show mpls for - unusual output

[bingz]

can anyone explain this output. ip addresses are replaced by variables

show mpls forwarding

DIL-GSR-CORE1>sh mpls for

28 Pop tag A 122 [6663] 0 Gi2/1 B

30 27 A/32 0 Gi2/0 C

27 A/32 0 Gi1/0 D

i do not understand the first entry. it has a subnet prefix of 122 and an extra output which is [6663].

The output is confusing since for the same destination (A), one has "pop tag" and the other has a next hop.

what does this mean?

Thanks.

[Harold Ritter]

This entry means that you are running MPLS traffic engineering. A is the loopback ip addres of the tunnel headend, 122 is the tunnel id not the prefix length and 6663 is the tunnel instance number.

The other entries have bee created by LDP.

Hope this helps,

[bingz]

Hi! this helps a lot. Many thanks!