From owner-freebsd-net@FreeBSD.ORG Mon May 16 20:27:58 2005 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C0B9316A4CE for ; Mon, 16 May 2005 20:27:58 +0000 (GMT) Received: from relay.bestcom.ru (relay.bestcom.ru [217.72.144.5]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8C6F843DBA for ; Mon, 16 May 2005 20:27:57 +0000 (GMT) (envelope-from glebius@FreeBSD.org) Received: from cell.sick.ru (root@cell.sick.ru [217.72.144.68]) by relay.bestcom.ru (8.13.1/8.12.9) with ESMTP id j4GKRsi3079595 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Tue, 17 May 2005 00:27:54 +0400 (MSD) (envelope-from glebius@FreeBSD.org) Received: from cell.sick.ru (glebius@localhost [127.0.0.1]) by cell.sick.ru (8.13.1/8.12.8) with ESMTP id j4GKRrpo087050 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 17 May 2005 00:27:54 +0400 (MSD) (envelope-from glebius@FreeBSD.org) Received: (from glebius@localhost) by cell.sick.ru (8.13.1/8.13.1/Submit) id j4GKRr1b087049; Tue, 17 May 2005 00:27:53 +0400 (MSD) (envelope-from glebius@FreeBSD.org) X-Authentication-Warning: cell.sick.ru: glebius set sender to glebius@FreeBSD.org using -f Date: Tue, 17 May 2005 00:27:53 +0400 From: Gleb Smirnoff To: Donatas Message-ID: <20050516202753.GB86723@cell.sick.ru> Mail-Followup-To: Gleb Smirnoff , Donatas , freebsd-net@FreeBSD.org References: <008701c559da$a9e1b050$9f90a8c0@DONATAS> <20050516130820.GA83360@cell.sick.ru> <03c301c55a55$0145d180$9f90a8c0@DONATAS> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: <03c301c55a55$0145d180$9f90a8c0@DONATAS> User-Agent: Mutt/1.5.6i X-Virus-Scanned: ClamAV version devel-20050125, clamav-milter version 0.80ff on relay.bestcom.ru X-Virus-Status: Clean cc: freebsd-net@FreeBSD.org Subject: Re: flood with ng_bridge X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 May 2005 20:27:58 -0000 On Mon, May 16, 2005 at 11:22:38PM +0300, Donatas wrote: D> > D> 3. Monitorring traffic with mrtg on ngethxxx and hatm0 interfaces we can se interesting output amplitude fluctations: D> > D> ftp://temp:temp@217.9.241.242/hatm0.png D> > D> seems that origin of those fluctations is ng_bridge. D> D> > What is the timescale? How long one peak/pit lasts in time? I doubt that this D> > is related to ng_bridge. D> crontab: D> ### Regular MRTG monitoring D> 0,10,20,30,40,50 * * * * root /usr/local/etc/mrtg/exec_mrtg.sh > /dev/null 2>&1 No-no. The question was: what is the scale of time axis? How long does one peak last? D> we have ng_bridge, (bridged: fxp0, ngeth(1-xxx), hatm0) D> D> ngethxxx are linked with hatm0 in the following way: D> hatm0<->atmllc<->ng_vlan<->ng_eiface<-> Can you please show the script you use to build graph? D> we've tried tens of variuos configurations on determining the couse of those fluctuations. They seems to be not only in ng_bridge but in kernel.bridge as well. We've tried to change all 3 parameters in ng_bridge and still - those parameters doesn't seems to affect fluctuations. Have you doublechecked that fluctuation aren't caused just by the source of traffic? For example some host runs periodic job... -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE