Date: Wed, 30 May 2007 12:03:40 -0700 From: Jeremy Chadwick <koitsu@FreeBSD.org> To: Vinny Abello <vinny@tellurian.com> Cc: freebsd-stable@freebsd.org Subject: Re: Packet Loss w/bge & BCM5703 on Dell PE2650 Message-ID: <20070530190340.GA28312@eos.sc1.parodius.com> In-Reply-To: <465DC746.2090401@tellurian.com> References: <200705300934.l4U9Y7eJ022617@lurza.secnetix.de> <465DB5B2.8040707@tellurian.com> <20070530174631.GA15795@eos.sc1.parodius.com> <499c70c0705301113n58588719j6fb35154701f3cb1@mail.gmail.com> <465DC050.8020707@tellurian.com> <465DC2BA.6040709@jim-liesl.org> <465DC746.2090401@tellurian.com>
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On Wed, May 30, 2007 at 02:49:42PM -0400, Vinny Abello wrote: > All suggestions welcomed: Your mbuf counts look OK. I don't see anything there which looks like a problem. If you had packet loss caused by mbuf exhaustion, your FreeBSD console log would show something. I've some couple questions: 1) Checked console logs (dmesg -a) to see if there's anything there which might give you hints to the problem? 2) Any IPMI modules installed in that Dell box? 3) vmstat -i output? 4) Is there a switch between the Cisco router and the FreeBSD box? 5) If there is a switch between the router and the FreeBSD box, have you tried the pings from a box (not the Cisco) on the same switch segment as the FreeBSD box? 6) Have you tried pings the other way (FreeBSD box -> box#2, and box#2 -> FreeBSD box) to see if its reproducable that way? 7) Does it only happen with ICMP traffic, or can you reproduce the loss using something like FTP (slow transfer rates/stalls)? 8) Tried downthrottling to 100mbit (ifconfig_bge0="... media 100baseTX") on both sides, to see if it's a gigabit-specific problem? 9) Tried different cabling? I see the network is gigabit. You might try replacing the cables, preferably with CAT6. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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