Symptom
"clear crypto ikev2 stats" clears active SA and negotiating SA counter in "show crypto ikev2 stats". Ideally the command should only clear other counters like - rejected, IKEv2 packets dropped at dispatch, Incoming IKEV2 Cookie Challenged Requests etc.
Conditions
>> IKEv2 being used.
>> "clear crypto ikev2 stats" command executed.
Workaround
Refer the output of "show crypto ikev2 count" to check the number of current active SA.