January 2001
Intermediate to advanced
368 pages
11h 35m
English
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258 Chapter 10: MPLS Traffic Engineering
IS-IS Modifications
The IS reachability TLV is extended to carry the new data for link resource information.
The extended IS reachability TLV is TLV type 22. Within this TLV, various sub-TLVs are
used to carry the link attributes for TE.
OSPF Modifications
Because the baseline OSPF Router LSA is essentially nonextensible, OSPF extensions for
TE use the Opaque LSA
5
. Three types of Opaque LSAs exist, each having a different
flooding scope. OSPF extensions for TE use only Type 10 LSAs, which have a flooding
scope of an area.
The new Type 10 Opaque LSA for TE is called the TE LSA. This LSA describes routers and
point-to-point ...
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