Questions for MPLS 2 labels on PE routers

[gongya001]

This is a packet for icmp through MPLS. It is captured on PE.

The top label is assigned by the next hop router in the core, the second label is assigned by the remote PE.

For the first label, I can verify it in LIB on the next hop router. Where can I find the second label on the remote PE, also what packet should include the second label if I capture the traffic ?

thanks a lot !!

[insideshell · Accepted solution]

Your capture looks like the data plane of a BGP/MPLS IP VPN (RFC 4364). I think you should be able to see the VPN label using this command on the PE:

#show bgp vrf [YOUR-VRF] 6.6.6.6
 (...)
 Received Label: 18 # for an imported VPN route

#show bgp vrf [YOUR-VRF] 1.1.1.1
 (...)
 Local Label: ?? # for an originated VPN route

[gongya001]

thanks a lot !!

[insideshell · Accepted solution]

You're welcome! I'm glad I could help.