Value,Description,Reference
0,Reserved,[RFC4760]
1,"Network Layer Reachability Information used     
for unicast forwarding",[RFC4760]
2,"Network Layer Reachability Information used     
for multicast forwarding",[RFC4760]
3,Reserved,[RFC4760]
4,"Network Layer Reachability Information (NLRI)   
with MPLS Labels",[RFC8277]
5,MCAST-VPN,[RFC6514]
6,"Network Layer Reachability Information used     
for Dynamic Placement of Multi-Segment Pseudowires",[RFC7267]
7,Encapsulation SAFI (OBSOLETE),[RFC9012]
8,MCAST-VPLS,[RFC7117]
9,BGP SFC,[RFC9015]
10-63,Unassigned,
64,Tunnel SAFI,[Gargi_Nalawade][draft-nalawade-kapoor-tunnel-safi-01]
65,Virtual Private LAN Service (VPLS),[RFC4761][RFC6074]
66,BGP MDT SAFI,[RFC6037]
67,BGP 4over6 SAFI,[RFC5747]
68,BGP 6over4 SAFI,[Yong_Cui]
69,Layer-1 VPN auto-discovery information,[RFC5195]
70,BGP EVPNs,[RFC7432]
71,BGP-LS,[RFC9552]
72,BGP-LS-VPN,[RFC9552]
73,SR Policy SAFI,[RFC9830]
74,SD-WAN Capabilities,[draft-ietf-idr-sdwan-edge-discovery-03]
75,Routing Policy SAFI,[draft-ietf-idr-rpd-02]
76,Classful Transport (CT),[RFC9832]
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,[RFC9815]
81-82,Unassigned,
83,BGP CAR,[RFC-ietf-idr-bgp-car-16]
84,BGP VPN CAR,[RFC-ietf-idr-bgp-car-16]
85,BGP-MUP SAFI,[draft-mpmz-bess-mup-safi-00]
86-127,Unassigned,
128,MPLS-labeled VPN address,[RFC4364][RFC8277][RFC9252]
129,"Multicast for BGP/MPLS IP Virtual Private       
Networks (VPNs)",[RFC6513][RFC6514]
130-131,Reserved,[RFC4760]
132,Route Target constrains,[RFC4684]
133,Dissemination of Flow Specification rules,[RFC8955]
134,L3VPN Dissemination of Flow Specification rules,[RFC8955]
135-139,Reserved,[RFC4760]
140,VPN auto-discovery,[draft-ietf-l3vpn-bgpvpn-auto-08]
141-240,Reserved,[RFC4760]
241-254,Reserved for Private Use,[RFC4760]
255,Reserved,[RFC4760]