Understanding CSPF Events

This chapter lists and describes Constrained Shortest Path First (CSPF) events that occur in the output of the show mpls lsp extensive command, including sample output of the label-switched path (LSP) event, an explanation of what the event means, the possible cause of the event, and any possible actions that you can take to remedy the situation. (See Table 7.)

Table 7: Checklist for Understanding CSPF Events

Understanding CSPF Events Tasks	Possible Action or Command
Displaying CSPF Events	show mpls lsp extensive
CSPF Failed: No Route Toward Event	show ted database detail Determine if there is a route to the destination. [edit protocols mpls label-switched-path lsp-path-name] no-cspf
CSPF: Link Down/Deleted Event	Investigate possible causes for the link failure.
CSPF: Computation Result Accepted Event	Not applicable.
CSPF: Computation Result Ignored Event	Not applicable.
CSPF: Could Not Determine Self Event	Take appropriate action: Enable traffic engineering Configure the family iso statement or address statement Include interfaces at the [edit interfaces], [edit protocols mpls], or [edit protocols isis] hierarchy level
CSPF: Can't Find Non-Overlapping Path Event	Not applicable.
CSPF: Reroute Due to Re-Optimization Event	Not applicable.
Retry Limit Exceeded Event	clear mpls lsp
CSPF Failed: Empty Route Event	Enter the correct IP address at the [edit protocols mpls label-switched-path lsp-path-name] hierarchy level.