Reference Guide

IPv6 Border Gateway Protocol (IPv6 BGP) | 741
Command Modes
ROUTER BGP
Command
History
Usage
Information
The Autonomous Systems configured in this command are visible to the EBGP neighbors. Each
Autonomous System is fully meshed and contains a few connections to other Autonomous Systems.
After specifying autonomous systems numbers for the BGP confederation, recycle the peers to update
their configuration.
Related
Commands
bgp dampening
c e
Enable BGP route dampening and configure the dampening parameters.
Syntax
bgp dampening [half-life reuse suppress max-suppress-time] [route-map map-name]
To disable route dampening, use the no bgp dampening [half-life reuse suppress
max-suppress-time] [route-map map-name] command.
Parameters
Defaults
Disabled.
Version 8.4.2.1 Introduced on C-Series and S4810.
Version 8.2.1.0 Introduced on E-Series ExaScale
Version 7.4.1.0 Introduced on E-Series TeraScale
bgp confederation identifier Configure a confederation ID.
half-life
(OPTIONAL) Enter the number of minutes after which the Penalty is
decreased. After the router assigns a Penalty of 1024 to a route, the Penalty
is decreased by half after the half-life period expires.
Range: 1 to 45.
Default: 15 minutes
reuse
(OPTIONAL) Enter a number as the reuse value, which is compared to the
flapping route’s Penalty value. If the Penalty value is less than the reuse
value, the flapping route is once again advertised (or no longer suppressed).
Range: 1 to 20000.
Default: 750
suppress
(OPTIONAL) Enter a number as the suppress value, which is compared to
the flapping route’s Penalty value. If the Penalty value is greater than the
suppress value, the flapping route is no longer advertised (that is, it is
suppressed).
Range: 1 to 20000.
Default: 2000
max-suppress-time
(OPTIONAL) Enter the maximum number of minutes a route can be
suppressed. The default is four times the half-life value.
Range: 1 to 255.
Default: 60 minutes.
route-map map-name (OPTIONAL) Enter the keyword route-map followed by the name of a
configured route map.
Only match commands in the configured route map are supported.