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OSPF Extensions to Support Traffic Engineering
To help provide traffic engineering and MPLS with
information about network topology and loading, extensions have been
added to the JUNOS implementation of OSPF. Specifically, OSPF generates
opaque LSAs, which carry traffic engineering parameters. These parameters
are used to populate the traffic engineering database, which is used
by the Constrained Shortest Path First (CSPF) algorithm to compute
the paths that MPLS LSPs take. This path information is used by RSVP
to set up LSPs and reserve bandwidth for them.
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