How does F5 virtual server forwards request based on LTM policies to another virtual server

tcp ports of virtual server doesnt have to be the same as pool member's tcp port.
i can have virtual server on port 8881 and pool member A at 8882 and pool member B at 8883.

by default, f5 will buffer full payload (tcp/http/etc payload based on profiles assigned to VS) of client side before forwarding to server side and vice versa.
it ensures that only healthy payloads are forwarded to other side.
this also provides some DOS protections againts syn flood, slow loris, etc.

for your config, client doesn't create second TCP connection to second VS.
it's simply forwarding within the LTM.
more over, there is no redirection notification mechanism in IP/TCP layer.
there is redirection in HTTP layer using location header but it will break the application flow as http host header and http cookies will be different.