MSTP/4/MSTPLOG_PROLOOPBACK_DETECTED
Message
MSTP/4/MSTPLOG_PROLOOPBACK_DETECTED:The MSTP process's port has been set to discarding state because of detecting loopback. (ProcessID=[ProcessID], InstanceID=[InstanceID], PortID=[PortID], IfIndex=[IfIndex], PortName=[PortName], PwName=[PwName])