Cisco Cisco IOS Software Release 12.0(14)S

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MPLS Traffic Engineering (TE)—IP Explicit Address Exclusion
Glossary
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Release 12.0(14)S
Glossary
CEF—Cisco express forwarding. A means for accelerating the forwarding of packets within a router, by 
storing route lookup information in several data structures instead of in a route cache.
IP explicit path—A list of IP addresses, each representing a node or link in the explicit path.
link—Network communications channel consisting of a circuit or transmission path and all related 
equipment between a sender and a receiver. Sometimes referred to as a line or a transmission link.
MPLS—Multiprotocol label switching (formerly known as tag switching). A method for directing 
packets primarily through Layer 2 switching rather than Layer 3 routing. In MPLS, packets are assigned 
short fixed-length labels at the ingress to an MPLS cloud by using the concept of forwarding equivalence 
classes. Within the MPLS domain, the labels are used to make forwarding decisions mostly without 
recourse to the original packet headers.
node—Endpoint of a network connection or a junction common to two or more lines in a network. Nodes 
can be interconnected by links, and serve as control points in the network.