Technical Documentation

CSPF Failed: Empty Route Event

LSP Event

CSPF failed: empty route

Sample Output

user@R1> show mpls lsp extensive
[...Output truncated...]
From: , State: Dn, ActiveRoute: 0, LSPname: R1-to-R6
  ActivePath: (none)
  LoadBalance: Random
  Encoding type: Packet, Switching type: Packet, GPID: IPv4
  Primary                    State: Dn
    Will be enqueued for recomputation in 23 second(s).
    1 Jan 13 12:59:47  CSPF failed: empty route
  Created: Thu Jan 13 12:59:48 2005
Total 1 displayed, Up 0, Down 1
[...Output truncated...]


This LSP event indicates that the destination route for the LSP is incorrect.


The IP address in the to statement at the [edit protocols mpls label-switched-path lsp-path-name ] hierarchy level is incorrectly configured as the loopback (lo0) interface of this router itself, as indicated by the From address ( which is identical to the empty route address (


Enter the correct IP address for the egress router at the [edit protocols mpls label-switched-path lsp-path-name] hierarchy level.

Published: 2010-01-30