From owner-freebsd-net@FreeBSD.ORG Mon Mar 26 18:42:08 2007 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BC22B16A406 for ; Mon, 26 Mar 2007 18:42:08 +0000 (UTC) (envelope-from netslists@gmail.com) Received: from an-out-0708.google.com (an-out-0708.google.com [209.85.132.245]) by mx1.freebsd.org (Postfix) with ESMTP id 5CBA813C4B8 for ; Mon, 26 Mar 2007 18:42:08 +0000 (UTC) (envelope-from netslists@gmail.com) Received: by an-out-0708.google.com with SMTP id c24so2121717ana for ; Mon, 26 Mar 2007 11:42:07 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=hcjTSA5bvXYesQducCkPy75GAKfxMi9zByVLF2zF8veXNp/UhLV1sK3dGdi39ok6bLOVCiyD/cOmrMPXIqw0yAum7waNjWim/74Ed4NxjmpLiiT92DstKjJI62xRGllRWMGiYf2dVnjVXcRtU+jKSbqR+hKe+cowg7Wcin0eUFA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; b=bZD2/08/8OVm0Fki/TTGPCnRdKyCW4Yz+jZes/IAXzEBewVDnxkRHh92OyulgOXbf5E1Urwk9wEYSwWElABzzOdsC577IHJZSrrIFGB19oPSjZjiwU+SOUuJLOuDPOi+nNkeK00OOJqOsxZNNWO61ddiTn0Q7ZMgqadIHw6E7Tc= Received: by 10.100.37.4 with SMTP id k4mr5326348ank.1174934527249; Mon, 26 Mar 2007 11:42:07 -0700 (PDT) Received: from ?192.168.11.5? ( [65.33.136.97]) by mx.google.com with ESMTP id d19sm10549602and.2007.03.26.11.42.05; Mon, 26 Mar 2007 11:42:06 -0700 (PDT) Message-ID: <46081409.2080300@gmail.com> Date: Mon, 26 Mar 2007 14:42:17 -0400 From: Sten Daniel Soersdal User-Agent: Thunderbird 1.5.0.10 (Windows/20070221) MIME-Version: 1.0 To: Artem Naluzhny References: <65dfa4fc0703261000r4af6f548p2ac287611b8524f6@mail.gmail.com> In-Reply-To: <65dfa4fc0703261000r4af6f548p2ac287611b8524f6@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org Subject: Re: Reason of "dropped due to full socket buffers" UDP 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: Mon, 26 Mar 2007 18:42:08 -0000 Artem Naluzhny wrote: > hi > > I have 6.1-RELEASE with default sysctl vars. Continuous 'netstat -sp > udp' with 100 ms. interval shows dropped UDP due to full socket > buffers sometimes. The script also monitors 'netstat -anp udp' and > there are no connections with non-zero Recv-Q value by the end of the > interval with drops. > > The server is used as SIP server (ser) with RTP proxy (rtpproxy). Avg > pps (Broadcom BCM5721 Gigabit Ethernet, bge): 630 in, 460 out. > > Any ideas how to find out a reason? (no kernel changes allowed, the > server is in production) > Perhaps it would be helpful to do non-promiscous packet capture on the ethernet interface over a longer period of time. Perhaps you find something unexpected? That might the least intrusive and most effective without giving you down time. It wouldn't surprise me if broadcom drivers have been improved in -STABLE. -- Sten Daniel Soersdal