vyos/vyos-documentation
1
0
Fork 0
mirror of https://github.com/vyos/vyos-documentation.git synced 2025-10-26 08:41:46 +01:00
Code Issues Packages Projects Releases Wiki Activity

ospf: T5377: add graceful restart FRR feature (RFC 3623)

Browse Source
This commit is contained in:
Christian Breunig 2023-07-25 23:13:35 +02:00
parent 641e9a84b1
commit 8d0279a0f0
1 changed files with 89 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

89
docs/configuration/protocols/ospf.rst
View File

@ -202,6 +202,17 @@ Optional
This command will change the hold down value globally for IGP-LDP
synchronization during convergence/interface flap events.
.. cfgcmd:: set protocols ospf capability opaque
ospfd supports Opaque LSA :rfc:`2370` as partial support for MPLS Traffic
Engineering LSAs. The opaque-lsa capability must be enabled in the
configuration.
An alternate command could be "mpls-te on" (Traffic Engineering)
.. note:: FRR offers only partial support for some of the routing
protocol extensions that are used with MPLS-TE; it does not
support a complete RSVP-TE solution.
Area Configuration
------------------
@ -483,6 +494,45 @@ Route will be originated on-behalf of all matched external LSAs.
This command to ensure not advertise the summary lsa for the matched
external LSAs.
Graceful Restart
----------------
.. cfgcmd:: set protocols ospf graceful-restart [grace-period (1-1800)]
Configure Graceful Restart :rfc:`3623` restarting support. When enabled,
the default grace period is 120 seconds.
To perform a graceful shutdown, the FRR ``graceful-restart prepare ip
ospf`` EXEC-level command needs to be issued before restarting the
ospfd daemon.
.. cfgcmd:: set protocols ospf graceful-restart helper enable [router-id A.B.C.D]
Configure Graceful Restart :rfc:`3623` helper support. By default, helper support
is disabled for all neighbours. This config enables/disables helper support
on this router for all neighbours.
To enable/disable helper support for a specific neighbour, the router-id
(A.B.C.D) has to be specified.
.. cfgcmd:: set protocols ospf graceful-restart helper no-strict-lsa-checking
By default `strict-lsa-checking` is configured then the helper will abort
the Graceful Restart when a LSA change occurs which affects the restarting
router.
This command disables it.
.. cfgcmd:: set protocols ospf graceful-restart helper supported-grace-time
Supports as HELPER for configured grace period.
.. cfgcmd:: set protocols ospf graceful-restart helper planned-only
It helps to support as HELPER only for planned restarts.
By default, it supports both planned and unplanned outages.
Manual Neighbor Configuration
-----------------------------
@ -1156,6 +1206,45 @@ Interface Configuration
.. _ospf:v3_redistribution_config:
Graceful Restart
----------------
.. cfgcmd:: set protocols ospfv3 graceful-restart [grace-period (1-1800)]
Configure Graceful Restart :rfc:`3623` restarting support. When enabled,
the default grace period is 120 seconds.
To perform a graceful shutdown, the FRR ``graceful-restart prepare ip
ospf`` EXEC-level command needs to be issued before restarting the
ospfd daemon.
.. cfgcmd:: set protocols ospfv3 graceful-restart helper enable [router-id A.B.C.D]
Configure Graceful Restart :rfc:`3623` helper support. By default, helper support
is disabled for all neighbours. This config enables/disables helper support
on this router for all neighbours.
To enable/disable helper support for a specific neighbour, the router-id
(A.B.C.D) has to be specified.
.. cfgcmd:: set protocols ospfv3 graceful-restart helper lsa-check-disable
By default `strict-lsa-checking` is configured then the helper will abort
the Graceful Restart when a LSA change occurs which affects the restarting
router.
This command disables it.
.. cfgcmd:: set protocols ospfv3 graceful-restart helper supported-grace-time
Supports as HELPER for configured grace period.
.. cfgcmd:: set protocols ospfv3 graceful-restart helper planned-only
It helps to support as HELPER only for planned restarts.
By default, it supports both planned and unplanned outages.
Redistribution Configuration
----------------------------