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What is FEC in MPLS?

Learn what Forwarding Equivalence Class (FEC) is and how it works with Multiprotocol Label Switching (MPLS).

Puneet Mehta
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What is FEC in MPLS?

MPLS uses the concept of packet labeling. As soon as the packet enters a network, it is assigned to a specific Forwarding Equivalence Class (FEC) which is done by appending a label to the packet. This eliminates the need for a router to perform header analysis since each router contains a table indicating how specific FEC type packets are to be handled.

This was last published in August 2007

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