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  • Subject: Re: IP Bottleneck?
  • From: John Hall <jhall@xxxxxxxxxxx>
  • Date: Wed, 25 Apr 2001 12:33:21 -0400



"Bruce Hobbs, Netburg Internet Services" wrote:
> 
> Tim,
> 
> 10 Mbps Ethernet has a maximum practical throughput of 6 Mbps which is less 
>than one workstation controller can do. If you are running more than 30 
>sessions on a 10 Mbps Ethernet connection, that's your problem.
> 
> Bruce

I have to disagree with you about the number of sessions that will clog
an eithernet line.  Think about it - how many bytes to fill an display
station buffer?  Say 5000 just for arguments sake.

6mps / (30 Sessions x 5000 bytes) = 40 transactions per second per
workstation !!!

Also he mentions that it takes 15-20 minutes for a program dump which
does not require netowrk traffic.

John Hall
Home Sales Co.
> 
> On Mon, Apr 23, 2001, 6:16:50 PM GMT Hatzenbeler, Tim wrote:
> 
> >I was just wondering about a possible bottleneck...
> >
> >All of our users screens, and printers are connected to our as/400 via an IP
> >connection.  I was wondering how to tell is the tcp server is being
> >overworked, and not being able to process print jobs as quickly as
> >possible..  Or maybe the ip server may be causing system slowness..
> >
> >We have a fairly large system, but the response time seems to be really
> >dragging... 2-3 minutes to do a telnet connection... or 15-20 minutes to do
> >a program dump when a job fails...
> >
> >Our interactive seems fine...  but I'm just a little stumped....
> >
> >Also, I was wondering if there is a way to see how much our systems
> >resources are going to re-indexing files?  Maybe purging some file might
> >help...  Is there a way to tell?
> >
> >I guess we can through more memory at it...
> >
> >thanks,
> >tim
> >
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