H3C Technologies H3C S10500 Series Switches - Manual (Page 84)

73
Configuring periodic LSP tracert
The periodic LSP tracert function is for locating faults of an LSP periodically. It detects the consistency of
the forwarding plane and control plane and records detection results into logs. You can checks the logs
to know whether an LSP has failed.
If you configure BFD as well as periodic tracert for an LSP, once the periodic LSP tracert function detects
an LSP fault or inconsistency of the forwarding plane and control plane, the BFD session for the LSP is
deleted and a new BFD session is established according to the control plane.
Follow these steps to configure the periodic LSP tracert function:
To do… Use the command… Remarks
Enter system view system-view —
Enable LSP verification and enter
the MPLS LSPV view
mpls lspv
Required
Not enabled by default
Configure periodic tracert for an
LSP to the specified FEC destination
periodic-tracert
destination-address mask-length
[ -a source-ip | -exp exp-value | -h
ttl-value | -m wait-time | -t time-out
| -u retry-attempt ] *
Required
Not configured by default
Enabling MPLS trap
With the MPLS trap function enabled, trap packets of the notifications level are generated to report
critical MPLS events. Such trap packets are sent to the information center of the device. Whether and
where the packets are output depend on the configurations of the information center. For information on
how to configure the information center, see Network Management and Monitoring Configuration
Guide.
Follow these steps to enable the MPLS trap function:
To do… Use the command… Remarks
Enter system view system-view —
Enable the MPLS trap function snmp-agent trap enable mpls
Required
Disabled by default
NOTE:
For more information about the snmp-agent trap enable mpls command, see the snmp-agent trap
enable command in
Network Management and Monitoring Command Reference.