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| -rw-r--r-- | docs/configuration/protocols/bgp.md | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/docs/configuration/protocols/bgp.md b/docs/configuration/protocols/bgp.md index cfa79ce4..87628664 100644 --- a/docs/configuration/protocols/bgp.md +++ b/docs/configuration/protocols/bgp.md @@ -797,6 +797,52 @@ This command specifies keep-alive time in seconds. The timer can range from 4 to 65535. The default value is 60 second. ``` + +##### BGP read-only mode + +```{eval-rst} +.. cfgcmd:: set protocols bgp parameters update-delay max-delay <seconds> + +**Enable BGP read-only mode after a BGP process restart or clearing all BGP sessions, and configure the mode’s maximum delay.** + +In read-only mode, BGP suspends best-path selection and does not send routing +updates to peers. The mode ends when the router receives all expected +End-of-RIB (EOR) messages from BGP peers or when the maximum delay is +reached, whichever occurs first. + +The router expects EOR messages from all configured BGP peers except those +that are administratively shut down. If the ``establish-wait`` parameter is +configured, the router waits for EOR messages only from BGP peers that reach +the Established state within the ``establish-wait`` window. + +The allowed range is 0 to 3600 seconds. By default, this feature is disabled. + +Example: + +.. code-block:: none + + set protocols bgp parameters update-delay max-delay 120 +``` + +```{eval-rst} +.. cfgcmd:: set protocols bgp parameters update-delay establish-wait <seconds> + +**Configure how long the router waits for BGP peers to reach the Established state after read-only mode begins.** + +The router waits for EOR messages only from BGP peers that reach the +Established state within the ``establish-wait`` window. The ``establish-wait`` +value must not exceed the ``max-delay`` value. + +The allowed range is 1 to 3600 seconds. This parameter requires ``max-delay`` to +be configured. + +Example: + +.. code-block:: none + + set protocols bgp parameters update-delay establish-wait 90 +``` + ##### Route Dampening When a route fails, a routing update is sent to withdraw the route from the |