Load balance base on QoS marking or DSCP value (ie. AF21)

Hi

I've F5 acting as Gateway and load balance to ISP (Outbound load balance).

Normally I have many set of pool and I choose pool by detect source IP. >>> ie. If IP=a >> Pool a

Question is.... Can F5 choose pool by detect QoS marking (ie. AF21) ?

please note that it's just L4 virtual server cause it's internet outbound loadbalance and we didn't have ssl offloading. so we can't detect anything on L7.

Thank you