Date: Thu, 8 Apr 1999 08:51:48 -0500 From: "Mike Avery" <mavery@mail.otherwhen.com> To: freebsd-isp@FreeBSD.ORG Subject: Re: NFS slowness on 100 LAN Message-ID: <199904081401.JAA03286@hostigos.otherwhen.com> In-Reply-To: <Pine.GSO.3.95.990407144941.16794A-100000@hollywood.cinenet.net> References: <199904072058.PAA02127@hostigos.otherwhen.com>
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On 7 Apr 99, at 14:52, Suresh Rajagopalan wrote:
> > 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.
I REALLY don't trust switches yet.... just for grins, try a hub and see
what happens.
> > 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.
Overall, I trust ASUS.....
What else is on the net, and what sort of performance are the other
nodes seeing?
Mike
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