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On Fri, Sep 12, 2008 at 12:01 PM, Tom Rockwell <[log in to unmask]> wrote: > Hi, > > I have a question about network performance from my home to MSU. I have ATT > DSL at home and notice that performance seems to be poor to campus during > the evenings. Is it possible that the campus link to Merit is the problem? > Generally ping times are 25-35ms from home to campus, but in the evenings > when I notice the perfomance drop ping times vary from 25 to 200+ ms. You can try using mtr[1]; which will tell you if there is packet loss along your route. mtr likes to do some pretty aggressive things; I am unsure if it will trigger any IDS's between you and MSU. "Note that each running instance of mtr generates a significant amount of network traffic. Using mtr to measure the quality of your network may result in decreased network performance." A problem I've seen in the past is someone leaving mtr running for long periods of time; network devices doing session tracking often fill up their session tables from all the mtr traffic and then the device gets all sad; so my recommendation is to not run it for more than 30 seconds. [1] http://linux.die.net/man/8/mtr > > Sorry to spam the list, but if figure calling AT&T will get me nowhere. > > Thanks, > Tom >