Symptom

A router running affected software could experience a wedged input queue with cTCP configured, causing the interface to stop processing traffic: Router#show interfaces GigabitEthernet0/3 is up, line protocol is up Input queue: 76/75/205004/45 (size/max/drops/flushes); Total output drops: 0 <<<< size exceeds max Router#show buffers usage Resource User: Crypto cTC count: 76 Caller pc : 0x 1E0119B count: 3 Resource User: Init count: 3 Number of Buffers used by packets generated by system: 948 Number of Buffers used by incoming packets: 76 <<<<<<<

Conditions

EZVPN is configured with cTCP, input queue becomes wedged on an interface, 'show buffers usage' indicates buffers are owned by the "Crypto cTC" component.

Workaround

None known

Further Problem Description