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RE: ADSL problems with 10/100 NICs
- To: "Aviram Jenik" <aviram(at-nospam)jenik.com>, "Shaul Karl" <shaulka(at-nospam)bezeqint.net>
- Subject: RE: ADSL problems with 10/100 NICs
- From: "fredy" <fredarie5(at-nospam)isdn.net.il>
- Date: Thu, 7 Jun 2001 12:02:25 +0200
- Cc: "linux ILUG" <linux-il(at-nospam)linux.org.il>
- Delivered-To: linux-il-linux-il@linux.org.il
- Importance: Normal
- In-Reply-To: <005c01c0ef1d$dc8249b0$fe01a8c0@aviram>
- Reply-To: <fredarie5(at-nospam)isdn.net.il>
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
Unlike a 10/100 hub a switch will not automatically handle differences in
communication speeds.
I never used 3com switches but they all have one thing in common - the
direct cable connection, some even a telnet connection.
All you have to do is enter the interface and configure the switch, I belive
that bye seperating the switch into "semi-subnets" you will solve the
problem.
for example, lets say its a 16 port switch, just make the first 8 10MBit and
the last 8 100MBit, the switch then will use logic to transfer packets
between the two "subnets".
another thing you should do while inside the interface is check the port
status, i belive you should see many collisions and packet timeouts which
were caused by the missconfiguration of the switch and they are the reason
your sessions broke up.
-----Original Message-----
From: linux-il-bounce@cs.huji.ac.il [mailto:linux-il-bounce@cs.huji.ac.il]On
Behalf Of Aviram Jenik
Sent: Thursday, June 07, 2001 8:48 AM
To: Shaul Karl
Cc: linux ILUG
Subject: Re: ADSL problems with 10/100 NICs
> > My guess is that those machines are sending packets in 100mbps whereas
the
> > Linux machine uses a 10mbps card and loses packets, which results in a
> > broken connection.
>
> I was under the impression that a good dual-speed switch should handle
those speed differences by itself, transparently. What is the model of your
switch?
>
Yes, I thought so too. Note that network communication is working, but
occasionally web pages are not displayed and e-mail download gets broken.
The switch is a 3COM OfficeConnect Dual speed switch.
- Aviram
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