From owner-freebsd-questions@FreeBSD.ORG Tue Jun 17 05:15:41 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2501137B401 for ; Tue, 17 Jun 2003 05:15:41 -0700 (PDT) Received: from malkav.snowmoon.com (malkav.snowmoon.com [209.23.60.62]) by mx1.FreeBSD.org (Postfix) with SMTP id 44B3743F85 for ; Tue, 17 Jun 2003 05:15:40 -0700 (PDT) (envelope-from jaime@snowmoon.com) Received: (qmail 94756 invoked from network); 17 Jun 2003 12:15:35 -0000 Received: from localhost.snowmoon.com (HELO localhost) (127.0.0.1) by localhost.snowmoon.com with SMTP; 17 Jun 2003 12:15:35 -0000 Date: Tue, 17 Jun 2003 08:15:31 -0400 (EDT) From: Jaime To: freebsd-questions@freebsd.org Message-ID: <20030617075240.L94567@malkav.snowmoon.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: ping: sendto: No buffer space available X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Jun 2003 12:15:41 -0000 I've been noticing for a few days that my network's performance is less than good. When I checked on it, I found that the firewall attempting to ping the ISP's DNS resolver would have "hiccups." The ISP claims that there is nothing wrong on the T-1 line and that there is a problem on the ethernet interface of the router (which leads to the firewall). The pings will run just fine for several minutes at a time and then begin to output this: ping: sendto: No buffer space available This will go on for anywhere from 15 seconds to 5 minutes, during which we're effectively not connected to the Internet at all. An occasional ping will work, but only about 1 in 20 and it seems random. Then, just as suddenly, the connection will work again. I'm not completely sure what this means, but I found the following command in the mailing list archives: cerberus# sysctl -a | grep intr_qu net.inet.ip.intr_queue_maxlen: 50 net.inet.ip.intr_queue_drops: 6987 Does anyone have any suggestions or tips? Thanks in advance, Jaime -- "To affect the quality of the day, that is the highest of arts." - Henry David Thoreau, _Where_I_Live_