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SAFI - Subsequence Address Family Identifier per [RFC2858]
As specified in this document, the MPL_REACH_NLRI and MP_UNREACH_NLRI
attributes contain the Subsequence Address Family Identifier (SAFI)
field. The SAFI name space is defined in Section 9. The IANA will
maintain and register values for the SAFI namespace as follows. SAFI
value 0 is reserved. SAFI values 1, 2, and 3 are assigned in this
document. SAFI values 4 through 63 are to be assigned by IANA using
the "IETF Consensus" policy defined in RFC2434. SAFI values 64
through 127 are to be assigned by IANA, using the "First Come First
Served" policy defined in RFC2434. SAFI values 128 through 255 are
for "private use", and values in this range are not to be assigned by
IANA.
Value Description Reference
----- ----------- ---------
0 Reserved
1 Network Layer Reachability Information used [RFC2858]
for unicast forwarding
2 Network Layer Reachability Information used [RFC2858]
for mulitcast forwarding
3 Network Layer Reachability Information used [RFC2858]
for both unicast and multicast forwarding
4 Network Layer Reachability Information (NLRI) [RFC3107]
with MPLS Labels
5-63 Unassigned
64-127 Unassigned
128-255 Private Use
People
------
[Bates] Tony Bates, <tbates@cisco.com>, July 2000.
References
----------
[RFC2858] Bates, T., Rekhter, Y., Chandra, R., and Katz, D.,
"Multiprotocol Extensions for BGP-4", RFC 2858, June 2000.
[RFC3107] Y. Rekhter and E. Rosen, "Carrying Label Information in
BGP-4", RFC 3107, May 2001.
(created 07/00)
(last updated May 10 2001)
[]
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