From owner-freebsd-isp Wed Apr 7 14:54:23 1999 Delivered-To: freebsd-isp@freebsd.org Received: from tahoe.cinenet.net (ns1.cinenet.net [198.147.76.65]) by hub.freebsd.org (Postfix) with ESMTP id 9AAB814D66 for ; Wed, 7 Apr 1999 14:54:13 -0700 (PDT) (envelope-from sraja@cinenet.net) Received: from hollywood.cinenet.net (hollywood.cinenet.net [198.147.76.75]) by tahoe.cinenet.net (8.8.6/8.8.6) with ESMTP id OAA27889 for ; Wed, 7 Apr 1999 14:52:14 -0700 (PDT) Received: from localhost (sraja@localhost) by hollywood.cinenet.net (SMI-8.6/) with SMTP id OAA16884 for ; Wed, 7 Apr 1999 14:52:13 -0700 X-Authentication-Warning: hollywood.cinenet.net: sraja owned process doing -bs Date: Wed, 7 Apr 1999 14:52:13 -0700 (PDT) From: Suresh Rajagopalan To: freebsd-isp@FreeBSD.ORG Subject: Re: NFS slowness on 100 LAN In-Reply-To: <199904072058.PAA02127@hostigos.otherwhen.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > I'd turn off the FD. Based on information in another list, when > congestion occurs the 3COM switches tend to just drop packets as a > means of flow control. The sender has to time out before a retry is > attempted. Bad design. A number of other switches do the same > thing. All in all, FD may not be quite ready for prime time yet. The slowness is seen on 100MB half-duplex also. > > Also, you didn't mention the box you were using, but there are some > documented problems with Compaq boxes and 3Com PCI cards - the > cards can only access the bus one fourth as often as it should be > able to. All in all, I'm phasing out my 3Com cards. > The client is a generic box with a ASUS-P2B-D motherboard and a PII-450. The X86 server is a dual PPro Asus motherboard running X86. Suresh To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message