Enable BGP4 Route Dampening

1. Access global configuration mode.
   

   device# configure terminal

2. Access BGP configuration mode.
   

   device(config)# router bgp

3. Access address-family ipv4 unicast configuration mode.
   

   device(config-bgp-router)# address-family ipv4 unicast

4. Enable the default dampening parameter values.
   

   device(config-bgp-ipv4u)# dampening

This example sets the half-life parameter to 20, the reuse parameter to 200, the suppress parameter to 2500, and the max-suppress-time parameter to 40.

device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv4 unicast
device(config-bgp-ipv4u)# dampening 20 200 2500 40