Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started.

New Member

Egress-Targeted Label Assignment doubt

Hi guys,

According to RFC 3031 Egress-Targeted Labels can be assigned if the ingress router (Ri) knows "for sure" that a set of FEC follow the same LSP across the MPLS P-net.

One of the ways for Ri to know this is:

"If the network is running a link state routing algorithm, and all nodes in the area support MPLS, then the routing algorithm provides Ri with enough information to determine the routers through which packets in that FEC must leave the routing domain or area."

I do not agree with this statement for interdomain routing in ISIS or InterArea in OSPF... but maybe I am missing something or misunderstanding the idea behind all this.

TIA, Jordi.

  • MPLS