Date: Fri, 30 Dec 2005 17:28:31 +0200 From: Mihai Tanasescu <mihai@duras.ro> To: freebsd-questions@freebsd.org Subject: Re: Systat -ip 1 strange problem Message-ID: <43B5521F.7020502@duras.ro> In-Reply-To: <443bkak3td.fsf@be-well.ilk.org> References: <43B3AAD2.4030703@duras.ro> <443bkak3td.fsf@be-well.ilk.org>
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Well I wasn't very exact: I have something like this: ISP links ---> Freebsd Box -- gbit----- Cisco 3750 -- users. If I issue systat -ip 1 (immediately after a reboot on the Freebsd box) I see something like: 90.000 pkt/sec forwarded ( if I look on the C3750 interface statistics I see something similar ). If I wait 1-2-3 hours and issue systat -ip 1 I see 800-900.000 pkt/sec forwarded (but these stats don't correspond to what I'm seeing on the C3750). If I issue systat -ip 3 then I see 90-100.000 pkt/sec which is correct. Lowell Gilbert wrote: >Mihai Tanasescu <mihai@duras.ro> writes: > > > >>Don't know if this is the right list to post this problem, but I hope >>I'm not too far off: >> >> > >If you're not sure, then this is the right list. > > > >>I have a Compaq Proliant ML 350 machine with 3 x fxp and 2 x em >>network cards. >> >>If I issue : >> >>systat -ip 1 I see: >> >> 866056packets forwarded 0 - no checksum >> >>the same for systat -ip 2. >> >>For systat -ip 3 (and higher): >> >> 83537 packets forwarded 0 - no checksum - these >>are the correct figures >> >> >>I really don't have the figures reported for refresh-interval = 1 or >>2 and have just installed Freebsd 5.4 on it. (The same problem >>manifests with Freebsd 6.0 on that box). >> >>A friend of mine has a similar setup (but not a Compaq box) and >>doesn't see strange values for -ip 1 and -ip 2. >> >> >> >>Any clue on what's happening or what's causing this ? >> >> > >I'm not quite sure what you're saying here. Are you saying that if >you use a refresh interval of 1, it tells you you're getting over >800,000 packets forwarded per second, but with a longer refresh >interval, it gives you values of around 35,000 packets per second? >And that you know from some other method that the latter is correct? > > >
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