3com S7906E 설치 설명서

 

1-37 

Enter the view of the interface 
directly connected to the 
protected node or PLR 

 interface-type 

 

–– 

Enable RSVP hello extension 
on the interface 

Required 
Disabled by default 

 

RSVP hello extension is configured to detect node failures caused by problems such as signaling error 
other than failures caused by link failures.  

 

Cooperation of MPLS RSVP-TE and BFD is mainly used for link status detection of FRR. When BFD 
detects a link failure, it immediately notifies the failure to FRR, which will then reroute traffic from the 
primary LSP to the bypass LSP. 

Follow these steps to configure cooperation of MPLS RSVP-TE and BFD: 

Enter system view 

–– 

Enter view of the interface 
enabled with MPLS RSVP-TE 

 interface-type 

interface-number 

–– 

Enable BFD for MPLS 
RSVP-TE 

Required 
Disabled by derfault 

 

The protection provided by FRR is temporary. Once a protected LSP becomes available again or a new 
LSP is established, traffic will be switched to the protected or new LSP. After this switchover, the PLR 
polls available bypass tunnels for the best one at the regular interval specified by the FRR polling timer: 

Follow these steps to configure the FRR polling timer: 

Enter system view of the PLR 
node 

–– 

Enter MPLS view 

–– 

Configure the FRR polling timer 

mpls te timer fast-reroute 
[ second ] 

Optional 
The FRR polling timer is 300 
seconds by default.