Change in Active Path Event - MPLS Network Operations Guide Log Reference

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...]

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.