MPLS Guide MPLS and RSVP-TE
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The trigger to signal the LSP is when the router with a router ID matching a prefix in the prefix
list appears in the TE database. The signaled LSP is installed in the Tunnel Table Manager
(TTM) and is available to applications such as resolution of BGP label routes, and resolution
of BGP, IGP, and static routes. It can also be used for auto-binding by a VPRN service but
cannot be used as a provisioned SDP for explicit binding.
Except for the MBB limitations to the configuration parameter change in the LSP template,
MBB procedures for manual and timer-based resignaling of the LSP, and for TE graceful
shutdown, are supported.
The one-to-one option under fast-reroute is not supported.
If the one-hop option is specified instead of a prefix policy, this command enables the
automatic signaling of single-hop, point-to-point LSPs using the specified template to all
directly connected neighbors. This LSP type is referred to as auto LSP of type one-hop.
When the above command is executed, the TE database keeps track of each TE link to a
directly connected IGP neighbor whose router ID is discovered. It then instructs MPLS to
signal an LSP with a destination address matching the router ID of the neighbor and with a
strict hop consisting of the address of the interface used by the TE link. This results in one or
more LSPs signaled to the neighboring router.
For an LSP mesh, the no form of this command deletes all LSPs signaled using the specified
template and prefix policy. When the one-hop option is used, the no form of the command
deletes all single-hop LSPs signaled using the specified template to all directly connected
neighbors.
Default n/a
Parameters template-name — specifies an LSP template name
one-hop — specifies that the template type is one-hop LSP, rather than LSP mesh
peer-prefix-policy — specifies a peer prefix policy name. The prefix policy must already
be defined.
bypass-resignal-timer
Syntax bypass-resignal-timer minutes
no bypass-resignal-timer
Context config>router>mpls
Description This command triggers the periodic global reoptimization of all dynamic bypass LSP paths
associated with RSVP point-to-point LSPs. The operation is performed at each expiry of the
timer.
The no form of this command disables the periodic global re-optimization of dynamic bypass
LSP paths.
Default no bypass-resignal-timer
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