SSL Persistence and ServerSSL

Hi

 

I have been reading this Support Article which says...

 

You cannot use SSL persistence with the following configurations:

 

With a virtual server configured with a Server SSL profile. If the BIG-IP system is configured to terminate and re-encrypt SSL connections, a different SSL session ID is used for the node-side connection than is used for the client-side connection. As a result, you cannot use SSL session ID persistence in combination with re-encryption.

 

Can anyone expand on this for me? Does this persist method not take the clientside Session ID and persist on that? Why, if the clientside and serverside Session ID doesn't match then this method doesn't work.....or am I missing something....?