mpls forwarding

[a.sanes]

hi. I have thow cisco routers connected through an atm link, i enabled mpls on boths sides of the link so traffic between them is labeled. All the traffic comming through that link come unlabeled, because the source router has not mpls enabled. Such traffic is discarded, is this the expected ios behavior to discard all traffic to a prefix with an income and outcome label assigned instead of forward it as ip plain traffic? hope u can help me. best regards. asanes

[Harold Ritter]

Incoming IP traffic should cause a CEF lookup and label imposition (if label other than implicit null there is). Incoming MPLS traffic should cause a LFIB lookup and a label swap or label pop (if local host is penultimate hop) operation.

Is CEF enabled in your configuration?

Hope this helps,