F5 LTM Tagged Interface not working

Hi guys, I am practicing f5 ltm and using tagged interfaces to connect to my servers. Basically the design is as follows :-

 

F5 1.2(tagged) ------- ( TrunkPort )Cisco Switch (Access port)------ Servers vlan 10 and vlan 20

 

I have enabled dot1q on the trunk on cisco switch. M not able to ping the self ip of f5 from the servers. Please help me

 

thanks