Symptom

The below fib_mgr Tracebacks are observed on CLuster when the "no interface tengig * is executed This traceback is seen along with fib_mgr crash ( CSCum48840 ) RP/0/RSP0/CPU0:CL-0#show logging | include Trace LC/1/0/CPU0:Jan 9 14:15:27.690 : fib_mgr[179]: %ROUTING-FIB-3-INTERNAL_ERR : FIB internal error: FALSE : pkg/bin/fib_mgr : (PID=258157) : -Traceback= 4d2774f4 40058a44 40059a94 400654b0 400dff04 400e0dc8 40067f34 4006838c 4006daac 4006e018 40060980 401230d4 40123f5c 40127b5c 4012bad4 4001d4ac LC/0/2/CPU0:Jan 9 14:15:30.401 : fib_mgr[179]: %ROUTING-FIB-3-INTERNAL_ERR : FIB internal error: FALSE : pkg/bin/fib_mgr : (PID=581742) : -Traceback= 4d29c4f4 40058a44 40059a94 400654b0 400dff04 400e0dc8 40067f34 4006838c 4006daac 4006e018 40060980 401230d4 40123f5c 40127b5c 4012bad4 4001d4ac

Conditions

when the "no interface tengig * is executed on cluster

Workaround

Further Problem Description