Setting the Maximum Size of Update Messages

You can use the neighbor maximum-update-size command to set the maximum size of update messages transmitted to a BGP peer.

For example, to set the maximum update size to 2,000 octets:



host1(config)#router bgp 100 

host1(config-router)#neighbor 10.12.2.5 maximum-update-size
2000

neighbor maximum-update-size

Use to set the maximum size for transmitted BGP update messages.
Set the maximum-update-size to a range: 256–4096.
The default is 1024 octets.
If you specify a BGP peer group by using the peerGroupName argument, all the members of the peer group inherit the characteristic configured with this command unless it is overridden for a specific peer.
BGP always accepts updates of up to 4096 octets, regardless of the setting for transmitted updated messages.
Applies to all update messages sent after you issue the command.
Use the no version to restore the default value.
See neighbor maximum-update-size.