BGP graceful restart

Graceful restart commands

Command syntax	Description	CLI reference
`bgp graceful-restart` { restart-time `val` \| [stalepath-time `val`]}	Configures BGP graceful restart timers.	Configuring BGP graceful restart timers
[no] `bgp log-neighbor-changes` [prefix-list `prefix-list-name`]	Enables or disables BGP event logging.	Enabling event logging
[no] `neighbor ipv4-addr description desc`	Describes a neighbor.	Describing a neighbor
[no] `nonstop`	Configured under BGP routing context, enables nonstop forwarding for BGP on the 8200 series devices and enables the router to retain the ip forwarding table across redundancy switchover.	Enabling nonstop forwarding for BGP

Configuring BGP graceful restart timers

Syntax:

bgp graceful-restart { restart-time val | [stalepath-time val]}

Configures BGP graceful restart timers as follows:

restart-time

The time in seconds to wait for a graceful restart capable neighbor to re-establish BGP peering.

stalepath-time

The time in seconds to hold stale routes for a restarting peer.

Enabling event logging

Syntax:

[no] bgp log-neighbor-changes [prefix-list prefix-list-name]

Enables or disables BGP event logging. Optionally, specify a prefix-list to filter log messages from specific BGP neighbors only.

Describing a neighbor

Syntax:

[no] neighbor ipv4-addr description desc

Describes a neighbor.

Enabling nonstop forwarding for BGP

Syntax:

[no] nonstop

Configured under BGP routing context, enables nonstop forwarding for BGP on the 8200 series devices and enables the router to retain the ip forwarding table across redundancy switchover.

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Configuring BGP policy globally	home	Neighbor configuration and neighbor policy configuration

`restart-time`	The time in seconds to wait for a graceful restart capable neighbor to re-establish BGP peering.
`stalepath-time`	The time in seconds to hold stale routes for a restarting peer.