From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: buffer overruns Date: Sat, 24 Apr 2004 00:55:31 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <408A1D73.5030705@candelatech.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@oss.sgi.com Return-path: To: Ramesh Chaurasiya In-Reply-To: Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org Ramesh Chaurasiya wrote: > Hi, > Whenever I try to receive traffic at more than 500 Mbps, many packets > are being dropped as shown in ifconfig. There are many overruns and errors > in Rx packets details of ifconfig. I am using Intel PRO 1000 Gigabit NIC, > linux 2.4.20-8smp and dual processsor Xeon Machine with a 32bit/33 MHz PCI > bus. What does this error means. Am I dropping packets at > NIC/driver/kernel buffers/application socket? What new hardware should I > use to overcome this. I am using latest e1000 drivers compiled with NAPI > support. Please help me out. > Thanks, > Ramesh. Get a 64-bit PCI-X bus, and set the RxDescriptors and TxDescriptors in the e1000 driver to 4096. With that, I can get about 999Mbps rx + tx on two ports. Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com