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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.
Description 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.
Examples # 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
Syntax default ipv4-unicast
undo default ipv4-unicast
View BGP view
Parameters None
Description Use the
default ipv4-unicast command to enable the use of IPv4 unicast
address family for all peers.