From owner-freebsd-stable@FreeBSD.ORG Fri May 13 18:10:12 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 24C1C106566B for ; Fri, 13 May 2011 18:10:12 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta13.emeryville.ca.mail.comcast.net (qmta13.emeryville.ca.mail.comcast.net [76.96.27.243]) by mx1.freebsd.org (Postfix) with ESMTP id 0DD008FC0A for ; Fri, 13 May 2011 18:10:11 +0000 (UTC) Received: from omta24.emeryville.ca.mail.comcast.net ([76.96.30.92]) by qmta13.emeryville.ca.mail.comcast.net with comcast id j5qn1g0011zF43QAD6ABpi; Fri, 13 May 2011 18:10:11 +0000 Received: from koitsu.dyndns.org ([67.180.84.87]) by omta24.emeryville.ca.mail.comcast.net with comcast id j6A61g00J1t3BNj8k6A7FL; Fri, 13 May 2011 18:10:09 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id D8746102C36; Fri, 13 May 2011 11:10:05 -0700 (PDT) Date: Fri, 13 May 2011 11:10:05 -0700 From: Jeremy Chadwick To: Bartosz Woronicz Message-ID: <20110513181005.GA36587@icarus.home.lan> References: <4DCD2881.4020402@korbank.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4DCD2881.4020402@korbank.pl> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-stable@freebsd.org Subject: Re: Unstable ARP responses times X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 May 2011 18:10:12 -0000 On Fri, May 13, 2011 at 02:48:01PM +0200, Bartosz Woronicz wrote: > Since I moved from 7.3-stable to 8.2-stable I go strange long > responses of arp, with arping. > I.e. > root@Korbotron82|pts/3|13:35:35|/home/mastier # arping -i vlan92 > 79.110.194.140 > ARPING 79.110.194.140 > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=0 time=1.579 msec > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=1 time=653.326 msec > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=2 time=7.153 usec > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=3 time=6.199 usec > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=4 time=6.199 usec > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=5 time=5.960 usec > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=6 time=7.153 usec > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=7 time=5.960 usec > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=8 time=6.199 usec > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=9 time=280.132 msec > 60 bytes from 00:15:17:a2:ea:38 (79.110.194.140): index=10 > time=120.429 msec > ^C > --- 79.110.194.140 statistics --- > 18 packets transmitted, 11 packets received, 39% unanswered (0 extra) > root@Korbotron82|pts/3|13:36:06|/home/mastier # ping 79.110.194.140 > PING 79.110.194.140 (79.110.194.140): 56 data bytes > 64 bytes from 79.110.194.140: icmp_seq=0 ttl=64 time=0.348 ms > 64 bytes from 79.110.194.140: icmp_seq=1 ttl=64 time=0.204 ms > 64 bytes from 79.110.194.140: icmp_seq=2 ttl=64 time=0.171 ms > 64 bytes from 79.110.194.140: icmp_seq=3 ttl=64 time=0.223 ms > 64 bytes from 79.110.194.140: icmp_seq=4 ttl=64 time=0.283 ms > 64 bytes from 79.110.194.140: icmp_seq=5 ttl=64 time=0.322 ms > 64 bytes from 79.110.194.140: icmp_seq=6 ttl=64 time=0.250 ms > ^C > --- 79.110.194.140 ping statistics --- > 7 packets transmitted, 7 packets received, 0.0% packet loss > round-trip min/avg/max/stddev = 0.171/0.257/0.348/0.059 ms > > Any Idea what does mean ? Can you try turning off flowtable to see if that makes any difference? This is a sysctl and can be adjusted in real-time. net.inet.flowtable.enable=0 Thanks. -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP 4BD6C0CB |