1428 ExtremeWare Software 7.3.0 Command Reference Guide
BGP Commands
configure bgp peer-group dampening
configure bgp peer group <name> dampening {{<half-life> {<reuse> <suppress>
<max-suppress> }} | {route-map <route map>}}
Description
Configures route flap dampening for a BGP peer group.
Syntax Description
Default
This feature is disabled by default.
Usage Guidelines
The half life is the period of time, in minutes, during which the accumulated penalty of a route is
reduced by half. The range is 1 to 45 minutes, and the default is 15 minutes.
The reuse limit is the penalty value below which a route will be used again. The range is 1-20,000, and
the default is 750.
The suppress limit is the penalty value above which a route will be suppressed. The range is 1-20,000,
and the default is 2,000.
The maximum hold down time is the maximum time a route can be suppressed, no matter how
unstable it has been, as long as it no longer flaps. The range is 1-255 minutes, and the default is 4 * the
half life.
Use the following command to disable route flap dampening for a BGP peer-group:
configure bgp peer-group <name> no-dampening
Example
The following command configures route flap dampening for the BGP peer group outer:
configure bgp peer-group outer dampening
History
This command was first available in ExtremeWare 7.0.0.
name Specifies a peer group
half-life Specifies the dampening half life.
reuse Specifies the reuse limit.
suppress Specifies the suppress limit.
max-suppress Specifies the maximum hold down time.
route map Specifies a route map
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