From owner-freebsd-questions@FreeBSD.ORG Wed Nov 14 13:24:00 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5CC2616A41A for ; Wed, 14 Nov 2007 13:24:00 +0000 (UTC) (envelope-from gonnabefun@gmail.com) Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.189]) by mx1.freebsd.org (Postfix) with ESMTP id DC51613C46B for ; Wed, 14 Nov 2007 13:23:59 +0000 (UTC) (envelope-from gonnabefun@gmail.com) Received: by nf-out-0910.google.com with SMTP id b2so147593nfb for ; Wed, 14 Nov 2007 05:23:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:date:from:reply-to:x-priority:message-id:to:subject:in-reply-to:references:mime-version:content-type:content-transfer-encoding; bh=EMo3AX+4A8YB1Uv9pyvQAv2gZ3I8XdUNYBghOlmvI28=; b=Jhd8pZD1mZb8WDCEOFnNzeSsWmYUdmsCqaRYLETn8FMrycBAvO+I8qDMLsRHmhLuTYV+o12LRwH6iVGmvMscd2tiIqK6rezv0akMdpRU9KxjRAdkvMeLMizUeR4PKRza0oMy1NO1MSE9atI1WtUxmPpKgB5ceJ5ivGXvypXko1g= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:date:from:reply-to:x-priority:message-id:to:subject:in-reply-to:references:mime-version:content-type:content-transfer-encoding; b=pjbVM0pIcGvxhLe8/Gp+uQExgCyY+NTh93JfWWmfV1l55wXe4JfO5VqyneuxkoP8zEIMEVpQTaNJd1B0AG1YVe/Q1+kDlKorP6/t0d7oFMjR7L7wkg71lByF1bw73XpGPVAEbmdPKubvaNiqQIg8CsRAxrJP0xaKgcbx56OZICE= Received: by 10.78.200.20 with SMTP id x20mr7986932huf.1195046637994; Wed, 14 Nov 2007 05:23:57 -0800 (PST) Received: from maes.venta.dp.ua ( [62.64.85.163]) by mx.google.com with ESMTPS id 6sm153404nfv.2007.11.14.05.23.54 (version=SSLv3 cipher=OTHER); Wed, 14 Nov 2007 05:23:56 -0800 (PST) Date: Wed, 14 Nov 2007 15:23:49 +0200 From: Eugene X-Priority: 3 (Normal) Message-ID: <366800589.20071114152349@gmail.com> To: freebsd-questions@freebsd.org In-Reply-To: <20071114112541.GD570@saraswathy.susmita.org> References: <1788688982.20071114095051@gmail.com> <20071114112541.GD570@saraswathy.susmita.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: Re: master->backup CARP issue X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Eugene List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Nov 2007 13:24:00 -0000 Hello Girish, Wednesday, November 14, 2007, 1:25:41 PM, Girish Venkatachalam wrote: GV> On 09:50:51 Nov 14, Eugene wrote: >> Hello freebsd, >> >> >> We have two FreeBSD boxes, each one has 4 CARP interfaces in >> preempt >> mode, without arp balancing. >> >> Backup without any reason preempts Master and after a while >> (an hour >> or two) it becomes Backup again. >> When Backup becomes Master on Master box >> net.inet.carp.suppress_preempt: 1, but all interfaces are up and >> seemed to work properly. >> >> >> Is there any ways to debug this issue? >> >> >> Thanks in advance! GV> I could be talking nonsense but still... GV> Have you tried adjusting the "advskew" and "advbase" parameters? GV> Another thing. Are the NICs reliable? GV> Have you tried with a different NIC? GV> Looks like you don't have a faulty NIC here. So it could be the GV> other GV> possibility. No, actually i haven't tried to play with "advskew" and "advbase" parameters, and I'll give it a try, thanks. I'll report results if it helps. Yes, NIC's seemed to be reliable. If I should try a different NIC then which one should I switch, all 4? -- Best regards, Eugene mailto:gonnabefun@gmail.com