From owner-freebsd-net@FreeBSD.ORG Tue Jan 29 17:18:19 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A76AA16A41B for ; Tue, 29 Jan 2008 17:18:19 +0000 (UTC) (envelope-from biancalana@gmail.com) Received: from py-out-1112.google.com (py-out-1112.google.com [64.233.166.178]) by mx1.freebsd.org (Postfix) with ESMTP id 6332613C50B for ; Tue, 29 Jan 2008 17:18:19 +0000 (UTC) (envelope-from biancalana@gmail.com) Received: by py-out-1112.google.com with SMTP id u52so3107685pyb.10 for ; Tue, 29 Jan 2008 09:18:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=FQ9FcNKFWtu/JNDIsI3BGCPNaSsCGbOFyUmWZ9QDX2g=; b=Nlc+YSRY9gOaefOQ8CPCaG1mZ/LdBA+Ce51YFB1kpoeXV/n7VigvyxewtPnBKw2+BOKF4NHpy29OEnSdYH9Vp4HSLj2Y6xdsYNLetQk254r8lvmcFanhVm1b4kKDDyiLf5L7eYxlpgEcF00xHl+sX3wgPMM+MWb5ZTPTOydJpF8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=ABNzRcMhd4qJIR1HyQ6QwlwPmxiCwbuzhU+y5KuqPOoPtXUQr157YvunQupHNlI9bopyX6xJnvkV4BGt203jZiDF2D4eomR6MU104LnhLr/pf9B4oPI9B/WHN/S2M3d3QpBWybxbLoAqBPJgRIiTXNoyGvX+5iFHFqh/A2IQM0w= Received: by 10.65.44.5 with SMTP id w5mr14796043qbj.45.1201627097503; Tue, 29 Jan 2008 09:18:17 -0800 (PST) Received: by 10.64.184.9 with HTTP; Tue, 29 Jan 2008 09:18:17 -0800 (PST) Message-ID: <8e10486b0801290918l1a81e078sf4c539078e9138c7@mail.gmail.com> Date: Tue, 29 Jan 2008 15:18:17 -0200 From: "Alexandre Biancalana" To: "Tom Judge" In-Reply-To: <479F5CFD.5040904@tomjudge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <8e10486b0801290439y77568aeby6c6dbfbb5132f61d@mail.gmail.com> <479F4C3C.5070801@tomjudge.com> <8e10486b0801290842l5d65bb3fk8a02d731c3ad1b91@mail.gmail.com> <479F5CFD.5040904@tomjudge.com> Cc: freebsd-net@freebsd.org Subject: Re: VLAN problems X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Jan 2008 17:18:19 -0000 On 1/29/08, Tom Judge wrote: > Alexandre Biancalana wrote: > > Hi Tom ! Thanks for your help! > > > > I had to step back the chance an put the "old" gateway back, the > > performance was unacceptable :-( > > Where these 2 systems connected to the same switch port and cabling? > Could you post the interface error counters from the switch port? All the external links are connected to a 2950. The new gateway have only one gigabit ethernet interface connected to our 4506 core switch, that is parent of all vlans, in this case all the internal networks and external links are vlans. The parent interface of the vlans in the old gateway is connected to the same 2950. #sh interfaces fastEthernet 0/11 FastEthernet0/11 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 000b.be44.3ccb (bia 000b.be44.3ccb) MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 10/255, rxload 5/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, media type is 100BaseTX input flow-control is unsupported output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 2032000 bits/sec, 865 packets/sec 5 minute output rate 4296000 bits/sec, 911 packets/sec 608489542 packets input, 3377246124 bytes, 0 no buffer Received 5492 broadcasts (0 multicast) 0 runts, 0 giants, 0 throttles 3 input errors, 3 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 595743491 packets output, 2124861910 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out > > This error is because 1473 bytes as a pay load makes your icmp packet > 1501 bytes long and you have set the do not fragment bit in the IP > header so with an interface mtu of 1500 bytes this will not work. Right, I'm just guessing.... because I don't understand why I start to lost packets when I enable all networks as vlans....