There are three types of VPN Inter-AS solutions:
Options B and C use recursive opaque types 8 and 7 respectively, from Table: Recursive opaque types .
| Opaque type | Opaque name | RFC | SR OS use |
|---|---|---|---|
1 |
Basic Type |
RFC 6388 |
VPRN Local AS |
3 |
Transit IPv4 |
RFC 6826 |
IPv4 multicast over mLDP in GRT |
4 |
Transit IPv6 |
RFC 6826 |
IPv6 multicast over mLDP in GRT |
7 |
Recursive Opaque (Basic Type) |
RFC 6512 |
Inter-AS Option C MVPN over mLDP |
8 |
Recursive Opaque (VPN Type) |
RFC 6512 |
Inter-AS Option B MVPN over mLDP |