O'Reilly logo

MPLS Fundamentals by Luc De Ghein - CCIE No. 1897

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Label Advertisement

The IGP and LDP on the ATM LSRs cannot run directly over the ATM interface and establish a neighborship. A control VC is needed for the IGP and LDP to run on between two adjacent ATM LSRs. When the IGP adjacency is built, the IGP can exchange IP prefixes which are put in the routing table. After LDP forms a session across the control VC, it can exchange label bindings. This in turn enables the ATM LSRs to populate the LIB with bindings. As you recall, a binding is a prefix and an associated label. Each IGP prefix in the routing table must be assigned a label. Each label value is mapped to a VPI/VCI value, and a virtual circuit is built for each label. Such a virtual circuit is called a label switched controlled virtual circuit ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required