3com S7906E Manuel De Montage

 

1-33 

Enter system view 

— 

Enter BGP view 

bgp as-number 

— 

Configure the global keepalive 
interval and holdtime 

timer keepalive keepalive hold 
holdtime 

Configure the keepalive interval and 
holdtime for a peer/peer group 

peer { group-name | 
ip-address } timer keepalive 
keepalive hold holdtime 

Optional 

By default, the keepalive 
interval is 60 seconds, 
and holdtime is 180 
seconds. 

 

z 

The maximum keepalive interval should be one third of the holdtime and no less than 1 second. 

The holdtime is no less than 3 seconds unless it is set to 0. 

z 

The intervals set with the peer timer command are preferred to those set with the timer command. 

z 

If the router has established a neighbor relationship with a peer, you need to reset the BGP 

connection to validate the new set timers. 

 

Follow these steps to configure the interval for sending the same update to a peer/peer group: 

Enter system view 

— 

Enter BGP view 

bgp as-number 

— 

Configure the interval for sending the 
same update to a peer/peer group 

peer { group-name | 
ip-address } 
route-update-interval 
interval 

Optional 

The intervals for sending 
the same update to an 
iBGP peer and an eBGP 
peer default to 15 
seconds and 30 seconds 
respectively.  

 

After modifying a route selection policy, you have to reset BGP connections to make the new one take 

effect, causing short time disconnection.  

The current BGP implementation supports the route-refresh capability, with which, a router can 

dynamically refresh its BGP routing table when the route selection policy is modified, without tearing 

down BGP connections. If a BGP peer does not support route-refresh, you need to save updates from 

the peer on the local router. After that, when a route selection policy is modified, the router can refresh 

its BGP routing table by using such updates without tearing down BGP connections.