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 Informtion (NLRI) [RFCXXXX] in the Multiprotocol Extensions 5-63 Unassigned 64-127 Unassigned 128-255 Private Use People ------ [Bates] Tony Bates, , July 2000. References ---------- [RFC2858] Bates, T., Rekhter, Y., Chandra, R., and Katz, D., "Multiprotocol Extensions for BGP-4", RFC 2858, June 2000. (created 07/00) []