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IP Communications and Services for NGN
book

IP Communications and Services for NGN

by Johnson I Agbinya
December 2009
Intermediate to advanced content levelIntermediate to advanced
411 pages
12h 24m
English
Auerbach Publications
Content preview from IP Communications and Services for NGN
MPLS: MultiProtocol Label Switching 151
can be propagated downstream in the chain of LSR until it is received by the
egress LER.
Label Request Response: A downstream LSR on receiving the label request sends
a label to the upstream LSR requestor using a label mapping framework.
Distribution of Labels
Label distribution ensures that neighboring routers have a common view of the
FEC requirements through the label bindings. Because labels are created based on
the FECs, then to make label swapping possible, a uniform and clear understand-
ing of which FECs map to which labels must be established between adjacent rout-
ers (LDP adjacencies). e ...
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Publisher Resources

ISBN: 9781420070910