MPLS and RSVP-TE
170
MPLS Guide
© 2022 Nokia.
Use subject to Terms available at: www.nokia.com
3HE 18686 AAAB TQZZA
Parameters minutes — the time that MPLS waits before attempting to resignal dynamic bypass LSP
paths originated on the system
Values 30 to 10080
cspf-on-loose-hop
Syntax [no] cspf-on-loose-hop
Context config>router>mpls
Description This command enables the option to perform CSPF calculations to the next loose hop or the
final destination of the LSP on the LSR. On receiving a PATH message on the LSR and
processing all local hops in the received ERO, if the next hop is loose, then the LSR does a
CSPF calculation to the next loose hop (this is known as ERO expansion). On successful
completion of the CSPF calculation, the ERO in the PATH message is modified to include the
newly calculated intermediate hops and the message is propagated forward to the next hop.
This allows for the setting up of inter-area LSPs based on the ERO expansion method.
The LSP may fail to set up if this option is enabled on an LSR that is not an ABR and that
receives a PATH message without a proper next loose hop in the ERO. The cspf-on-loose-
hop configuration can change dynamically and is applied to the new LSP setup after changes
are made.
Default no cspf-on-loose-hop
dynamic-bypass
Syntax dynamic-bypass [enable | disable]
Context config>router>mpls
Description This command disables the creation of dynamic bypass LSPs in FRR. One or more manual
bypass LSPs must be configured to protect the primary LSP path at the PLR nodes.
Default enable
entropy-label
Syntax entropy-label rsvp-te {force-disable | enable}
entropy-label sr-te {force-disable | enable}
Context config>router>mpls
Description This command enables or disables the use of entropy labels for MPLS RSVP-TE and SR-TE
LSPs.
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