Symptom

Standby SBC ASR1k seeing "SNMP-3-INPUT_QFULL_ERR". SNMP input queue never drops, it continues to increase until it gets stuck at 1000, causing SNMP unresponsiveness to the device.

Conditions

When polling ciscoSbcCallStatsMIB on Standby-RP ASR1k

Workaround

"default snmp-server" to soft reset the SNMP Engine to make the ASR1K respond again (refresh the input queue); then apply SNMPVIEW configuration to block the MIB. E.g. ******************************************** snmp-server view cutdown iso included snmp-server view cutdown ciscoSbcCallStatsMIB excluded snmp-server community view cutdown RO snmp-server community view cutdown RW ********************************************

Further Problem Description