Command Line Reference Guide
Defaults Not configured.
Command Modes ROUTER BGP
Command History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
All the routers in the Confederation must be 4- or 2-byte identified routers. You cannot mix
them.
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 confederation identifier – configures a confederation ID.
bgp four-octet-as-support – enables 4-byte support for the BGP process.
bgp dampening
Enable BGP route dampening and configure the dampening parameters.
S5000
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
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. The
range is 1 to 45. The default is 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). The range is 1 to 20000. The default is 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). The range is 1 to 20000. The
default is 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. The range is
1 to 255. The default is 60 minutes.
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