From: "Vishal Gandhi Kommineni" <vishal@southernonline.net>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] speed problem
Date: Thu, 02 Jan 2003 09:37:53 +0000 [thread overview]
Message-ID: <marc-lartc-104149958621920@msgid-missing> (raw)
In-Reply-To: <marc-lartc-104149697120410@msgid-missing>
Warm wishes for the new year 2003,
thanks for the reply, i found that there are collission when i use a hub in
between,
How do i make sure that both the ethernet cards are running in half or full
duplex mode,
how do i check if weathere an ethernet is in half or full duplex mode
Thanks in advance
Vishal Gandhi
----- Original Message -----
From: "ulrich schwarz" <ulrich.schwarz@rz.uni-ulm.de>
To: "Vishal Gandhi Kommineni" <vishal@southernonline.net>
Cc: "LARTC" <lartc@mailman.ds9a.nl>
Sent: Thursday, January 02, 2003 2:34 PM
Subject: Re: [LARTC] speed problem
> Vishal Gandhi Kommineni wrote:
> > Hi all,
> > I have a pecular problem
> >
> > i have a setup of 3 linux boxes and a windows pc
> >
> > boxes A, B, C and a pc are connected in the follwoing sequence
> >
> >
> > A (eth0)< ----> (eth0) B (eth1)< -----> (eth0) C (eth1) <------> PC
> >
> >
> > 1) using ftp I am able to transfer data from B to A both ways, the
> > speeds are around 1.2e
> > 2) I am also able to transfer similarly to and fro from B to PC via box
C
> >
> > but
> >
> > 3) when i am trying to ftp data from A to PC via B and C to and fro the
> > data transfer speed has drastically come down,
> > Please note that in both B and C ipforward is enabled.
> >
> > Kindly help
> >
> > Thanks in advance,
> >
> > Vishal Gandhi
>
>
> hi vishal,
>
> the first thing i'd like to check is if the ethernet cards are running
> in full- or half-duplex mode. AFAIK running one card in half-duplex mode
> and the other trying to force full-duplex mode can lead to lots of
> collisions, so this could be a reason for slow speed.
>
> you could use a hub or switch instead of the crossover cable and watch
> the collision LED (if there is any *g*).
>
> greetings,
>
> ulric
>
> --
> ulrich schwarz, computing center, university of ulm, germany
>
>
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> LARTC mailing list / LARTC@mailman.ds9a.nl
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>
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next prev parent reply other threads:[~2003-01-02 9:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-02 8:53 [LARTC] speed problem Vishal Gandhi Kommineni
2003-01-02 9:04 ` ulrich schwarz
2003-01-02 9:37 ` Vishal Gandhi Kommineni [this message]
2003-01-02 11:22 ` Lars Gaarden
2003-01-02 16:19 ` Martin A. Brown
2003-01-03 5:43 ` Vishal Gandhi Kommineni
2003-01-03 5:46 ` Vishal Gandhi Kommineni
2003-01-03 5:49 ` Vishal Gandhi Kommineni
2003-01-03 17:58 ` Dan Kramarsky
2003-01-04 5:26 ` Vishal Gandhi Kommineni
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