Zonghua Gu wrote:
> I noticed that the output functions of TCP and UDP call different IP layer
> functions.
> udp_sendmsg calls ip_build_xmit (calls ip_build_xmit_slow to fragment the
> msg)
> tcp_send_skb calls ip_queue_xmit (calls ip_fragment to fragment the msg)
>
> Seems to me ip_build_xmit and ip_queue_xmit are doing the essentially the
> same thing, so why two different functions?
>
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This is probably due to the fundamental difference between TCP and UDP. TCP
will send and make sure it got there while UDP just sends and assumes it got
there.
--
Jim Gleason
Site2Site Networking
[EMAIL PROTECTED]
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