From owner-freebsd-net@FreeBSD.ORG Thu Aug 11 02:14:44 2005 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8DB0C16A420 for ; Thu, 11 Aug 2005 02:14:44 +0000 (GMT) (envelope-from david.mao@thomson.net) Received: from dmzraw5.extranet.tce.com (dmzraw5.extranet.tce.com [157.254.234.142]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1CFBB43D55 for ; Thu, 11 Aug 2005 02:14:41 +0000 (GMT) (envelope-from david.mao@thomson.net) Received: from indyvss2.am.thmulti.com (unknown [157.254.92.61]) by dmzraw5.extranet.tce.com (Postfix) with ESMTP id 11E6F919 for ; Thu, 11 Aug 2005 02:14:41 +0000 (GMT) Received: from localhost (localhost [127.0.0.1]) by indyvss2.am.thmulti.com (Postfix) with ESMTP id F27A33442 for ; Thu, 11 Aug 2005 02:14:40 +0000 (GMT) Received: from indyvss2.am.thmulti.com ([127.0.0.1]) by localhost (indyvss2 [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 13468-01-23 for ; Thu, 11 Aug 2005 02:14:37 +0000 (GMT) Received: from smtprelay2.indy.tce.com (smtprelay2.indy.tce.com [157.254.96.95]) by indyvss2.am.thmulti.com (Postfix) with ESMTP id 0D0E23469 for ; Thu, 11 Aug 2005 02:14:37 +0000 (GMT) Received: from boulsmailbh02.eu.thmulti.com (localhost [127.0.0.1]) by smtprelay2.indy.tce.com (8.12.9/8.12.8) with ESMTP id j7B2EChD001100 for ; Thu, 11 Aug 2005 02:14:36 GMT Received: from tahkexch2k.ap.thmulti.com ([141.11.13.12]) by boulsmailbh02.eu.thmulti.com with Microsoft SMTPSVC(6.0.3790.1830); Thu, 11 Aug 2005 04:14:34 +0200 Received: from tahksmail01.ap.thmulti.com ([141.11.13.38]) by tahkexch2k.ap.thmulti.com with Microsoft SMTPSVC(5.0.2195.6713); Thu, 11 Aug 2005 10:13:41 +0800 Received: from bjngsmail01.ap.thmulti.com ([10.11.70.35]) by tahksmail01.ap.thmulti.com with Microsoft SMTPSVC(5.0.2195.6713); Thu, 11 Aug 2005 10:13:41 +0800 X-MimeOLE: Produced By Microsoft Exchange V6.0.6603.0 content-class: urn:content-classes:message MIME-Version: 1.0 Date: Thu, 11 Aug 2005 10:13:38 +0800 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Why Ierrs is so high? Thread-Index: AcWeGkZPoF6NBTzDTQuM4e7uxLUcRw== From: "Mao Shou Yan" To: X-OriginalArrivalTime: 11 Aug 2005 02:13:41.0396 (UTC) FILETIME=[4AF6E540:01C59E1A] X-Virus-Scanned: amavisd-new at thomson.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Why Ierrs is so high? 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: Thu, 11 Aug 2005 02:14:44 -0000 Hi, all, I have a machine with 3 Intel pro1000 cards. em0 is in promisc mode, whose MAC controller is 82543 using fiber line connected. em1, em2 is not connected with cable. Driver configuration is the default, RXD is 256, TXD is 256. =20 Result of "netstat -i": =20 Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll=20 em0 1500 00:03:47:de:72:36 1701943600 369823630 1 0 0=20 em1 1500 00:10:dc:56:8b:b5 5561 0 4608 0 0=20 em2 1500 00:03:47:42:6d:17 0 0 0 0 0 =20 Pps of em0 is about 20k/pps, and bandwidth is no more than 150Mbps. When I use "sysctl hw.em0.stats=3D1", I found the number of "missed packets" is very high, which is about equal Ierrs. And I also found the number of"receive with no buffers"is raising with about 10 per second. =20 The machine is no extra load, only a raw system with em0 in promisc mode! =20 I'm looking forward your help!