Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161276AbXECVMN (ORCPT ); Thu, 3 May 2007 17:12:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1031350AbXECVMM (ORCPT ); Thu, 3 May 2007 17:12:12 -0400 Received: from ug-out-1314.google.com ([66.249.92.168]:51485 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031349AbXECVML convert rfc822-to-8bit (ORCPT ); Thu, 3 May 2007 17:12:11 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=bm0VoteNxnq9xvOYA3SQnxBO/ZbhhAYV9VT5nhLdTS6iYnmlhC65OuJX0m9UM5YwhV7vOSwOnxsLhmpE+A4QKbRiTElF5CID6P9wwnIWKNiIDLpB5dso23eRN/LR1ulPK932yRbOmYgGLrudKRFAB9KtGs7rYAIUwDVjTGP92Uw= Message-ID: Date: Thu, 3 May 2007 23:12:09 +0200 From: "=?ISO-8859-1?Q?=D8yvind_V=E5gen_J=E6gtnes?=" To: "Jan Engelhardt" Subject: Re: Routing 600+ vlan's via linux problems (looks like arp problems) Cc: "Linux Kernel Mailing List" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8BIT Content-Disposition: inline References: <20070503205341.GB943@1wt.eu> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1371 Lines: 41 On 5/3/07, Jan Engelhardt wrote: > > On May 3 2007 22:53, Willy Tarreau wrote: > >> For the rest all we see in the arp cache is (incomplete) > > > >I suspect that your arp cache is full (128 entries by default). > >Check /proc/sys/net/ipv4/neigh/gc_thresh1 (128 for me). You can > >set it as high as gc_thresh2 (512 for me), and I don't know what > >happens above. > > Above, you will perhaps need the not-so-elegant userspace arpd :-/ Yes, i was suspecting that the arp cache got full, but i will try increasing it :) Would there be any huge bugs if i change these lines in arp.c: .gc_thresh1 = 128, .gc_thresh2 = 512, to .gc_thresh1 = 700, .gc_thresh2 = 700, under the definition for struct arp_tbl? This setup will only run for about 1-2 hours while we fix the hardware router (it is running now, but only on a backup flash card solution. the harddrive in it died ;) I have been looking at arpd, but i quickly discarded it as an option since its marked both experimental and obsolete ;) regards ?yvind V?gen J?gtnes +47 96 22 03 08 lorrides@gmail.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/