What did SEPMs push out?

Guys,

I need to find out the best way to determine what was pushed out from the SEPMs to clients on

9/19/13 2:00:00 PM CDT - 9/19/13 3:00:00 PM CDT. Networking is telling me that there was a spike in traffic coming from the SEPMs. I need report back on what it was. Can anyone point me in the right direction? Running SEPMs 12.1.2015 on server 2008.

Thanks in advance.