Rick Jones wrote: > David Woolley <da...@ex.djwhome.demon.invalid> wrote: >> For a start, if it dropped a source on the first missing reply it >> would result in clock hopping, which is undesirable. UDP is >> unrliable, and you cannot rely on getting every query returned. > > In that sense then, even TCP is unreliable for it cannot guarantee > getting every query returned. What distinguishes TCP from UDP is that > TCP will make multiple attempts to deliver the data and then signal > the probable (but not certain) non-delivery of data. > > rick jones
More importantly, TCP requires a 3-way handshake before it can deliver the packet, so there is setup time, delivery and tear-down time involved as well just to deliver one small packet. Danny -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
