Configuring Bgp Route Dampening - HP FlexFabric 12900E Series Configuration Manual

Configuring BGP route dampening

Route dampening enables BGP to not select unstable routes as optimal routes. This feature applies
to EBGP routes but not to IBGP routes.
If an EBGP peer goes down after you configure this feature, routes coming from the peer are
dampened but not deleted.
To configure BGP route dampening (IPv4 unicast/multicast address family):
Step
1. Enter system view.
2. Enter BGP IPv4 unicast
address
BGP-VPN
address family view, or BGP
IPv4 multicast address family
view.
3. Configure
dampening.
To configure BGP route dampening (IPv6 unicast address family):
Step
1. Enter system view.
Command
system-view
•
Enter
address family view:
a. bgp as-number [ instance
b. address-family
•
Enter BGP-VPN IPv4 unicast
address family view:
c. bgp as-number [ instance
family view,
IPv4 unicast
d. ip
e. address-family
•
Enter BGP IPv4 multicast
address family view:
f. bgp as-number [ instance
g. address-family
dampening [ half-life-reachable
BGP route
half-life-unreachable
suppress ceiling | route-policy
route-policy-name ] *
Command
system-view
BGP IPv4 unicast
instance-name
[ multi-session-thread ]
ipv4
[ unicast ]
instance-name
[ multi-session-thread ]
vpn-instance
vpn-instance-name
ipv4
[ unicast ]
instance-name
[ multi-session-thread ]
ipv4
multicast
reuse
238
Remarks
N/A
]
]
N/A
]
By default, BGP
dampening is not configured.
Remarks
N/A
route