4. Check
session information by issuing the commands show mpls traffic-eng-
lsp session and show mpls traffic-eng-lsp session <session
name>
The resulting display will record session failure reasons like ingress problems, CSPF
configuration errors, routing problems, MPLS label allocation failures, etc. The below table
explains
the major error codes/sub error codes, as well as root cause and corrective action for
these error codes.
Table 46: Error scenarios
Error scenario Cause/Corrective Action
Routing Problem Routing issues. RSVP trying to send packets
but not able to send to peer. Problem can be
solved by adding the route to the destination
configuration
No route available toward destination No route to destination. Add route to
destination and ping to the peer
Non RSVP-TE router encountered Interface is not rsvp enabled. Enable rsvp on
the required interfaces
MPLS label allocation failure Interface is not rsvp enabled. Enable rsvp on
the required interfaces
Troubleshooting RSVP-TE LSP
Troubleshooting August 2013 119
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