Range
1-63
64-127
128-240
241-254
Registration Procedures
Note
Standards Action
First Come First Served
Some recognized assignments below, others Reserved
Reserved for Private Use
Not to be assigned
Value
0
1
2
3
4
5
6
7
8
9-63
64
65
66
67
68
69
70
71
72
73
74
75-127
128
129
130-131
132
133
134
135-139
140
141-240
241-254
255
Description
Reference
Reserved
Network Layer Reachability Information used for unicast forwarding
Network Layer Reachability Information used for multicast forwarding
Reserved
Network Layer Reachability Information (NLRI) with MPLS Labels
MCAST-VPN
Network Layer Reachability Information used for Dynamic Placement of Multi-Segment Pseudowires
Encapsulation SAFI
MCAST-VPLS
Unassigned
Tunnel SAFI
Virtual Private LAN Service (VPLS)
BGP MDT SAFI
BGP 4over6 SAFI
BGP 6over4 SAFI
Layer-1 VPN auto-discovery information
BGP EVPNs
BGP-LS
BGP-LS-VPN
SR TE Policy SAFI
SD-WAN Capabilities
Unassigned
MPLS-labeled VPN address
Multicast for BGP/MPLS IP Virtual Private Networks (VPNs)
Reserved
Route Target constrains
IPv4 dissemination of flow specification rules
VPNv4 dissemination of flow specification rules
Reserved
VPN auto-discovery
Reserved
Reserved for Private Use
Reserved