
Subsequent Address Family Identifiers (SAFI) 

(last updated 2009-05-27)

Registries included below
- SAFI Values


Registry Name: SAFI Values
Reference: [RFC4760]
Range      Registration Procedures                              Note
---------  ---------------------------------------------------  --------------------
1-63       Standards Action or Early Allocation policy
64-127     First Come First Served
128-240    Some recognized assignments below, others Reserved 
241-254    Reserved for Private Use                             Not to be assigned

Registry:
Value    Description                                     Reference
-------  ----------------------------------------------  ---------
0        Reserved                                        [RFC4760]

1        Network Layer Reachability Information used     [RFC4760]
         for unicast forwarding	

2        Network Layer Reachability Information used     [RFC4760] 
         for multicast forwarding
	
3        Reserved                                        [RFC4760]

4        Network Layer Reachability Information (NLRI)   [RFC3107]
         with MPLS Labels

5        MCAST-VPN                                       [draft-ietf-l3vpn-2547bis-mcast-bgp]
         (TEMPORARY - Expires 2008-06-19)

6        Network Layer Reachability Information used     [draft-ietf-pwe3-dynamic-ms-pw]
         for Dynamic Placement of Multi-Segment
         Pseudowires
         (TEMPORARY - Expires 2008-08-23)

7        Encapsulation SAFI                              [RFC5512]

8-63     Unassigned

64       Tunnel SAFI                                     [Nalawade]

65       Virtual Private LAN Service (VPLS)              [RFC4761]

66       BGP MDT SAFI                                    [Nalawade]

67       BGP 4over6 SAFI                                 [Cui]

68       BGP 6over4 SAFI                                 [Cui]

69       Layer-1 VPN auto-discovery information          [RFC-ietf-l1vpn-bgp-auto-discovery-05.txt]

70-127   Unassigned 

128      MPLS-labeled VPN address                        [RFC4364]

129      Multicast for BGP/MPLS IP Virtual Private       [RFC2547]
         Networks (VPNs)

130-131  Reserved                                        [RFC4760]

132      Route Target constrains                         [RFC4684]

133      IPv4 dissemination of flow specification rules  [RFC-ietf-idr-flow-spec-09.txt]

134      VPNv4 dissemination of flow specification rules [RFC-ietf-idr-flow-spec-09.txt]

135-139  Reserved                                        [RFC4760]

140      VPN auto-discovery                              [draft-ietf-l3vpn-bgpvpn-auto]

141-240  Reserved                                        [RFC4760]

241-254  Private Use                                     [RFC4760]

255      Reserved                                        [RFC4760]


References
----------
[RFC2547]  E. Rosen and Y. Rekhter, "BGP/MPLS VPNs", RFC 2547, March 1999.

[RFC3107]  Y. Rekhter and E. Rosen, "Carrying Label Information in 
           BGP-4", RFC 3107, May 2001.

[RFC4364]  E. Rosen and Y. Rekhter, "BGP/MPLS IP VPNs", RFC 4364, February 2006.

[RFC4684]  P. Marques, R. Bonica, L. Fang, L. Martini, R. Raszuk, K. Patel
           and J. Guichard, "Constrained VPN Route Distribution", RFC 4684,
           November 2006.

[RFC4760]  T. Bates, R. Chandra, D. Katz and Y. Rekhter, "Multiprotocol 
           Extensions for BGP-4", RFC 4760, January 2007.

[RFC4761]  K. Kompella and Y. Rekhter, "Virtual Private LAN Service 
           (VPLS) Using BGP for Auto-discovery and Signaling", RFC 4761,
           January 2007.

[RFC-ietf-l1vpn-bgp-auto-discovery-05.txt] 
           H. Brahim, D. Fedyk, Y. Rekhter, "BGP-based Auto-Discovery for 
           Layer-1 VPNs", RFC XXXX, Month Year.
  
[RFC-ietf-idr-flow-spec-09.txt]
           P. Marques, N. Sheth, R. Raszuk, B. Greene, J. Mauch, D. McPherson, 
           "Dissemination of flow specification rules", RFC XXXX, Month Year. 
           
[draft-ietf-l3vpn-bgpvpn-auto]  Work in progress

[draft-ietf-pwe3-dynamic-ms-pw] Work in progress

[draft-ietf-l3vpn-2547bis-mcast-bgp] Work in progress

[RFC5512]  P. Mohapatra, E. Rosen, "BGP Encapsulation SAFI and BGP Tunnel 
           Encapsulation Attribute", RFC 5512, April 2009.

People
------
[Bates] Tony Bates, <tbates&cisco.com>, July 2000. 

[Cui]  Yong Cui, <cuiyong&tsinghua.edu.cn>, 15 August 2006, 20 September 2006.

[Nalawade]  Gargi Nalawade, <gargi&cisco.com>, January 2004. 
           (draft-nalawade-kapoor-tunnel-safi-01.txt)  
           (draft-nalawade-idr-mdt-safi-00.txt), February 2004.

(created 2000-07)

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