Enable BGP4 Route Dampening

You can enable the default dampening parameters or specify the values you want.

Procedure

Access global configuration mode.
```
device# configure terminal
```
Access BGP configuration mode.
```
device(config)# router bgp
```
Access address-family ipv4 unicast configuration mode.
```
device(config-bgp-router)# address-family ipv4 unicast
```
Enable the default dampening parameter values.
```
device(config-bgp-ipv4u)# dampening
```

Example

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