nanog mailing list archives

RE: PSINet/Cogent Latency


From: Alex Rubenstein <alex () nac net>
Date: Mon, 22 Jul 2002 23:59:25 -0400 (Eastern Daylight Time)



Packet loss is not guaranteed, especially considering the queuing
mechanism used is not disclosed.

IE, a simply hold queue north of 2048 will cause no loss, but the
occasional jitter/latency, most likely not even measureable by common
endpoints on the net.

I'm not endorsing, just correcting.



On Mon, 22 Jul 2002, Randy Bush wrote:


40mb/s isn't "loaded" for a DS3?

if you are measuring 40mb at five min intervals, micro peaks are pegged out
causing serious packet loss.

randy


-- Alex Rubenstein, AR97, K2AHR, alex () nac net, latency, Al Reuben --
--    Net Access Corporation, 800-NET-ME-36, http://www.nac.net   --



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