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                                               Subsequent Address Family Identifiers (SAFI) Parameters

Created
        2000-07

Last Updated
        2026-03-19

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Registry Included Below

  • SAFI Values

SAFI Values

Reference
        [RFC 4760]

Note

 When this registry is modified, the YANG module [iana-routing-types]
 must be updated as defined in [RFC 8294].


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 Range               Registration Procedures                      Note
1-63    Standards Action
64-127  First Come First Served
128-240 Some recognized assignments below, others Reserved
241-254 Reserved for Private Use                           Not to be assigned

 Value                       Description                                                             Reference
   0    Reserved                                              [RFC 4760]
   1    Network Layer Reachability Information used for       [RFC 4760]
        unicast forwarding
   2    Network Layer Reachability Information used for       [RFC 4760]
        multicast forwarding
   3    Reserved                                              [RFC 4760]
   4    Network Layer Reachability Information (NLRI) with    [RFC 8277]
        MPLS Labels
   5    MCAST-VPN                                             [RFC 6514]
   6    Network Layer Reachability Information used for       [RFC 7267]
        Dynamic Placement of Multi-Segment Pseudowires
   7    Encapsulation SAFI (OBSOLETE)                         [RFC 9012]
   8    MCAST-VPLS                                            [RFC 7117]
   9    BGP SFC                                               [RFC 9015]
 10-63  Unassigned
  64    Tunnel SAFI                                           [Gargi_Nalawade]; [draft-nalawade-kapoor-tunnel-safi-01]
  65    Virtual Private LAN Service (VPLS)                    [RFC 4761]; [RFC 6074]
  66    BGP MDT SAFI                                          [RFC 6037]
  67    BGP 4over6 SAFI                                       [RFC 5747]
  68    BGP 6over4 SAFI                                       [Yong_Cui]
  69    Layer-1 VPN auto-discovery information                [RFC 5195]
  70    BGP EVPNs                                             [RFC 7432]
  71    BGP-LS                                                [RFC 9552]
  72    BGP-LS-VPN                                            [RFC 9552]
  73    SR Policy SAFI                                        [RFC 9830]
  74    SD-WAN Capabilities                                   [draft-ietf-idr-sdwan-edge-discovery-03]
  75    Routing Policy SAFI                                   [draft-ietf-idr-rpd-02]
  76    Classful Transport (CT)                               [RFC 9832]
  77    Tunneled Traffic Flowspec                             [draft-ietf-idr-flowspec-nvo3-10]
  78    MCAST-TREE                                            [draft-ietf-bess-bgp-multicast-03]
  79    BGP-DPS (Dynamic Path Selection)                      [https://eos.arista.com/eos-4-26-2f/dps-vpn-scaling-using-bgp]; [Venkit_Kasiviswanathan]
  80    BGP-LS-SPF                                            [RFC 9815]
  81    Unreachability Information SAFI                       [Jeff_Tantsura]; [draft-tantsura-idr-unreachability-safi-01]
  82    Unassigned
  83    BGP CAR                                               [RFC 9871]
  84    BGP VPN CAR                                           [RFC 9871]
  85    BGP-MUP SAFI                                          [draft-mpmz-bess-mup-safi-00]
86-127  Unassigned
  128   MPLS-labeled VPN address                              [RFC 4364]; [RFC 8277]; [RFC 9252]
  129   Multicast for BGP/MPLS IP Virtual Private Networks    [RFC 6513]; [RFC 6514]
        (VPNs)
130-131 Reserved                                              [RFC 4760]
  132   Route Target constrains                               [RFC 4684]
  133   Dissemination of Flow Specification rules             [RFC 8955]
  134   L3VPN Dissemination of Flow Specification rules       [RFC 8955]
135-139 Reserved                                              [RFC 4760]
  140   VPN auto-discovery                                    [draft-ietf-l3vpn-bgpvpn-auto-08]
141-240 Reserved                                              [RFC 4760]
241-254 Reserved for Private Use                              [RFC 4760]
  255   Reserved                                              [RFC 4760]

                                                                 Contact Information

           ID                     Name                   Contact URI           Last Updated
[Gargi_Nalawade]         Gargi Nalawade         mailto:gargi&cisco.com         2004-01
[Jeff_Tantsura]          Jeff Tantsura          mailto:jefftant.ietf&gmail.com 2026-03-19
[Venkit_Kasiviswanathan] Venkit Kasiviswanathan mailto:venkit&arista.com       2021-09-08
[Yong_Cui]               Yong Cui               mailto:cuiyong&tsinghua.edu.cn 2006-09-20

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