Change in Active Path Event

LSP Event

Change in active path

Sample Output

user@R1> show mpls lsp extensive

[...Output truncated...]

13 Sep 19 00:02:20 Deselected as active  

12 Sep 19 00:02:20 ResvTear received  

11 Sep 19 00:02:20 Down  

10 Sep 19 00:02:20 Change in active path 

9 Sep 19 00:02:20

8 Sep 19 00:02:20 10.222.28.2: Explicit Route: bad strict routeChange in active 
path

7 Sep 19 00:02:20 CSPF failed: no route toward 192.168.32.1 

6 Sep 19 00:02:20 10.222.28.2: No Route toward dest 

5 Sep 19 00:00:54 Selected as active path

4 Sep 19 00:00:54 Record Route: 10.222.28.2 10.222.4.2 10.222.44.2 

3 Sep 19 00:00:54 Up

2 Sep 19 00:00:54 Originate Call

1 Sep 19 00:00:54 CSPF: computation result accepted 

[...Output truncated...]

What It Means

This LSP event indicates that even though the active physical path has changed, the LSP stays up. Because this network configuration has an alternate (fast-reroute) path available, the event is a Change in active path rather than a Session preempted event.

Cause

The active path might have failed.