3com 8807 Reference Guide

C

HAPTER

 27: BGP C

ONFIGURATION

 C

OMMANDS

By default, no autonomous system is configured as a member of the 
confederation.

Before this command is performed, the confederation ID should be configured by 
the confederation id command. Otherwise this configuration is invalid. The 
configured ASs in this command are inside the confederation and each AS uses 
fully meshed network. The confederation appears as a single AS to the routers 
outside it.

Related command: confederation nonstandard, confederation id.

# Configure the confederation contains AS 2001 and 2002.

[3Com-bgp]confederation peer-as 2000 2001 

dampening [ half-life-reachable half-life-unreachable reuse suppress ceiling ] [ 
route-policy policy-name ]

BGP view

half-life-reachable: Specifies the semi-dampening when the route is reachable. The 
range is 1 to 45 minutes. By default, the value is 15 minutes.

half-life-unreachable: Specifies the semi-dampening when the route is 
unreachable. The range is 1 to 45 minutes. By default, the value is 15 minutes.

reuse: When the penalty is reduced under this value, the route is reused. The 
range is 1 to 20000. By default, the value is 750.

suppress: When the penalty exceeds this value, the route is suppressed. The range 
is 1 to 20000. By default, the value is 2000.

ceiling: The upper threshold of the penalty. The range is 1001 to 20000. By 
default, the value is 16000.

policy-name: Configures route policy name.

If these parameters are not set, their default values will be used.

The parameters are mutually dependent. Once one of these parameters is 
configured, all other parameters should also be specified.

Use the dampening command to make BGP route attenuation valid or modify 
various BGP route attenuation parameters.

Use the undo dampening command to make the characteristics invalid.