Capability Codes (last updated 2009-08-04) Registries included below: - Capability Codes Registry Name: Capability Codes Reference: [RFC5492] Range Registration Procedures Notes --------- ----------------------------------- --------------------- 1-63 IETF Review 64-127 First Come First Served 128-255 Reserved for Private Use IANA does not assign Registry: Value Description Reference -------- ----------------------------------------------------- --------- 0 Reserved [RFC5492] 1 Multiprotocol Extensions for BGP-4 [RFC2858] 2 Route Refresh Capability for BGP-4 [RFC2918] 3 Outbound Route Filtering Capability [RFC5291] 4 Multiple routes to a destination capability [RFC3107] 5 Extended Next Hop Encoding [RFC5549] 6-63 Unassigned 64 Graceful Restart Capability [RFC4724] 65 Support for 4-octet AS number capability [RFC4893] 66 Deprecated (2003-03-06) 67 Support for Dynamic Capability (capability specific) [Chen] 68 Multisession BGP Capability [Appanna] 69 ADD-PATH Capability [draft-ietf-idr-add-paths] 70-127 Unassigned 128-255 Reserved for Private Use [RFC5492] References ---------- [RFC2858] Bates, T., Y. Rekhter, R. Chandra, and D. Katz, "Multiprotocol Extensions for BGP-4", RFC 2858, June 2000. [RFC2918] Chen, E., "Route Refresh Capability for BGP-4", RFC 2918, September 2000. [RFC3107] Y. Rekhter and E. Rosen, "Carrying Label Information in BGP-4", RFC 3107, May 2001. [RFC4724] S. Sangli, Y. Rekhter, R. Fernando, J. Scudder, E. Chen, "Graceful Restart Mechanism for BGP", RFC 4724, January 2007. [RFC4893] Q. Vohra, E. Chen, "BGP Support for Four-octet AS Number Space", RFC 4893, May 2007. [RFC5291] E. Chen, Y. Rekhter, "Outbound Route Filtering Capability for BGP-4", RFC 5291, August 2008. [RFC5492] J. Scudder, R. Chandra, "Capabilities Advertisement with BGP-4", RFC 5492, February 2009. [RFC5549] F. Le Faucheur, E. Rosen, "Advertising IPv4 Network Layer Reachability Information with an IPv6 Next Hop", RFC 5549, May 2009. [draft-ietf-idr-add-paths] work in progress People ------ [Appanna] Chandra Appanna, , 22 March 2007. [Chandra] Ravi Chandra, , May 2000. [Chen] Enke Chen, , October 2000, August 2001, November 2001, March 2003. []