3com S7906E Instruccion De Instalación

 

1-27 

Enable MPLS LDP GR 

Required 
Disabled by default 

Set the FT reconnect timer 

graceful-restart timer 
reconnect timer 

Optional 
300 seconds by default 

Set the LDP neighbor liveness 
timer 

 timer 

Optional 
120 seconds by default 

Set the LDP recovery timer 

 timer 

Optional 
300 seconds by default 

 

During MPLS LDP GR, a GR helper takes the lesser one between its LDP neighbor liveness time and 
the GR restarter’s FT reconnect time as its FT reconnect interval, and takes the lesser one between its 
LDP recovery time and that of the GR restarter as its LDP recovery interval. 

 

To test MPLS LDP GR without main/backup switchover, you can restart MPLS LDP gracefully. You are 
not recommended to perform this operation in normal cases. 

Follow these steps to restart MPLS LDP gracefully: 

Restart MPLS LDP gracefully 

 

Required 
Available in user view 

 

Bidirectional forwarding detection (BFD) provides a mechanism to quickly detect and monitor the 
connectivity of links in networks. MPLS LDP can use it to detect neighbor failures. After a failure is 
detected, the MPLS forwarding plane can switch the service from the active path to a standby path. You 
need to configure MPLS-related functions before enabling BFD for MPLS LDP. 

Follow these steps to configure BFD for MPLS LDP: 

Enter system view 

— 

Enter MPLS LDP remote 
peer view  

mpls ldp remote-peer 
remote

-peer-name 

— 

Enable BFD for MPLS LDP 

 

Required 
Disabled by default