DB design document

Al Snell alaric@alaric-snell.com
Fri, 22 Dec 2000 19:18:32 +0000 (GMT)


On 22 Dec 2000, Derek Atkins wrote:

> > I also thought they introduced considerable latency: viz, having to
> > look up a service on one port number, (using udp, no less), and then
> > another, and then yet another lookup, just to find the service.
> 
> Not exactly.  If you do use portmap (which I wouldn't ;) then yes, you
> have one extra round trip to ask the portmap on the remote machine
> what port a particular service is.  So you only have one extra round
> trip, not two.

And if you're worried about a single extra packet round trip at connection
setup time, TCP is *right* out - it uses a *three way* handshake!

ABS

-- 
                               Alaric B. Snell
 http://www.alaric-snell.com/  http://RFC.net/  http://www.warhead.org.uk/
   Any sufficiently advanced technology can be emulated in software