extremely high latency is in my experience caused by interference/collisions that result in queueing and retransimission on the ap's . I've personally witnessed 1200ms rtts to the router on the other side of the ap in certain environments (salt lake city ietf in this case).
Right now from where I'm sitting it's about 4.5ms to the other side of the room from where I'm sitting. On Tue, 18 Feb 2003, Paul Cox wrote: > Hi, > > Thinking the BAWUG group would have a great deal of experience in > deploying all kinds of links with 802.11 products, I've searched the > BAWUG archives looking for clues as to what kinds of latencies you have > encountered. > > The archives indicate that link layer retransmissions caused by faulty > equipment or a low S/N ratio could cause the latency on a particular > link to increase from a few milliseconds up to hundreds of milliseconds > and perhaps beyond a full second. There's also mention that links in a > heavily utilized mesh would also suffer from high latency. > > I'm looking for confirmation of these conclusions from those that have > first-hand experience with long-haul 802.11 links. I have been unable to > locate a list of the links in the bay area along with the latency > between nodes. If you could post your observations/data to the list it > would be quite useful. Are those running links over huge distances or > noisy environments seeing latencies in the hundreds of milliseconds or > more? > > Thanks, > > Paul Cox > > -- > general wireless list, a bawug thing <http://www.bawug.org/> > [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless > -- -------------------------------------------------------------------------- Joel Jaeggli Academic User Services [EMAIL PROTECTED] -- PGP Key Fingerprint: 1DE9 8FCA 51FB 4195 B42A 9C32 A30D 121E -- In Dr. Johnson's famous dictionary patriotism is defined as the last resort of the scoundrel. With all due respect to an enlightened but inferior lexicographer I beg to submit that it is the first. -- Ambrose Bierce, "The Devil's Dictionary" -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
