3com S7906E Guide De Référence

 

1-10 

half-life-unreachable: Specifies a half-life for suppressed routes from 1 to 45 minutes. By default, the 

value is 15 minutes. 

reuse: Specifies a reuse threshold value for suppressed routes from 1 to 20000. A suppressed route 

whose penalty value decreases under the value is reused. By default, the reuse value is 750. 

suppress: Specifies a suppression threshold from 1 to 20000. The route with a penalty value higher than 

the threshold is suppressed. The default value is 2000. 

ceiling: Specifies a ceiling penalty value from 1001 to 20000. The value must be bigger than the 

suppress value. By default, the value is 16000. 

route-policy-name: Routing policy name, a string of 1 to 19 characters. 

half-life-reachable, half-life-unreachable, reuse, suppress and ceiling are mutually dependent. Once 

any one is configured, all the others should also be specified accordingly.  

Use the dampening command to enable BGP route dampening and/or configure dampening 

parameters.  

Use the undo dampening command to disable route dampening. 

By default, no route dampening is configured. 

The command dampens only EBGP routes rather than IBGP routes. 

Related commands: reset bgp dampening,  reset bgp flap-info,  display bgp routing-table 

dampened,  display bgp routing-table dampening parameter and display bgp routing-table 

flap-info. 

# In BGP view, configure BGP route dampening. 

<Sysname> system-view 

[Sysname] bgp 100 

[Sysname-bgp] dampening 15 15 1000 2000 10000 

# In BGP-VPN instance view, configure BGP route dampening (the VPN has been created). 

<Sysname> system-view 

[Sysname] bgp 100 

[Sysname-bgp] ipv4-family vpn-instance vpn1 

[Sysname-bgp-vpn1] dampening 15 15 1000 2000 10000 

default ipv4-unicast  

BGP view 

2: System level