[OLUG] Network Collisions

[brian at cbiowa.com]

	If there is a collision wouldn't that mean the packet has to be resent
by the network cards?

John Williams wrote:
> 
> Actually when you look at your ifconfig it shows that no packets were
> dropped.  As far as collisions go, it is normal for this to happen.  Your
> network card is designed to deal with collisions and back off from sending
> packets for a random period of time before trying again.  Collisions do
> effect network performance when the network gets large enough.  A switch
> would be a better alternative to a hub as far as that goes.
> 
> John
> ----- Original Message -----
> From: <brian at cbiowa.com>
> To: <Olug at bstc.net>
> Sent: Friday, January 28, 2000 12:40 AM
> Subject: [OLUG] Network Collisions
> 
> >         Is there any network gurus on this list that would be kind
> > enough to take a look at my problem?  I have a pretty simple network
> > consisting of:
> > 1) (Server) dual pII 233 with Slackware 4.0 Kernel 2.2.13 and DFE-530TX
> > PCI NIC Card
> > 2) (Client) Toshiba Laptop Pentium 233 w/Win95 and 3COM PCMCIA NIC Card
> > 3) (Client) Toshiba Laptop Pentium 166 w/Win95 and 3COM PCMCIA NIC Card
> >
> >         These are all connected with a 24 port D-Link hub.  My question
> > is how to I fix or stop collisions.  Here is the output from an
> > "ifconfig eth0"
> >
> > myhome:/home/bweber# ifconfig eth0
> > eth0      Link encap:Ethernet  HWaddr 00:00:00:00:00:00
> >           inet addr:192.168.2.1  Bcast:192.168.2.255  Mask:255.255.255.0
> >           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> >           RX packets:161816 errors:0 dropped:0 overruns:0 frame:0
> >           TX packets:360283 errors:0 dropped:0 overruns:0 carrier:0
> >           collisions:48602 txqueuelen:100
> >           Interrupt:19 Base address:0xe480
> >
> >         Is there something that I can do with my network configuration
> > that would stop collisions?  My assumption is that collisions impede on
> > network performance?  Any ideas or previous experiences would be greatly
> > appreciated.
> >
> > Thanks in advance!
> > --
> >              Brian Weber
> >          Computer Consultant
> >              Cap Gemini
> >       brian at mail.cbiowa.com
> >
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-- 
             Brian Weber
         Computer Consultant
             Cap Gemini
      brian at mail.cbiowa.com

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