This is dup of "CSCwa48496 ASA "DP to CP General Event Queue was full" due to SNMP when "limit-resource conns" limit reached". For very NAT pool exhaustion and every resource manager limit hit, the day-1 requirement is to send SNMP trap for such events. To do this datapath code punts user packet to dp-cp general event queue and the code doesn't have rate-limit to prevent high CPU on CP CPU cores.