Cluster to cisco L3 port

[CheckMate]

Hello All,

I am trying to setup and L3 port on a cisco switch to connect to a checkpoint Cluster-XL, i cannot figure out how to configure the interfaces on the checkpoint members to manage the traffic coming from the switch.

I have tried adding two switch ports into a port-channel with one of each ports going to the cluster members, however this does not seem to work.  

Can someone please advise on the correct way to do this?