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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: level3.net in Chicago - high packet loss?!?
On Tue, Sep 06, 2005 at 10:39:12AM -0400, Adam Rothschild wrote: > On 2005-09-06-10:25:28, Network Fortius <[email protected]> wrote: > > And how exactly would you interpret the number returned by net_loss > > (int), in a column called "LOSS", in reference to reachability of a > > "hop" between two end points [...] > > I'd interpret it to mean you're hitting a control plane policer or > somesuch, with no actual bearing on end-to-end performance, judging > from the diagnostic output you've graciously provided us with. > > I find myself giving this lecture several times a week to random > "gamer" customers upset that intermediary routers don't reply to their > pings at full line rate; I'd expect slightly better critical thinking > skills from the posters on this list, but I've been wrong before. :) And yet, his client had a problem, with that link, and did not have a problem with some other link, which, presumably, did *not* show that indication. Correlation does not imply causation, given, but it's certainly a datapoint. Best Practices of wide-area diagnosis, anyone? Cheers, -- jra -- Jay R. Ashworth [email protected] Designer +-Internetworking------+----------+ RFC 2100 Ashworth & Associates | Best Practices Wiki | | '87 e24 St Petersburg FL USA http://bestpractices.wikicities.com +1 727 647 1274 If you can read this... thank a system administrator. Or two. --me
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