Hello experts While reading MPLS basics, I have a query :-
FEC says providing the same behavior to same kind of packet that is allocating the same next hop, same egress interface. AS book says - "In MPLS, the assignment of a particular packet to a particular FEC is done just once, as the packet enters the network. The FEC to which the packet is assigned is encoded as a short fixed length value known as a "label". " That mean classifying the packets and assigning the labels as per the classification. and for LIB book says - " The LIB functions in the control plane and is used by the label distribution protocol where IP destination prefixes in the routing table are mapped to next-hop labels that are received from downstream neighbors, as well as local labels generated by the label distribution protocol." I am confused - FEC says classifying the packet and assigning the label and LIB says destination prefixes are mapped to labels. *If Destination prefixes need to mapped to labels then why do we need to classify the packets and why do we need FEC ?* * * *I know that I am missing something because books area already reviewed by experts.* Thanks®ards Vishal +91 8587900305 Best way to predict the future ..... is to create it _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
