HP 5920 Series Command Reference Manual page 290

Predefined user roles
network-admin
Parameters
half-life-reachable: Specifies a half-life for active routes, in the range of 1 to 45 minutes. By default, the
value is 15 minutes.
half-life-unreachable: Specifies a half-life for suppressed routes, in the range of 1 to 45 minutes. By
default, the value is 15 minutes.
reuse: Specifies a reuse threshold value for suppressed routes, in the range of 1 to 20000. A suppressed
route whose penalty value decreases under the value is reused. By default, the reuse value is 750. The
reuse threshold must be less than the suppression threshold.
suppress: Specifies a suppression threshold in the range of 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 in the range of 1001 to 20000. The value must be bigger than
the suppress value. By default, the value is 16000.
route-policy route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63
characters.
Usage guidelines
The command dampens only EBGP routes.
Examples
# In BGP IPv4 unicast address family view, configure BGP route dampening.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] address-family ipv4 unicast
[Sysname-bgp-ipv4] dampening 10 10 1000 2000 10000
# In BGP-VPN IPv4 unicast address family view, configure BGP route dampening.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ip vpn-instance vpn1
[Sysname-bgp-vpn1] address-family ipv4 unicast
[Sysname-bgp-ipv4-vpn1] dampening 10 10 1000 2000 10000
# In BGP IPv6 unicast address family view, configure BGP route dampening.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] address-family ipv6 unicast
[Sysname-bgp-ipv6] dampening 10 10 1000 2000 10000
# In BGP-VPN IPv6 unicast address family view, configure BGP route dampening.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ip vpn-instance vpn1
[Sysname-bgp-vpn1] address-family ipv6 unicast
[Sysname-bgp-ipv6-vpn1] dampening 10 10 1000 2000 10000
Related commands
display bgp dampening parameter ipv4 unicast
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