H3C Technologies H3C S10500 Series Switches - Manual (Page 81)

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Configuring LDP GR
Follow these steps to configure LDP GR:
To do… Use the command… Remarks
Enter system view system-view —
Enter MPLS LDP view mpls ldp —
Enable MPLS LDP GR graceful-restart
Required
Disabled by default
Set the FT reconnect time
graceful-restart timer reconnect
timer Optional
300 seconds by default
Set the LDP neighbor liveness time
graceful-restart timer
neighbor-liveness timer
Optional
120 seconds by default
Set the LDP recovery time
graceful-restart timer recovery
timer Optional
300 seconds by default
Gracefully restarting MPLS LDP
To test whether the MPLS LDP GR configuration has taken effect, you can perform graceful restart of MPLS
LDP. During the LDP restart process, you can see whether the packet forwarding path is changed and
whether packet forwarding is interrupted.
Use the following command to restart MPLS LDP gracefully:
To do… Use the command… Remarks
Restart MPLS LDP gracefully graceful-restart mpls ldp
Required
Available in user view
NOTE:
The graceful-restart mpls ldp command is only used to test MPLS LDP GR function. It does not perform
active/standby switchover. Do not perform this operation in other cases.
Configuring MPLS statistics collection and reading
Setting MPLS statistics reading interval
To use display commands to view LSP statistics, you must first set the statistics reading interval.
Follow these steps to set MPLS statistics reading interval:
To do… Use the command… Remarks
Enter system view system-view —
Enter MPLS view mpls —
Set LSP statistics reading interval statistics interval interval-time
Required
0 seconds by default: the system
does not read LSP statistics.