Date: Tue, 17 Feb 1998 08:29:48 +0000 From: freebsd@isvara.net To: FreeBSD Hackers <hackers@FreeBSD.ORG> Subject: Re: Networking Oddity, 16k/sec over 10B2, long pauses. Message-ID: <34E94A7C.A961DB0A@challenge.isvara.net> References: <Pine.BSF.3.96.980216164700.23019A-100000@roguetrader.com>
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Yo Brandon,
Brandon Gillespie wrote:
> We have a 10B2 network. It was getting a little large, so we installed an
> Asante 10B2 hub. Before the hub installed I could get great transfer
> rates. Now, I get 16k/sec transfer rates (via ftp). When I turn on
> hashing in ftp I see it download a chunk, then wait, then download a
> chunk, then wait. The waits are usually a second long. I am also seeing
> a collision light on the hub. I'm wondering if this pause is FreeBSD
> collecting its marbles after a collision; and what could possibly be
> causing the collision in the first place. *Nothing* was changed on the
> network (or nodes on the network) other than installing the hub and
> splitting into segments. Also, this problem only appears with FreeBSD
> boxes--ftping from a powermac over the hub to a Digial Unix box gets
> decent transfer rates.
I just thought it could be that FreeBSD sets the NIC in full-duplex mode,
which would
cause it to exhibit these problems. Only 10b2 doesn't support full-duplex
anyway!
Silly me!
Dan
_____________________________________
Daniel J Blueman
BSc Computation, UMIST, Manchester
Email: blue@challenge.isvara.net
Web: http://www.challenge.isvara.net/
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