A few ideas concerning real-time video over TCP (in July 1997; things
     may change in the future). 

<UL>
<LI> <TT>TCP_NODELAY</TT> should be activated (Nagle's algorithm
     disabled in other words). However, we've to be aware that this
     may hurt the network...
<LI> The picture should be taken just before sending it (NOT using a
     buffer ring, as possible for example with the SGI's). The reason
     is that, given the transmission time, using a buffer ring may
     give you a <I>very</I> late image.
</UL>