ISIS/6/T1TMR_LV1_EXPIR_GR_C:In ISIS [process-id], level-1 T1 timer expired on [interface-name] during ISIS GR. (Counter=[USHORT])
The Level-1 T1 timer was stopped on an interface during IS-IS GR.
[process-id]
Indicates the ID of an IS-IS process.
[interface-name]
Indicates the name of an interface.
Counter
Indicates a counter.
The Level-1 T1 timer timed out for the second time during IS-IS GR.