3com S7906E Manuel De Montage

 

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Enter system view 

system-view 

— 

Enter BGP view 

bgp as-number 

— 

globally 

Optional 

Enabled by default 

Enable the 
logging of 
peer state 
changes 

for a peer or 
peer group 

peer { group-name | ip-address } 
log-change 

Optional 

Enabled by default 

 

By default, the BGP keepalive interval is 60 seconds and the holdtime interval is 180 seconds. If neither 

the holdtime interval nor the keepalive interval is configured as 0, the holdtime interval must be at least 

three times the keepalive interval. This makes the detection of neighbors rather slow, and a large 

quantity of packets will be dropped when being transmitted or received through a high-speed interface. 

Therefore, BFD was introduced to solve this problem. It can quickly finds neighbors and thus reduce 

network convergence time.  

Follow these steps to enable BFD for a BGP peer:  

Enter system view 

— 

Enter BGP view 

bgp as-number 

— 

Enable BFD for the specified 
BGP peer 

peer ip-address bfd 

Required 

Not enabled by default 

 

z 

At present, you can configure BFD for IPv4 BGP neighbors only. Before configuring BFD for BGP, 

you need to enable BGP.  

z 

If GR capability is enabled for BGP, use BFD with caution.  

z 

For BFD configuration, refer to BFD Configuration in the High Availability Volume.  

 

Display peer group information 

display bgp group [ group-name ] 

Display advertised BGP routing 
information  

display bgp network 

Display AS path information 

display bgp paths [ as-regular-expression ] 

Available in 
any view