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isis: T7722: Added the interface LFA configuration commands (#1692)

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Added the interface LFA configuration commands documentation
in the protocol ISIS.
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aapostoliuk 2025-10-20 14:55:42 +03:00 committed by GitHub
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docs/configuration/protocols/isis.rst
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@ -223,6 +223,25 @@ Interface Configuration
This command will change the hold down value for IGP-LDP synchronization
during convergence/interface flap events, but for this interface only.
.. cfgcmd:: set protocols isis interface <interface> fast-reroute lfa [level-1 | level-2] enable
This command enables per-prefix local LFA fast reroute link protection.
.. cfgcmd:: set protocols isis interface <interface> fast-reroute lfa [level-1 | level-2] exclude
This command excludes an interface from the local LFA backup nexthop computation.
.. cfgcmd:: set protocols isis interface <interface> fast-reroute remote-lfa [level-1 | level-2] tunnel mpls-ldp
This command enables per-prefix Remote LFA fast reroute link protection.
Note that other routers in the network need to be configured to accept LDP
targeted hello messages in order for RLFA to work.
.. cfgcmd:: set protocols isis interface <interface> fast-reroute remote-lfa [level-1 | level-2] maximum-metric <metric>
This command limits Remote LFA PQ node selection within the specified metric. Metric value range (1-16777215).
.. cfgcmd:: set protocols isis interface <interface> fast-reroute ti-lfa [level-1|level-2] [node-protection [link-fallback]]
This command enables per-prefix TI-LFA fast reroute link or node protection.
When node protection is used, option link-fallback enables the computation and
use of link-protecting LFAs for destinations unprotected by node protection.
Route Redistribution
--------------------