3com S7906E Manuel De Montage

 

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A device can act as a GR Restarter and GR Helper at the same time. 

 

Follow these steps to configure BGP GR: 

Enter system view 

— 

Enable BGP, and enter its view 

bgp as-number 

— 

Enable GR Capability for BGP 

Required 

Disabled by default 

Configure the maximum time 
allowed for the peer  to 
reestablish a BGP session 

graceful-restart timer 
restart timer 

Optional 

150 seconds by default 

Configure the maximum time to 
wait for the End-of-RIB marker 

graceful-restart timer 
wait-for-rib timer 

Optional 

180 seconds by default 

 

z 

In general, the maximum time allowed for the peer (the GR restarter) to reestablish a BGP session 

should be less than the Holdtime carried in the Open message.  

z 

The End-Of-RIB (End of Routing-Information-Base) indicates the end of route updates. 

 

After Trap is enabled for BGP, BGP generates Level-4 traps to report important events of it. The 

generated traps are sent to the Information Center of the device. The output rules of the traps, namely, 

whether to output the traps and the output direction, are determined according to the Information Center 

configuration. (For Information Center configuration, refer to Information Center Configuration in the 

System Volume.) 

Follow these steps to enable Trap: 

Enter system view 

system-view 

— 

Enable Trap for BGP 

snmp-agent trap enable bgp 

Optional 

Enabled by default  

 

Follow these steps to enable the logging of peer state changes: