[plug] gigabit lan

[Jon L Miller]

If you have the knowledge and want to find out why the LAN is slow use
Wireshark and a hub and see what is the majority packets flowing on the
network.
Once you identify this and fix it then your lan will run faster.  If you
find that the packets are ok, then your switch isn't processing fast enough.
It's either a store and forward switch or a pass-thru switch (faster).

Jon
 
-----Original Message-----
From: plug-bounces at plug.org.au [mailto:plug-bounces at plug.org.au] On Behalf
Of Richard Meyer
Sent: Wednesday, 9 January 2008 9:11 AM
To: plug at plug.org.au
Subject: Re: [plug] gigabit lan

On Wed, 2008-01-09 at 06:12 +1000, Daniel Pearson (Flashware Solutions)
wrote:
> ----- Original Message ----- 
> From: "Kev" <kdownes at tpg.com.au>
> To: "PLUG" <plug at plug.org.au>
> Sent: Tuesday, January 08, 2008 7:05 PM
> Subject: [plug] gigabit lan
> 
> 
> > G'day all
> >
> > I've just replaced 2 x 10/100 8 port switches (daisy chained) in our
home 
> > p2p network with 1 x 16 port gigabit switch.  Most (but not all) of our 
> > home machines have gb nics on motherboard, including the 2 right here on

> > my desk.  One has a Marvell 88E8001 Gigabit Ethernet Controller with the

> > skge driver installed and the other has an Nvidia CK8S Ethernet
Controller 
> > with the forcedeth driver installed.  These are the default drivers 
> > installed by Xandros.
> >
> > I use only Samba on the network because there is a mix of Windoze and 
> > Linux machines at home and thus far (the last 3(ish) years) Samba has
run 
> > flawlessly.  Even now Samba seems to be running OK.
> >
> > The problem:  There appears to be no improvement in network speeds - no 
> > change at all.  Copying files between these 2 machines I have in front
of 
> > me happens at about 3.6Mbytes/sec according to gkrellm.  I'm using good 
> > condition bought, moulded cat5E cables, each 2m long.  Only the switch 
> > between them.
> >
> > A complicating factor is that I'm really NOT very technically adept, 
> > particularly with Linux and particularly with networking issues.
> >
> > Perhaps someone out there might be able to ask me the right questions to

> > elicit the information required to help me speed things along a little.
> >
> >
> > Tia
> > Kev
> 
> What I see as the begging question though, is what brand is the switch?
I've 
> noted the same thing for a client using a cheap'ish TP-Link 16 port GB 
> switch..
> 
> Do you have another gigabit switch you could borrow to try, even if its
just 
> to connect the 2 machines in question?
> 
> Cheers,
> Dan. 

What about bypassing the switch altogether and connecting the two
machines with a cross-over cable? That'll get the switch right out of
the equation.

RM
-- 
Richard Meyer <meyerri at westnet.com.au>
Necessity is the plea for every infringement of human freedom.
It is the argument of tyrants; it is the creed of slaves. 
William Pitt, 1783

Linux Counter user #306629


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