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HP 10500 SERIES Configuration Manual: Configuring Periodic Lsp Tracert For An Mpls Te Tunnel

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Step
2.
Enable LSP inspection and
enter MPLS LSPV view.
3.
Return to system view.
4.
Enter the tunnel interface view
of an MPLS TE tunnel.
5.
Configure BFD to test the
connectivity of the MPLS TE
tunnel.
6.
Configure MPLS TE to tear
down a failed RSVP TE tunnel
and reestablish it.

Configuring periodic LSP tracert for an MPLS TE tunnel

The periodic LSP tracert function for an MPLS TE tunnel is for locating faults of the MPLS TE tunnel
periodically. It detects the consistency of the forwarding and control plane and records detection results
into logs. You can examine the logs to see whether an MPLS TE tunnel has failed.
If you configure BFD as well as periodical tracert for an MPLS TE tunnel, once the periodical LSP tracert
function detects a fault or inconsistency of the forwarding plane and control plane of the MPLS TE tunnel,
the BFD session for the tunnel is deleted and a new BFD session is established according to the control
plane.
After you configure periodic LSP tracert and the mpls te failure-action teardown command for an MPLS
TE tunnel, once an RSVP-TE tunnel failure occurs, the periodic LSP tracert function can detect the failure,
and if RSVP does not re-establish the RSVP-TE tunnel within a specific period of time, MPLS TE removes the
failed RSVP-TE tunnel and then re-establishes it.
To configure periodic LSP tracert for an MPLS TE tunnel:
Step
1.
Enter system view.
2.
Enable LSP verification and
enter MPLS LSPV view.
3.
Return to system view.
4.
Enter the tunnel interface view
of an MPLS TE tunnel.
5.
Enable periodic LSP tracert for
the MPLS TE tunnel.
Command
mpls lspv
quit
interface tunnel tunnel-number
mpls te bfd enable [ discriminator
local local-id remote remote-id ]
mpls te failure-action teardown
Command
system-view
mpls lspv
quit
interface tunnel tunnel-number
mpls te periodic-tracert [ -a
source-ip | -exp exp-value | -h
ttl-value | -m wait-time | -t time-out
| -u retry-attempt ] *
123
Remarks
By default, LSP inspection is
disabled.
For more information about the
mpls lspv command, see MPLS
Command Reference.
N/A
N/A
By default, BFD is not configured to
test the connectivity of MPLS TE
tunnels.
Optional.
Not configured by default.
Remarks
N/A
By default, LSP verification is
disabled.
For more information about the
mpls lspv command, see MPLS
Command Reference.
N/A
N/A
By default, periodic LSP tracert is
disabled for MPLS TE tunnels.

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