which represents the individual
                      PATHs that are desired.  This value initially



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RFC 1285                        FDDI MIB                    January 1992


                      takes the value zero, then for each type of PATH
                      that this node is, 2 raised to a power is added to
                      the sum.  The powers are according to the
                      following table:

                               Path   Power
                            Primary   0
                          Secondary   1
                              Local   2
                           Isolated   3

                      The precedence order is primary, secondary, local,
                      and then isolated if multiple PATHs are desired
                      are set."
              REFERENCE
                      "ANSI { fddiMAC 32 }"
              ::= { snmpFddiMACEntry 11 }

          snmpFddiMACDownstreamPORTType OBJECT-TYPE
              SYNTAX  INTEGER { a(1), b(2), s(3), m(4), unknown(5) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Indicates the PC-Type of the first port that is
                      downstream of this MAC (the exit port)."
              REFERENCE
                      "ANSI { fddiMAC 33 }"
              ::= { snmpFddiMACEntry 12 }

          snmpFddiMACSMTAddress OBJECT-TYPE
              SYNTAX  FddiMACLongAddressType -- OCTET STRING (SIZE (6))
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The 48 bit individual address of the MAC used for
                      SMT frames."
              REFERENCE
                      "ANSI { fddiMAC 41 }"
              ::= { snmpFddiMACEntry 13 }

          snmpFddiMACTReq OBJECT-TYPE
              SYNTAX  FddiTime
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "The value of T-Req (refer to ANSI MAC 2.2.1 and
                      ANSI MAC 7.3.5.2)."
              REFERENCE



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                      "ANSI { fddiMAC 51 }"
              ::= { snmpFddiMACEntry 14 }

          snmpFddiMACTNeg OBJECT-TYPE
              SYNTAX  FddiTime
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The value of T-Neg (refer to ANSI MAC 2.2.1 and
                      ANSI MAC 7.3.5.2)."
              REFERENCE
                      "ANSI { fddiMAC 52 }"
              ::= { snmpFddiMACEntry 15 }

          snmpFddiMACTMax OBJECT-TYPE
              SYNTAX  FddiTime
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The value of T-Max (refer to ANSI MAC 2.2.1 and
                      ANSI MAC 7.3.5.2)."
              REFERENCE
                      "ANSI { fddiMAC 53 }"
              ::= { snmpFddiMACEntry 16 }

          snmpFddiMACTvxValue OBJECT-TYPE
              SYNTAX  FddiTime
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The value of TvxValue (refer to ANSI MAC 2.2.1
                      and ANSI MAC 7.3.5.2)."
              REFERENCE
                      "ANSI { fddiMAC 54 }"
              ::= { snmpFddiMACEntry 17 }

          snmpFddiMACTMin OBJECT-TYPE
              SYNTAX  FddiTime
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The value of T-Min (refer to ANSI MAC 2.2.1 and
                      ANSI MAC 7.3.5.2)."
              REFERENCE
                      "ANSI { fddiMAC 55 }"
              ::= { snmpFddiMACEntry 18 }





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          snmpFddiMACCurrentFrameStatus OBJECT-TYPE
              SYNTAX  INTEGER (0..7)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "A value that indicates the MAC's operational
                      frame status setting functionality.

                      The value is a sum.  This value initially takes
                      the value zero, then for each functionality
                      present, 2 raised to a power is added to the sum.
                      The powers are according to the following table:

                          Functionality   Power
                              FSC-Type0   0
                              -- MAC repeats A/C indicators as received

                              FSC-Type1   1
                              -- MAC sets C but not A on copying for
                              -- forwarding

                              FSC-Type2   2
                              -- MAC resets C and sets A on C set and A
                              -- reset if frame is not copied
                      "
              REFERENCE
                      "ANSI { fddiMAC 63 }"
              ::= { snmpFddiMACEntry 19 }

          snmpFddiMACFrameCts OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Frame_Ct (refer to ANSI MAC 2.2.1)."
              REFERENCE
                      "ANSI { fddiMAC 71 }"
              ::= { snmpFddiMACEntry 20 }

          snmpFddiMACErrorCts OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Error_Ct (refer to ANSI MAC 2.2.1)."
              REFERENCE
                      "ANSI { fddiMAC 81 }"
              ::= { snmpFddiMACEntry 21 }



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          snmpFddiMACLostCts OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Lost_Ct (refer to ANSI MAC 2.2.1)."
              REFERENCE
                      "ANSI { fddiMAC 82 }"
              ::= { snmpFddiMACEntry 22 }

          snmpFddiMACFrameErrorThreshold OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A threshold for determining when a MAC Condition
                      report should be generated.  The condition is true
                      when the ratio, ((delta snmpFddiMACLostCt + delta
                      snmpFddiMACErrorCt) / (delta snmpFddiMACFrameCt +
                      delta snmpFddiMACLostCt)) x 2**16. exceeds the
                      threshold.  It is used to determine when a station
                      has an unacceptable frame error threshold.  The
                      sampling algorithm is implementation dependent.
                      Any attempt to set this variable to a value of
                      less than one shall result in a badValue error.
                      Those who are familiar with the SNMP management
                      framework will recognize that thresholds are not
                      in keeping with the SNMP philosophy.  However,
                      this variable is supported by underlying SMT
                      implementations already and maintaining this
                      threshold should not pose an undue additional
                      burden on SNMP agent implementors."
              REFERENCE
                      "ANSI { fddiMAC 95 }"
              ::= { snmpFddiMACEntry 23 }

          snmpFddiMACFrameErrorRatio OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "This attribute is the actual ratio, ((delta
                      snmpFddiMACLostCt + delta snmpFddiMACErrorCt) /
                      (delta snmpFddiMACFrameCt + delta
                      snmpFddiMACLostCt)) x 2**16."
              REFERENCE
                      "ANSI { fddiMAC 96 }"
              ::= { snmpFddiMACEntry 24 }



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          snmpFddiMACRMTState OBJECT-TYPE
              SYNTAX  INTEGER {
                          rm0(1), -- Isolated
                          rm1(2), -- Non_Op
                          rm2(3), -- Ring_Op
                          rm3(4), -- Detect
                          rm4(5), -- Non_Op_Dup
                          rm5(6), -- Ring_Op_Dup
                          rm6(7), -- Directed
                          rm7(8)  -- Trace
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Indicates the current state of the Ring
                      Management state machine (refer to ANSI Section
                      10)."
              REFERENCE
                      "ANSI { fddiMAC 111 }"
              ::= { snmpFddiMACEntry 25 }

          snmpFddiMACDaFlag OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The RMT flag Duplicate Address Flag, DA_Flag
                      (refer to ANSI 10.3.1.2)."
              REFERENCE
                      "ANSI { fddiMAC 112 }"
              ::= { snmpFddiMACEntry 26 }

          snmpFddiMACUnaDaFlag OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A flag set when the upstream neighbor reports a
                      duplicate address condition.  Reset when the
                      condition clears."
              REFERENCE
                      "ANSI { fddiMAC 113 }"
              ::= { snmpFddiMACEntry 27 }

          snmpFddiMACFrameCondition OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2) }
              ACCESS  read-only
              STATUS  mandatory



Case                                                           [Page 25]

RFC 1285                        FDDI MIB                    January 1992


              DESCRIPTION
                      "Indicates the MAC Condition is active when set.
                      Cleared when the condition clears and on power
                      up."
              REFERENCE
                      "ANSI { fddiMAC 114 }"
              ::= { snmpFddiMACEntry 28 }

          snmpFddiMACChipSet OBJECT-TYPE
              SYNTAX  OBJECT IDENTIFIER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "This object identifies the hardware chip(s) which
                      is (are) principally responsible for the
                      implementation of the MAC function.  A few OBJECT
                      IDENTIFIERS are identified elsewhere in this memo.
                      For those The assignment of additional OBJECT
                      IDENTIFIERs to various types of hardware chip sets
                      is managed by the IANA.  For example, vendors
                      whose chip sets are not defined in this memo may
                      request a number from the Internet Assigned
                      Numbers Authority (IANA) which indicates the
                      assignment of a enterprise specific subtree which,
                      among other things, may be used to allocate OBJECT
                      IDENTIFIER assignments for that enterprise's chip
                      sets.  Similarly, in the absence of an
                      appropriately assigned OBJECT IDENTIFIER in this
                      memo or in an enterprise specific subtree of a
                      chip vendor, a board or system vendor can request
                      a number for a subtree from the IANA and make an
                      appropriate assignment.  It is desired that,
                      whenever possible, the same OBJECT IDENTIFIER be
                      used for all chips of a given type.  Consequently,
                      the assignment made in this memo for a chip, if
                      any, should be used in preference to any other
                      assignment and the assignment made by the chip
                      manufacturer, if any, should be used in preference
                      to assignments made by users of those chips.  If
                      the hardware chip set is unknown, the object
                      identifier

                      unknownChipSet OBJECT IDENTIFIER ::= { 0 0 }

                      is returned.  Note that unknownChipSet is a
                      syntactically valid object identifier, and any
                      conformant implementation of ASN.1 and the BER
                      must be able to generate and recognize this



Case                                                           [Page 26]

RFC 1285                        FDDI MIB                    January 1992


                      value."
              ::= { snmpFddiMACEntry 29 }

          snmpFddiMACAction OBJECT-TYPE
              SYNTAX  INTEGER {
                          other(1),           -- none of the following
                          enableLLCService(2),
                          disableLLCService(3),
                          connectMAC(4),
                          disconnectMAC(5)
                      }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "This object, when read, always returns a value of
                      other(1).  The behavior of setting this variable
                      to each of the acceptable values is as follows:

                      Other:                  Results in a badValue
                                              error.

                      enableLLCService:       enables MAC service to
                                              higher layers.

                      disableLLCService:      disables MAC service to
                                              higher layers.

                      connectMAC:             connect this MAC in
                                              station.

                      disconnectMAC:          disconnect this MAC in
                                              station.

                      Attempts to set this object to all other values
                      results in a badValue error."
              REFERENCE
                      "ANSI { fddiMAC 130 }"
              ::= { snmpFddiMACEntry 30 }


          -- the PATH group

          -- the PATH group is empty for now and shall remain so until
          -- the ANSI community sorts out their PATH group


          -- the PORT group
          -- Implementation of the PORT group is mandatory for all



Case                                                           [Page 27]

RFC 1285                        FDDI MIB                    January 1992


          -- systems which implement manageable FDDI subsystems.

          snmpFddiPORTNumber OBJECT-TYPE
              SYNTAX  INTEGER (0..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The total number of PORT implementations (across
                      all SMTs) on this network management application
                      entity.  The value for this variable must remain
                      constant at least from one re-initialization of
                      the entity's network management system to the next
                      re-initialization."
              ::= { snmpFddiPORT  1 }


          -- the PORT table

          snmpFddiPORTTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF SnmpFddiPORTEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "A list of PORT entries.  The number of entries is
                      given by the value of snmpFddiPORTNumber."
              ::= { snmpFddiPORT  2 }

          snmpFddiPORTEntry OBJECT-TYPE
              SYNTAX  SnmpFddiPORTEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "A PORT entry containing information common to a
                      given PORT."
              INDEX   { snmpFddiPORTSMTIndex, snmpFddiPORTIndex }
              ::= { snmpFddiPORTTable 1 }

          SnmpFddiPORTEntry ::=
              SEQUENCE {
                  snmpFddiPORTSMTIndex
                          INTEGER,
                  snmpFddiPORTIndex
                          INTEGER,
                  snmpFddiPORTPCType
                          INTEGER,
                  snmpFddiPORTPCNeighbor
                          INTEGER,
                  snmpFddiPORTConnectionPolicies



Case                                                           [Page 28]

RFC 1285                        FDDI MIB                    January 1992


                          INTEGER,
                  snmpFddiPORTRemoteMACIndicated
                          INTEGER,
                  snmpFddiPORTCEState
                          INTEGER,
                  snmpFddiPORTPathsRequested
                          INTEGER,
                  snmpFddiPORTMACPlacement
                          FddiResourceId,
                  snmpFddiPORTAvailablePaths
                          INTEGER,
                  snmpFddiPORTMACLoopTime
                          FddiTime,
                  snmpFddiPORTTBMax
                          FddiTime,
                  snmpFddiPORTBSFlag
                          INTEGER,
                  snmpFddiPORTLCTFailCts
                          Counter,
                  snmpFddiPORTLerEstimate
                          INTEGER,
                  snmpFddiPORTLemRejectCts
                          Counter,
                  snmpFddiPORTLemCts
                          Counter,
                  snmpFddiPORTLerCutoff
                          INTEGER,
                  snmpFddiPORTLerAlarm
                          INTEGER,
                  snmpFddiPORTConnectState
                          INTEGER,
                  snmpFddiPORTPCMState
                          INTEGER,
                  snmpFddiPORTPCWithhold
                          INTEGER,
                  snmpFddiPORTLerCondition
                          INTEGER,
                  snmpFddiPORTChipSet
                          OBJECT IDENTIFIER,
                  snmpFddiPORTAction
                          INTEGER
              }

          snmpFddiPORTSMTIndex OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION



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                      "The value of the SMT index associated with this
                      PORT."
              ::= { snmpFddiPORTEntry 1 }

          snmpFddiPORTIndex OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A unique value for each PORT within a given SMT.
                      Its value ranges between 1 and the sum of the
                      values of snmpFddiSMTNonMasterCt
                      { snmpFddiSMTEntry 6 } and snmpFddiSMTMasterCt
                      { snmpFddiSMTEntry 7 } on the given SMT.  The
                      value for each PORT must remain constant at least
                      from one re-initialization of the entity's network
                      management system to the next re-initialization."
              ::= { snmpFddiPORTEntry 2 }

          snmpFddiPORTPCType OBJECT-TYPE
              SYNTAX  INTEGER { a(1), b(2), s(3), m(4) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "PC_Type (refer to ANSI SMT 9.2.2 and ANSI SMT
                      9.6.3.2)."
              REFERENCE
                      "ANSI { fddiPORT 12 }"
              ::= { snmpFddiPORTEntry 3 }

          snmpFddiPORTPCNeighbor OBJECT-TYPE
              SYNTAX  INTEGER { a(1), b(2), s(3), m(4), unknown(5) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The type (PC_Neighbor) of the remote PORT that is
                      determined in PC_Signaling in R_Val (1,2) (refer
                      to ANSI SMT 9.6.3.2)."
              REFERENCE
                      "ANSI { fddiPORT 13 }"
              ::= { snmpFddiPORTEntry 4 }

          snmpFddiPORTConnectionPolicies OBJECT-TYPE
              SYNTAX  INTEGER (0..7)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "A value that indicates the node's PORT policies.



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                      Pc-MAC-LCT, Pc-MAC-Loop, and Pc-MAC-Placement
                      indicate how the respective PC Signaling
                      Capability flags should  be set (refer to ANSI SMT
                      9.4.3.2).

                      The value is a sum.  This value initially takes
                      the value zero, then for each PORT policy, 2
                      raised to a power is added to the sum.  The powers
                      are according to the following table:

                                    Policy   Power
                                Pc-MAC-LCT   0
                               Pc-MAC-Loop   1
                          Pc-MAC-Placement   2 "
              REFERENCE
                      "ANSI { fddiPORT 14 }"
              ::= { snmpFddiPORTEntry 5 }

          snmpFddiPORTRemoteMACIndicated OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The indication, in PC-Signaling that the remote
                      partner intends to place a MAC in the output token
                      PATH of this PORT.  Signaled as R_Val (9) (refer
                      to ANSI SMT 9.6.3.2)."
              REFERENCE
                      "ANSI { fddiPORT 15 }"
              ::= { snmpFddiPORTEntry 6 }

          snmpFddiPORTCEState OBJECT-TYPE
              SYNTAX  INTEGER {
                          ce0(1), -- Isolated
                          ce1(2), -- Insert_P
                          ce2(3), -- Insert_S
                          ce3(4), -- Insert_X
                          ce4(5)  -- Local
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Indicates the current state of PORT's
                      Configuration Element (CE) (refer to ANSI 9.7.5).
                      Note that this value represents the Current Path
                      information for this PORT."
              REFERENCE
                      "ANSI { fddiPORT 16 }"



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              ::= { snmpFddiPORTEntry 7 }

          snmpFddiPORTPathsRequested OBJECT-TYPE
              SYNTAX  INTEGER (0..15)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "A value that indicates the desired association(s)
                      of the port with a station PATH.  The 'Primary'
                      Path is the default.  The value of 'Secondary' is
                      only meaningful for S (slave) or M (master) PORT
                      PC-Types.  This value effects the setting of the
                      CF_Insert_S, and CF_Insert_L flags (refer to ANSI
                      Section 9.4.3).  If the 'Primary' PATH is present,
                      then the Primary PATH (the default PATH) is
                      selected.  If the 'Secondary' PATH is present and
                      the 'Primary' PATH is not present, then the
                      CF_Insert_S flag is set.  If the 'Local' PATH is
                      sent and neither the 'Primary' or 'Secondary'
                      PATHs are sent, then the CF_Insert_L flag is set.

                      The value is a sum.  This value initially takes
                      the value zero, then for each type of PATH
                      desired, 2 raised to a power is added to the sum.
                      The powers are according to the following table:

                               Path   Power
                            Primary   0
                          Secondary   1
                              Local   2
                           Isolated   3 "
              REFERENCE
                      "ANSI { fddiPORT 17 }"
              ::= { snmpFddiPORTEntry 8 }

          snmpFddiPORTMACPlacement OBJECT-TYPE
              SYNTAX  FddiResourceId -- INTEGER (0..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Indicates the upstream MAC, if any, that is
                      associated with the PORT.  The value shall be zero
                      if there is no MAC associated with the PORT.
                      Otherwise, the value shall be equal to the value
                      of snmpFddiMACIndex associated with the MAC."
              REFERENCE
                      "ANSI { fddiPORT 18 }"
              ::= { snmpFddiPORTEntry 9 }



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          snmpFddiPORTAvailablePaths OBJECT-TYPE
              SYNTAX  INTEGER (0..7)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A value that indicates the PATH types available
                      for M and S PORTs.

                      The value is a sum.  This value initially takes
                      the value zero, then for each type of PATH that
                      this port has available, 2 raised to a power is
                      added to the sum.  The powers are according to the
                      following table:

                               Path   Power
                            Primary   0
                          Secondary   1
                              Local   2 "
              REFERENCE
                      "ANSI { fddiPORT 19 }"
              ::= { snmpFddiPORTEntry 10 }

          snmpFddiPORTMACLoopTime OBJECT-TYPE
              SYNTAX  FddiTime
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "Time for the optional MAC Local Loop, T_Next(9),
                      which is greater-than or equal-to 200 milliseconds
                      (refer to ANSI SMT 9.4.4.2.3)."
              REFERENCE
                      "ANSI { fddiPORT 21 }"
              ::= { snmpFddiPORTEntry 11 }

          snmpFddiPORTTBMax OBJECT-TYPE
              SYNTAX  FddiTime
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "TB_Max (refer to ANSI SMT 9.4.4.2.1)."
              REFERENCE
                      "ANSI { fddiPORT 32 }"
              ::= { snmpFddiPORTEntry 12 }

          snmpFddiPORTBSFlag OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2) }
              ACCESS  read-only
              STATUS  mandatory



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              DESCRIPTION
                      "The Break State, BS_Flag (refer to ANSI SMT
                      9.4.3.4)."
              REFERENCE
                      "ANSI { fddiPORT 33 }"
              ::= { snmpFddiPORTEntry 13 }

          snmpFddiPORTLCTFailCts OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The count of the consecutive times the link
                      confidence test (LCT) has failed during connection
                      management (refer to ANSI 9.4.1)."
              REFERENCE
                      "ANSI { fddiPORT 42 }"
              ::= { snmpFddiPORTEntry 14 }

          snmpFddiPORTLerEstimate OBJECT-TYPE
              SYNTAX  INTEGER (4..15)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A long term average link error rate.  It ranges
                      from 10**-4 to 10**-15 and is reported as the
                      absolute value of the exponent of the estimate."
              REFERENCE
                      "ANSI { fddiPORT 51 }"
              ::= { snmpFddiPORTEntry 15 }

          snmpFddiPORTLemRejectCts OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A link error monitoring count of the times that a
                      link has been rejected."
              REFERENCE
                      "ANSI { fddiPORT 52 }"
              ::= { snmpFddiPORTEntry 16 }

          snmpFddiPORTLemCts OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The aggregate link error monitor error count, set



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                      to zero only on station power_up."
              REFERENCE
                      "ANSI { fddiPORT 53 }"
              ::= { snmpFddiPORTEntry 17 }

          snmpFddiPORTLerCutoff OBJECT-TYPE
              SYNTAX  INTEGER (4..15)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "The link error rate estimate at which a link
                      connection will be broken.  It ranges from 10**-4
                      to 10**-15 and is reported as the absolute value
                      of the exponent."
              REFERENCE
                      "ANSI { fddiPORT 58 }"
              ::= { snmpFddiPORTEntry 18 }

          snmpFddiPORTLerAlarm OBJECT-TYPE
              SYNTAX  INTEGER (4..15)
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "The link error rate estimate at which a link
                      connection will generate an alarm.  It ranges from
                      10**-4 to 10**-15 and is reported as the absolute
                      value of the exponent of the estimate."
              REFERENCE
                      "ANSI { fddiPORT 59 }"
              ::= { snmpFddiPORTEntry 19 }

          snmpFddiPORTConnectState OBJECT-TYPE
              SYNTAX  INTEGER {
                          disabled(1),
                          connecting(2),
                          standby(3),
                          active(4)
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "An indication of the connect state of this PORT.
                      Basically, this gives a higher level view of the
                      state of the connection by grouping PCM states and
                      the PC-Withhold flag state.  The supported values
                      and their corresponding PCM states and PC-Withhold
                      condition, when relevant, are:




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                        disabled: (PC0:Off, PC9:Maint)

                      connecting: (PC1(Break) || PC3 (Connect) || PC4
                      (Next)                 || PC5 (Signal) || PC6
                      (Join) || PC7 (Verify))             &&
                      (PC_Withhold = None)

                         standby: (NOT PC_Withhold == None)

                          active: (PC2:Trace || PC8:Active) "
              REFERENCE
                      "ANSI { fddiPORT 61 }"
              ::= { snmpFddiPORTEntry 20 }

          snmpFddiPORTPCMState OBJECT-TYPE
              SYNTAX  INTEGER {
                          pc0(1), -- Off
                          pc1(2), -- Break
                          pc2(3), -- Trace
                          pc3(4), -- Connect
                          pc4(5), -- Next
                          pc5(6), -- Signal
                          pc6(7), -- Join
                          pc7(8), -- Verify
                          pc8(9), -- Active
                          pc9(10) -- Maint
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "(refer to SMT 9.6.2)."
              REFERENCE
                      "ANSI { fddiPORT 62 }"
              ::= { snmpFddiPORTEntry 21 }

          snmpFddiPORTPCWithhold OBJECT-TYPE
              SYNTAX  INTEGER { none(1), m-m(2), other(3) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "PC_Withhold, (refer to ANSI SMT 9.4.1)."
              REFERENCE
                      "ANSI { fddiPORT 63 }"
              ::= { snmpFddiPORTEntry 22 }

          snmpFddiPORTLerCondition OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2) }
              ACCESS  read-only



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              STATUS  mandatory
              DESCRIPTION
                      "This variable is set to true whenever LerEstimate
                      is less than or equal to LerAlarm."
              REFERENCE
                      "ANSI { fddiPORT 64 }"
              ::= { snmpFddiPORTEntry 23 }

          snmpFddiPORTChipSet OBJECT-TYPE
              SYNTAX  OBJECT IDENTIFIER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "This object identifies the hardware chip(s) which
                      is (are) principally responsible for the
                      implementation of the PORT (PHY) function.  A few
                      OBJECT IDENTIFIERS are identified elsewhere in
                      this memo.  For those The assignment of additional
                      OBJECT IDENTIFIERs to various types of hardware
                      chip sets is managed by the IANA.  For example,
                      vendors whose chip sets are not defined in this
                      memo may request a number from the Internet
                      Assigned Numbers Authority (IANA) which indicates
                      the assignment of a enterprise specific subtree
                      which, among other things, may be used to allocate
                      OBJECT IDENTIFIER assignments for that
                      enterprise's chip sets.  Similarly, in the absence
                      of an appropriately assigned OBJECT IDENTIFIER in
                      this memo or in an enterprise specific subtree of
                      a chip vendor, a board or system vendor can
                      request a number for a subtree from the IANA and
                      make an appropriate assignment.  It is desired
                      that, whenever possible, the same OBJECT
                      IDENTIFIER be used for all chips of a given type.
                      Consequently, the assignment made in this memo for
                      a chip, if any, should be used in preference to
                      any other assignment and the assignment made by
                      the chip manufacturer, if any, should be used in
                      preference to assignments made by users of those
                      chips.  If the hardware chip set is unknown, the
                      object identifier

                      unknownChipSet OBJECT IDENTIFIER ::= { 0 0 }

                      is returned.  Note that unknownChipSet is a
                      syntactically valid object identifier, and any
                      conformant implementation of ASN.1 and the BER
                      must be able to generate and recognize this



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                      value."
              ::= { snmpFddiPORTEntry 24 }

          snmpFddiPORTAction OBJECT-TYPE
              SYNTAX  INTEGER {
                          other(1),           -- none of the following
                          maintPORT(2),
                          enablePORT(3),
                          disablePORT(4),
                          startPORT(5),
                          stopPORT(6)
                      }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "This object, when read, always returns a value of
                      other(1).  The behavior of setting this variable
                      to each of the acceptable values is as follows:

                      Other:          Results in a badValue error.

                      maintPORT:      Signal PC_Maint

                      enablePORT:     Signal PC_Enable

                      disablePORT:    Signal PC_Disable

                      startPORT:      Signal PC_Start

                      stopPORT:       Signal PC_Stop

                      Signals cause an SM_CM_CONTROL.request service to
                      be generated with a control_action of `Signal' and
                      the `variable' parameter set with the appropriate
                      value (i.e., PC_Maint, PC_Enable, PC_Disable,
                      PC_Start, PC_Stop).  Ref. ANSI SMT Section 9.3.2.

                      Attempts to set this object to all other values
                      results in a badValue error."
              REFERENCE
                      "ANSI { fddiPORT 70 }"
              ::= { snmpFddiPORTEntry 25 }


          -- the ATTACHMENT group
          -- Implementation of the ATTACHMENT group is mandatory for
          -- all systems which implement manageable FDDI subsystems.




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          snmpFddiATTACHMENTNumber OBJECT-TYPE
              SYNTAX  INTEGER (0..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The total number of attachments (across all SMTs)
                      on this network management application entity.
                      The value for this variable must remain constant
                      at least from one re-initialization of the
                      entity's network management system to the next
                      re-initialization."
              ::= { snmpFddiATTACHMENT  1 }


          -- the ATTACHMENT table

          snmpFddiATTACHMENTTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF SnmpFddiATTACHMENTEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "A list of ATTACHMENT entries.  The number of
                      entries is given by the value of
                      snmpFddiATTACHMENTNumber."
              ::= { snmpFddiATTACHMENT  2 }

          snmpFddiATTACHMENTEntry OBJECT-TYPE
              SYNTAX  SnmpFddiATTACHMENTEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "An ATTACHMENT entry containing information common
                      to a given set of ATTACHMENTs.

                      The ATTACHMENT Resource represents a PORT or a
                      pair of PORTs plus the optional associated optical
                      bypass that are managed as a functional unit.
                      Because of its relationship to the PORT Objects,
                      there is a natural association of ATTACHMENT
                      Resource Indices to the PORT Indices.  The
                      resource index for the ATTACHMENT is equal to the
                      associated PORT index for 'single-attachment' and
                      'concentrator' type snmpFddiATTACHMENTClasses.
                      For 'dual-attachment' Classes, the ATTACHMENT
                      Index is the PORT Index of the A PORT of the A/B
                      PORT Pair that represents the ATTACHMENT."
              INDEX   { snmpFddiATTACHMENTSMTIndex,
                                             snmpFddiATTACHMENTIndex }



Case                                                           [Page 39]

RFC 1285                        FDDI MIB                    January 1992


              ::= { snmpFddiATTACHMENTTable 1 }

          SnmpFddiATTACHMENTEntry ::=
              SEQUENCE {
                  snmpFddiATTACHMENTSMTIndex
                          INTEGER,
                  snmpFddiATTACHMENTIndex
                          INTEGER,
                  snmpFddiATTACHMENTClass
                          INTEGER,
                  snmpFddiATTACHMENTOpticalBypassPresent
                          INTEGER,
                  snmpFddiATTACHMENTIMaxExpiration
                          FddiTime,
                  snmpFddiATTACHMENTInsertedStatus
                          INTEGER,
                  snmpFddiATTACHMENTInsertPolicy
                          INTEGER
              }

          snmpFddiATTACHMENTSMTIndex OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The value of the SMT index associated with this
                      ATTACHMENT."
              ::= { snmpFddiATTACHMENTEntry 1 }

          snmpFddiATTACHMENTIndex OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A unique value for each ATTACHMENT on a given
                      SMT.  Its value ranges between 1 and the sum of
                      the values of snmpFddiSMTNonMasterCt {
                      snmpFddiSMTEntry 6 } and snmpFddiSMTMasterCt {
                      snmpFddiSMTEntry 7 } on the given SMT.  The value
                      for each ATTACHMENT must remain constant at least
                      from one re-initialization of the entity's network
                      management system to the next re-initialization."
              ::= { snmpFddiATTACHMENTEntry 2 }

          snmpFddiATTACHMENTClass OBJECT-TYPE
              SYNTAX  INTEGER {
                          single-attachment(1),
                          dual-attachment(2),



Case                                                           [Page 40]

RFC 1285                        FDDI MIB                    January 1992


                          concentrator(3)
                      }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The Attachment class.  This  represents a PORT or
                      a pair of PORTs plus the associated optional
                      optical bypass that are managed as a functional
                      unit.  The PORT associations are the following:

                          single-attachment - S PORTs
                            dual-attachment - A/B PORT Pairs
                               concentrator - M PORTs "
              REFERENCE
                      "ANSI { fddiATTACHMENT 11 }"
              ::= { snmpFddiATTACHMENTEntry 3 }

          snmpFddiATTACHMENTOpticalBypassPresent OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2) }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The value of this value is false for 'single-
                      attachment' and { snmpFddiATTACHMENT 11 }.
                      Correct operation of CMT for single-attachment and
                      concentrator attachments requires that a bypass
                      function must not loopback the network side of the
                      MIC, but only the node side."
              REFERENCE
                      "ANSI { fddiATTACHMENT 12 }"
              ::= { snmpFddiATTACHMENTEntry 4 }

          snmpFddiATTACHMENTIMaxExpiration OBJECT-TYPE
              SYNTAX  FddiTime
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "I_Max (refer to ANSI SMT 9.4.4.2.1).  It is
                      recognized that some currently deployed systems do
                      not implement an optical bypass.  Systems which do
                      not implement optical bypass should return a value
                      of 0."
              REFERENCE
                      "ANSI { fddiATTACHMENT 13 }"
              ::= { snmpFddiATTACHMENTEntry 5 }

          snmpFddiATTACHMENTInsertedStatus OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2), unimplemented(3) }



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RFC 1285                        FDDI MIB                    January 1992


              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "Indicates whether the attachment is currently
                      inserted in the node."
              REFERENCE
                      "ANSI { fddiATTACHMENT 14 }"
              ::= { snmpFddiATTACHMENTEntry 6 }

          snmpFddiATTACHMENTInsertPolicy OBJECT-TYPE
              SYNTAX  INTEGER { true(1), false(2), unimplemented(3) }
              ACCESS  read-write
              STATUS  mandatory
              DESCRIPTION
                      "Indicates the Insert Policy for this Attachment.
                      Insert: True (1), Don't Insert:  False (2),
                      Unimplemented (3)"
              REFERENCE
                      "ANSI { fddiATTACHMENT 15 }"
              ::= { snmpFddiATTACHMENTEntry 7 }


          -- the Chip Set group
          -- The following object identifiers are allocated for use
          -- with the snmpFddiMACChipSet and snmpFddiPORTChipSet
          -- variables.

                 snmpFddiPHYChipSets   -- Chips primarily responsible
                                       -- for implementing the PHY
                                       -- function.
                         OBJECT IDENTIFIER ::= { snmpFddiChipSets 1 }

                                       -- None defined at present
                                       -- Chipsets may someday be
                                       -- defined here


                 snmpFddiMACChipSets   -- Chips primarily responsible
                                       -- for implementing the
                                       -- MAC function.
                         OBJECT IDENTIFIER ::= { snmpFddiChipSets 2 }

                                        -- None defined at present
                                        -- Chipsets may someday be
                                        -- defined here

                 snmpFddiPHYMACChipSets -- Chips which implement both
                                        -- the PHY and MAC functions



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RFC 1285                        FDDI MIB                    January 1992


                         OBJECT IDENTIFIER ::= { snmpFddiChipSets 3 }

                                        -- None defined at present
                                        -- Chipsets may someday be
                                        -- defined here

          END

6.  Acknowledgements

   This document was produced by the IETF FDDI MIB working group:

               Steve Adams, Digital Equipment Corporation
               Hossein Alaee, 3Com Corporation
               Haggar Alsaleh, Bell Northern Research
               William Anderson, Mitre Corporation
               Alan Apt, Addison-Wesley
               Mary Artibee, Silicon Graphics
               Karen Auerbach, Epilogue Technologies
               Doug Bagnall, Apollo/Hewlett Packard
               Chet Birger, Coral Network Corporation
               Pablo Brenner, Sparta
               Howard Brown, Cabletron
               Jack Brown, US Army Computer Engineering Center
               Eric Brunner
               Jeff Case, The University of Tennessee
               Tammy Chan, Fibercom
               Asheem Chandna, AT&T
               Cho Y. Chang, Apollo/Hewlett Packard
               Chris Chiotasso, Fibronics
               Paul Ciarfella, Digital Equipment Corporation
               John Cook, Chipcom
               Don Coolidge, Silicon Graphics
               Burt Cyr, Unisys
               James R. Davin, Massachusetts Institute of Technology
               Nabil Damouny
               Nadya El-Afandi, Network Systems Corporation
               Hunaid Engineer, Cray Research
               Jeff Fitzgerald, Fibercom
               Richard Fox, Synoptics
               Stan Froyd, ACC
               Debbie Futcher, U.S. Naval Surface Warfare Center
               Joseph Golio, Cray Research
               Jeremy Greene, Coral
               Brian D. Handspicker, Digital Equipment Corporation
               Peter Hayden, Digital Equipment Corporation
               Scott Hiles, U.S. Naval Surface Warfare Center
               Greg Jones, Data General



Case                                                           [Page 43]

RFC 1285                        FDDI MIB                    January 1992


               Satish Joshi, SynOptics Communications
               Jayant Kadambi, AT&T Bell Labs
               Joanna Karwowska, Data General
               Frank Kastenholz, Interlan
               Jim Kinder, Fibercom
               Christopher Kolb, PSI
               Cheryl Krupczak, NCR
               Peter Lin, Vitalink
               Then Liu
               John R. LoVerso, Concurrent Computer Corporation
               Ron Mackey
               Gary Malkin, Proteon
               Bruce McClure, Synernetics
               Keith McCloghrie, Hughes Lan Systems
               Donna McMaster, SynOptics
               John O'Hara, Massachusetts Institute of Technology
               Dave Perkins, SynOptics Communications
               James E. Reeves, SynOptics Communications
               Jim Reinstedler, Ungermann-Bass
               Radhi Renous, Fibronics
               Anil Rijsinghani, Digital Equipment Corporation
               Bob Rolla, Synernetics
               Nelson Ronkin, Synernetics
               Marshall T. Rose, Performance Systems International, Inc.
               Milt Roselinsky, CMC
               Jon Saperia, Digital Equipment Corporation
               Greg Satz, cisco Systems
               Steven Senum, Network Systems Corporation
               Jim Sheridan, IBM Corporation
               Jeffrey Schiller, MIT
               Dror Shindelman, Sparta
               Mark Sleeper, Sparta
               Craig Smelser, Digital Equipment Corporation
               Lou Steinberg, IBM Corporation
               Mary Jane Strohl, Apollo/Hewlett Packard
               Sally Tarquinio, Mitre Corporation
               Kaj Tesink, Bellcore
               Ian Thomas, Chipcom
               Dean Throop, Data General
               Bill Townsend, Xylogics
               Ahmet H. Tuncay, SynOptics Communications
               Mike Turico, Motorola
               Chris VandenBerg, ACC
               Sudhanshu Verma, Hewlett Packard
               Joe Vermeulen, UNISYS
               David Waiteman, BBN
               Bert Williams, Synernetics
               Mark Wood, AT&T Computer Systems



Case                                                           [Page 44]

RFC 1285                        FDDI MIB                    January 1992


               Y. C. Yang
               Denis Yaro, Sun Microsystems
               Jeff Young, Cray Research

   The editor gratefully acknowledges the contributions of the editor of
   the ANSI X3T9.5 SMT document, Mary Jane Strohl of Hewlett
   Packard/Apollo, whose provision of that document in machine readable
   form saved much typing and avoided many data entry errors.

   The author gratefully acknowledges the labors of Dr. Marshall T. Rose
   in assisting with converting this document to the new concise MIB
   format.

8.  References

   [1] Rose M., and K. McCloghrie, "Structure and Identification of
       Management Information for TCP/IP-based internets", RFC 1155,
       Performance Systems International, Hughes LAN Systems, May 1990.

   [2] McCloghrie K., and M. Rose, "Management Information Base for
       Network Management of TCP/IP-based internets", RFC 1156, Hughes
       LAN Systems, Performance Systems International, May 1990.

   [3] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple
       Network Management Protocol", RFC 1157, SNMP Research,
       Performance Systems International, Performance Systems
       International, MIT Laboratory for Computer Science, May 1990.

   [4] McCloghrie K., and M. Rose, Editors, "Management Information Base
       for Network Management of TCP/IP-based internets", RFC 1213,
       Performance Systems International, March 1991.

   [5] Information processing systems - Open Systems Interconnection -
       Specification of Abstract Syntax Notation One (ASN.1),
       International Organization for Standardization, International
       Standard 8824, December 1987.

   [6] Information processing systems - Open Systems Interconnection -
       Specification of Basic Encoding Rules for Abstract Notation One
       (ASN.1), International Organization for Standardization,
       International Standard 8825, December 1987.

   [7] Rose, M., and K. McCloghrie, Editors, "Concise MIB Definitions",
       RFC 1212, Performance Systems International, Hughes LAN Systems,
       March 1991.

   [8] American National Standards Institute, "FDDI Station Management
       (SMT)", Preliminary Draft Proposed American National Standard,



Case                                                           [Page 45]

RFC 1285                        FDDI MIB                    January 1992


       American National Standards Institute, X3T9/90-X3T9.5/84-49 REV
       6.2, May 18, 1990.

Security Considerations

   Security issues are not discussed in this memo.

Author's Address

   Jeffrey D. Case
   SNMP Research, Incorporated
   3001 Kimberlin Heights Road
   Knoxville, Tennessee  37920

   Phone: (615) 573-1434

   EMail: case@CS.UTK.EDU


































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