[OT] Network Question

[Gerald Combs]

On Fri, 22 Feb 2002, Seth Dimbert wrote:

> Here at my office, I use a Windows PC on a Netware Network.
> 
> I recently moved offices and am experiencing slower than usual internet
> speeds at my new desk. Pages load slowly, or not at all. The problem is, it
> happens periodically.
> 
> We've tested the NIC and patch cable and double-checked all the appropriate
> network settings in Windows. All looks OK.
> 
> Is there any kind of test I could run that would track up/download speeds
> over a period of time? Does anyone know of any hardware tester I could run
> that would check the efficiency of the cable between my office and the hub?
> Can anyone think of anything I've overlooked?

Are you running on a 100 Mbps Ethernet connection?  If so, are your NIC
and switch port _both_ in full-duplex mode?  Fluke and other companies
make hardware lan testers that can test a connection for a number of
problems.  You could also try running a trace with Ethereal - it can show
you the delta times between packets and graph TCP throughput.  Which
version of Windows are you running?  Try running "netstat -es" - on my
Win2K box it shows Ethernet, IP, UDP, and TCP statistics including
discards and retransmits.

> -SD
> 
> 
> 
>