BGP AFI/SAFI Naming

[gs1571]

Some days ago, we had such an agreement about naming AFI/SAFI for our internal products. Let's use it for annet.

BGP AFI	BGP SAFI	Name	RFC
1	1	ipv4_unicast	RFC4760
1	4	ipv4_labeled_unicast	RFC8277
1	73	ipv4_srpolicy	draft-ietf-idr-segment-routing-te-policy-26
1	128	ipv4_vpn_unicast	RFC4364/RFC8277/RFC9252
1	133	ipv4_flowspec	RFC8955
2	1	ipv6_unicast	RFC4760
2	4	ipv6_labeled_unicast	RFC8277
2	73	ipv6_srpolicy	draft-ietf-idr-segment-routing-te-policy-26
2	128	ipv6_vpn_unicast	RFC4364/RFC8277/RFC9252
2	133	ipv6_flowspec	RFC8955
25	70	l2vpn_evpn	RFC7432
16388	71	link_state	RFC7752
16388	72	link_state_vpn	RFC7752

Links:

• IANA Address Family Numbers
• IANA Subsequent Address Family Identifiers Parameters

[gs1571]

To be honest some popular AFI/SAFI are absent, I propose using that naming for them:

BGP AFI	BGP SAFI	Name	RFC
1	2	ipv4_multicast	RFC4760
1	5	ipv4_ng_mvpn	RFC6514
1	129	ipv4_vpn_multicast	RFC6513/RFC6514
1	132	rt_constrains	RFC4684
2	2	ipv6_multicast	RFC4760
1	5	ipv6_ng_mvpn	RFC6514
2	129	ipv6_vpn_multicast	RFC6513/RFC6514
25	65	l2vpn_bgp	RFC4761/RFC6074