From owner-freebsd-questions@FreeBSD.ORG Tue Jul 22 08:01:58 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 A314337B401; Tue, 22 Jul 2003 08:01:58 -0700 (PDT) Received: from lava.sentex.ca (pyroxene.sentex.ca [199.212.134.18]) by mx1.FreeBSD.org (Postfix) with ESMTP id C86A843F93; Tue, 22 Jul 2003 08:01:57 -0700 (PDT) (envelope-from mike@sentex.net) Received: from simian.sentex.net (simeon.sentex.ca [192.168.43.27]) by lava.sentex.ca (8.12.9/8.12.8) with ESMTP id h6MF1tRa005847; Tue, 22 Jul 2003 11:01:56 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <5.2.0.9.0.20030722105600.05edc6e8@209.112.4.2> X-Sender: mdtpop@209.112.4.2 (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 5.2.0.9 Date: Tue, 22 Jul 2003 11:02:40 -0400 To: questions@freebsd.org From: Mike Tancsa Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Virus-Scanned: By Sentex Communications (lava/20020517) cc: freebsd-net@freebsd.org Subject: Increasing interface queues 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, 22 Jul 2003 15:01:59 -0000 We have a box terminating a lot of MPD tunnels from dialup connections. When the modems at remote sites renegotiate due to poor line quality, there will be a pause in the flow of data. Occasionally, the interface on the terminating side will get a "no buffer space" as data is accumulating to be sent out. Is there a way for me to increase those queue sizes so that the server's queue has more room to hold the data until the other end is ready to receive again ? The only sysctl var I could see % sysctl -a | grep -i queue net.inet.ip.intr_queue_maxlen: 50 net.inet.ip.intr_queue_drops: 0 p1003_1b.sigqueue_max: 0 I dont think is related to this issue. These are all netgraph interfaces BTW. Thanks, ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet since 1994 www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike