Cisco Nexus 7000 Series - Configuring Route Dampening

Send document comments to nexus7k-docfeedback@cisco.com.
11-28
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
Chapter 11 Configuring Advanced BGP
Configuring Advanced BGP
This example shows how to configure the router as a route reflector and add one neighbor as a client:
switch(config)# router bgp 65536
switch(config-router)# neighbor 192.0.2.10 remote-as 65536
switch(config-router-neighbor)# address-family ip unicast
switch(config-router-neighbor-af)# route-reflector-client
switch(config-router-neighbor-af)# copy running-config startup-config
Configuring Route Dampening
You can configure route dampening to minimize route flaps propagating through your iBGP network.
To configure route dampening, use the following command in address-family or VRF address family
configuration mode:
Step 9
route-reflector-client
Example:
switch(config-router-neighbor-af)#
route-reflector-client
Configures the device as a BGP route reflector and
configures the neighbor as its client. This command
triggers an automatic notification and session reset for
the BGP neighbor sessions.
Step 10
show bgp {ip | ipv6} {unicast |
multicast} neighbors
Example:
switch(config-router-neighbor-af)#
show bgp ip unicast neighbors
(Optional) Displays the BGP peers.
Step 11
copy running-config startup-config
Example:
switch(config-router-neighbor-af)#
copy running-config startup-config
(Optional) Saves this configuration change.
Command or Action Purpose
Command Purpose
dampening [{ half-life reuse-limit
suppress-limit max-suppress-time
|
route-map
map-name }]
Example:
switch(config-router-af)# dampening
route-map bgpDamp
Disables capabilities negotiation. The parameter
values are as follows:
• half-life—The range is from 1 to 45.
• reuse-limit—The range is from 1 to 20000.
• suppress-limit—The range is from 1 to 20000.
• max-suppress-time—The range is from 1 to
255.