MPLS Label Allocation Failure Event

LSP Event

MPLS label allocation failure

Sample Output

user@R1> show mpls lsp extensive
[...Output truncated...]
   24 Jan 20 09:25:35 CSPF failed: no route toward 10.0.0.6
   23 Jan 20 09:25:35 Clear Call
   22 Jan 20 09:25:35 Deselected as active
   21 Jan 20 09:25:35  10.1.13.1: MPLS label allocation failure
   20 Jan 20 09:25:34  MPLS label allocation failure
   19 Jan 20 09:25:34 Down 
[...Output truncated...]

Meaning

This LSP event indicates that the MPLS protocol or the family mpls statement were not configured properly. When the LSP event is preceded by an IP address, the address is typically the router that has the MPLS configuration error.

Cause

This LSP event is caused by the omission of interfaces at the [edit protocols mpls] hierarchy level or failure to configure the family mpls statement at the [edit interfaces type-fpc/pic/port] hierarchy level. The family mpls statement specifies to the interface ASICs to permit protocol code 0x8847 (unicast MPLS) into the router.

Action

Include interfaces at the [edit protocols mpls] hierarchy level, or include the family mpls statement at the [edit interfaces type-fpc/pic/port] hierarchy level. You must configure the family mpls statement, in the same way that you must configure the family iso statement for IS-IS.

Note: Do not configure the family mpls statement on the loopback (lo0) interface.