>   Can  anyone give me a pointer to a few networking examples in
> OCaml using sockets and connects ??

Unison uses sockets plus ocaml's marshalling feature to implement its
own remote procedure call mechanism.  The code is a bit complex, since
it handles propagation of exceptions, etc., across address spaces,
bidirectional RPC, etc., but it's fairly well modularized.

    http://www.cis.upenn.edu/~bcpierce/unison

  -- B