From owner-freebsd-stable Tue Dec 21 18: 3: 9 1999 Delivered-To: freebsd-stable@freebsd.org Received: from ares.cs.Virginia.EDU (ares.cs.Virginia.EDU [128.143.136.41]) by hub.freebsd.org (Postfix) with ESMTP id 3B6E11554E for ; Tue, 21 Dec 1999 18:02:53 -0800 (PST) (envelope-from vkb3q@cs.virginia.edu) Received: from cobra.cs.Virginia.EDU (cobra.cs.Virginia.EDU [128.143.137.16]) by ares.cs.Virginia.EDU (8.9.2/8.9.2/UVACS-1999030200) with ESMTP id VAA15984 for ; Tue, 21 Dec 1999 21:02:51 -0500 (EST) Received: from localhost (vkb3q@localhost) by cobra.cs.Virginia.EDU (8.9.2/8.9.2) with ESMTP id VAA20871 for ; Tue, 21 Dec 1999 21:02:51 -0500 (EST) X-Authentication-Warning: cobra.cs.Virginia.EDU: vkb3q owned process doing -bs Date: Tue, 21 Dec 1999 21:02:51 -0500 (EST) From: Vinod Balakrishnan To: freebsd-stable@FreeBSD.ORG Subject: de driver problems with ZNYX 21140A cards Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG hi, I am working on a 6 pc test bed (FreeBSD boxes) having the 4 port 100Mbps 21140A Znyx cards. I am running FreeBSD 3.1-Release. I have also tested it on FreeBSD 3.0-Stable. I am facing a few problems with the device driver de. 1. netstat -I gives lots of output errors. Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll de3 1500 10.0.8/24 10.0.8.5 434417 0 290242 289158 0 If I use the device driver provided at the ZNYX website (znyx.com) zxe then I do not see any Oerrs. 2. ifconfig de3 mediaopt full-duplex , returns an error: ifconfig:SIOCSIFMEDIA: Device not configured 3. The throughput of a TCP flow from one FreeBSD box to another (each having a ZNYX card) varies with the packet size. For instance for a packet size of 150bytes I achieve 90Mbps. For packetsize of 500bytes it is only 60-70Mbps. 4. If I run a tcp flow from one FreeBSD box to another via an intermediate FreeBSD box (all having the ZNYX344 card and de device driver) I get a throughput of 40Mbps only for 500 byte packets. All of these above problems are not visible when I use the zxe device driver. thank you for your time, -Vinod *********************************************************************** B. Vinod Kumar Dept. of Computer Science, University of Virginia, Charlottesville Residence: 101, Carrollton Terrace, #2 Charlottesville, Va-22903 804-293-5101 ********************************************************************** To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message