3com S7906E 설치 설명서

 

1-34 

After route refresh is enabled for peers and then a policy is modified, the router advertises a 

route-refresh message to the peers, which then resend their routing information to the router. In this way, 

the router can perform dynamic route update and apply the new policy without tearing down BGP 

connections. 

Follow these steps to enable BGP route refresh for a peer/peer group: 

Enter system view 

— 

Enter BGP view 

bgp as-number 

— 

Enable BGP route refresh for a 
peer/peer group 

peer { group-name | 
ip-address } 
capability-advertise 
route-refresh 

Optional 

Enabled by default 

 

If a BGP peer does not support route-refresh, you need to save updates from the peer on the local 

router by using the peer keep-all-routes command. When a route selection policy is modified, you can 

use the refresh bgp command to refresh the BGP routing table by applying the new policy. 

Following these steps to save all route updates from a peer/peer group: 

Enter system view 

— 

Enter BGP view 

bgp as-number 

— 

Disable BGP route-refresh and 
multi-protocol extension capability for a 
peer/peer group 

peer { group-name | 
ip-address } 
capability-advertise 
conventional 

Optional 

Enabled by default 

Save all routes from a peer/peer group

peer { group-name | 
ip-address } keep-all-routes

Optional 

Not saved by default 

Return to user view 

— 

Perform manual soft reset on BGP 
connections 

refresh bgp { all | ip-address 
| group group-name | 
external | internal } { export 
| import } 

Required 

 

The BGP Outbound Route Filter (ORF) feature allows a BGP speaker to send to its BGP peer a set of 

ORFs through Route-refresh messages. The peer then applies the ORFs, in addition to its local routing