----- Original Message -----
From: "Bill Wichers" <billw@waveform.net>
I show pretty clean to the server itself from a Level(3) connection in Detroit, but I was seeing loss to the router one hop up from it (which seems to be getting better with time).
Just a reminder to all: intermediate hops on a traceroute may show high packet drops *without that router actually dropping any real traffic packets*. Many routers are required by their design to force ICMP traffic up into the CPU, where actual packets may remain down on the much more efficient cross-linecard-path, which means that if the router gets too busy doing "Real work", the ICMP will be the first thing to go. Evidence of this is usually a large degree of packet loss which starts and ends with one hop in your trace; if *everything past a certain point* seems to be dropping roughly the same percentage of traffic, *that* is probably the outbound link from the router. Cheers, -- jra -- Jay R. Ashworth Baylink jra@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA #natog +1 727 647 1274