
Capability Codes 

(last updated 2007-05-18)

Registries included below:
- Capability Codes

Note:
As specified in this document, the Capability optional parameter
contains the Capability Code field. Capability Code value 0 is
reserved. Capability Code values 1 through 63 are to be assigned by
IANA using the "IETF Consensus" policy defined in RFC2434. Capability
Code values 64 through 127 are to be assigned by IANA, using the
"First  Come First Served" policy defined in RFC2434. Capability
Code values 128 through 255 are vendor-specific, and values in this
range are not to be assigned by IANA.

Registry Name: Capability Codes
Reference: [RFC3392]
Range      Registration Procedures              Notes
---------  -----------------------------------  ---------------   
1-63       IETF Consensus 
64-127     FCFS

Registry:
Value     Description                                            Reference
-------   -----------------------------------------------------  ---------
0	      Reserved                                               [RFC3392]
1	      Multiprotocol Extensions for BGP-4                     [RFC2858]
2	      Route Refresh Capability for BGP-4                     [RFC2918]
3         Cooperative Route Filtering Capability                 [Rekhter]
4         Multiple routes to a destination capability            [RFC3107]
5-63      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 -127	  Unassigned				
128-255	  Vendor Specific			


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.

[RFC3392]  R. Chandra and J. Scudder, "Capabilities Advertisement 
           with BGP-4", RFC 3392, November 2002.

[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.


People
------

[Appanna]  Chandra Appanna, <achandra&cisco.com>, 22 March 2007.

[Chandra]  Ravi Chandra, <rchandra&siara.com>, May 2000.       

[Chen]     Enke Chen, <enke&redback.com>, October 2000, August 2001,
           November 2001, March 2003.

[Rekhter]  Yakov Rekhter, <yakov&cisco.com>, October 2000.

[]
