LTM ramcache entries

Hi all,

 

I'm facing a case about ltm ram cache entries. I have ram cache profile with max age 604800(7 days) sec. But recieved time and expires time range of some entries are different.Is that normal ? By the way cache size is full. Maybe that is answer. Sample;

 

Received 2017-09-25 18:09:30 Last Sent 2017-09-25 18:09:30 Expires 2017-10-02 18:09:30

 

Received 2017-09-25 07:44:10 Last Sent 2017-09-26 16:53:01 Expires 2017-09-30 09:10:12

 

Received 2017-09-25 05:19:57 Last Sent 2017-09-26 16:34:42 Expires 2017-09-27 03:51:45

 

These entries belong to same profile.