ISIS/6/T1TMR_EXPIR_GR_CMD:In ISIS [process-id], level-[level] T1 timer expired on [interface-name] during ISIS GR and RR is set.
The Level-2 T1 timer was stopped on an interface during IS-IS GR.
1: level-1
2: level-2
The Level-2 T1 timer timed out for the second time during IS-IS GR.