See attached what i am trying to achieve. I will be deploying a cache solution, but instead of using the more complex and cumbersome PBR with firewall filter etc. i want do add the devices in the network without making any major changes on the routing, making it simple and still scalabe. So i was thinking to deploy the units in transparent mode on each physcal member. Therefore making use of the build in load balancing mechanism of EA (no need for dedicated LB) and also make use of the build in redudndacny of AE.
In this deployment LACP can not be used because the links arent directly connected between the switches so lL3 microBFD on the AE can be enabled between the routers and interfaces. So should a cache unit stop operating the BDF will take the coresponding members down from the bundle. Should the entire AE0 go down the bypass link will be used by means of IGP.
So with the above all should work fine, unless there are asymetric traffic on the AE links it wont, as northbound traffic can go via one cache and return via another. Let me know what you think.