Cookie persistence to Static Real servers?

I would recommend that you try not to replicate the CSS function on a step-by-step basis. The devices have different strengths and you may end up with an highly inefficient design on F5 if you try to replicate the CSS function on the F5.

If your goal is to balance based on incoming cookie, the simplest and best option is to use cookie insert. This will enable F5 to create its own cookie.

If you still want to rely on the cookie provided by server, check out K7392 for universal persistence.