L


label

In MPLS, 20-bit unsigned integer in the range 0 through 1,048,575 used to identify a packet traveling along an LSP.



label-switched path (LSP)

Sequence of routers that cooperatively perform MPLS operations for a packet stream. The first router in an LSP is called the ingress router, and the last router in the path is called the egress router. An LSP is a point-to-point, half-duplex connection from the ingress router to the egress router. (The ingress and egress routers cannot be the same router.)



label switching
See [MPLS]
label-switching router
See [LSR]
link

Communication path between two neighbors. A link is up when communication is possible between the two end points.



link-state PDU (LSP)

Packets that contain information about the state of adjacencies to neighboring systems.



local preference

Optional BGP path attribute carried in internal BGP update packets that indicates the degree of preference for an external route.



loose

In the context of traffic engineering, a path that can use any route or any number of other intermediate (transit) points to reach the next address in the path.



LSP
See also [label-switched path (LSP)]
See also [link-state PDU (LSP)]


LSR

Label-switching router. A router on which MPLS and RSVP are enabled and is thus capable of processing label-switched packets.





Juniper Networks Field Guide and Reference
Juniper Networks Field Guide and Reference
ISBN: 0321122445
EAN: 2147483647
Year: 2002
Pages: 185

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