PCEP
324
MPLS Guide
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4.5 PCEP Support for RSVP-TE LSPs
This section describes the support of PCC-initiated RSVP-TE LSPs. PCEP support
of an RSVP-TE LSP is described in LSP Initiation with the following differences:
• each primary and secondary path is assigned its own unique path LSP-ID
(PLSP-ID)
• the PCC indicates to the PCE the state of each path (either up or down) and
which path is currently active and carrying traffic (active state)
This section includes the following topics:
• RSVP-TE LSP Configuration for a PCC Router
• Behavior of the LSP Path Update
• Behavior of LSP MBB
• Behavior of Secondary LSP Paths
• PCE Path Profile Support
4.5.1 RSVP-TE LSP Configuration for a PCC Router
The following MPLS-level and LSP-level CLI commands are used to configure
RSVP-TE LSPs in a router acting as a PCEP Client (PCC). See MPLS and RSVP-
TE Command Reference for command descriptions.
• config>router>mpls>
pce-report rsvp-te {enable | disable}
• config>router>mpls>lsp>
path-profile profile-id [path-group group-id]
pce-computation
pce-control
pce-report {enable | disable | inherit}
• config>router>mpls>lsp-template
pce-report {enable | disable | inherit}
The cspf option must be enabled on the LSP before enabling the pce-computation
or pce-control options. An attempt to disable the cspf option on an RSVP-TE LSP
that has the pce-computation or pce-control options enabled will be rejected.
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