MPLS Guide MPLS and RSVP-TE
3HE 18686 AAAB TQZZA © 2022 Nokia.
Use subject to Terms available at: www.nokia.com
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During a timer-based resignaling of an LSP path that has the least-fill option enabled, CSPF
first updates the least-available bandwidth value for the current path of this LSP. It then
applies the least-fill path selection method to select a new path for this LSP. If the new
computed path has the same cost as the current path, CSPF compares the least-available
bandwidth values of the two paths and if the difference exceeds the user-configured
optimization threshold, MPLS generates a trap to indicate that a better least-fill path is
available for this LSP. This trap can be used by an external SNMP-based device to trigger a
manual resignaling of the LSP path, since the timer-based resignaling will not resignal the
path in this case. MPLS generates a path update trap at the first MBB event that results in the
resignaling of the LSP path. This clears the eligibility status of the path at the SNMP device.
The no form of the command resets this parameter to its default value.
Default 10
Parameters percent — specifies the least fill reoptimization threshold value as a percentage
Values 1 to 100
logger-event-bundling
Syntax [no] logger-event-bundling
Context config>router>mpls
Description This command merges two of the most commonly generated MPLS traps, vRtrMplsXCCreate
and vRtrMplsXCDelete, which can be generated at both the LER and LSR, into the new
vRtrMplsSessionsModified trap. In addition, this command bundles traps of multiple RSVP
sessions, such as LSPs, into this new trap.
This trap bundling allows the user to minimize trap generation in an MPLS network. MPLS
trap throttling is not applied to the vRtrMplsSessionsModified trap.
The no version of the command disables the merging and bundling of the vRtrMplsXCCreate
and vRtrMplsXCDelete traps.
pce-report
Syntax pce-report rsvp-te {enable | disable}
pce-report sr-te {enable | disable}
Context config>router>mpls
Description This command separately configures the reporting modes to a PCE for RSVP-TE or SR-TE
LSPs.
The PCC LSP database is synchronized with the PCE LSP database using the PCEP PCRpt
(PCE Report) message for PCC-controlled, PCE-computed, and PCE-controlled LSPs.
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