Symptom

ASR1000 with NSR and LDP GR enabled rebooted unexpectedly after the LDP neighbor flap : UNIX-EXT-SIGNAL: Segmentation fault(11), Process = cpf_process_tpQ Exemplary logs prior to the crash: %CLNS-5-ADJCHANGE: ISIS: Adjacency to Router1 (GigabitEthernet0/0/1) Down, bfd neighbor down %LINK-3-UPDOWN: Interface GigabitEthernet0/0/1, changed state to down %LDP-5-SP: 10.1.1.5:0: session hold up initiated %LINK-3-UPDOWN: SIP1/0: Interface GigabitEthernet0/0/1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0/1, changed state to down

Conditions

The crash was observed on ASR1000 running IOS-XE 3.13.2.S with the following MLPS LDP features enabled: mpls ldp nsr mpls ldp graceful-restart mpls ldp tcp pak-priority mpls ldp session protection

Workaround

unknown

Further Problem Description