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Article #344

Re: X.25 line utilization???

#344
From: Art Berggreen
Date: Fri, 28 Aug 1992 22:21
42 lines
1869 bytes
In article <721.714404877@scrum> exubho@exu.ericsson.se writes:
>
>Hi,
>
>I have some statistics I have been gathering from one of my packet
>switch nodes within my company's private X.25 network.  I have been
>monitoring the incoming and outgoing bit/sec data rates between
>Richardson Texas and Stockholm Sweden.
>
>We have a full duplex communications link capable of 112
>kilobits/sec of data throughput.  We have recently gotten into a
>quarrel over what the utilization of the link is.  
>
>Here is the scenario.  My statistics tell me that I have the
>following:
>
>40,000 bits/sec input data rate
>60,000 bits/sec output data rate
>
>I think that the utilization of our line during this time (expressed
>as a percentage) is ((40,000 + 60,000)/112000) * 100%
>
>while some others here think that the utilization of our line
>(expressed as a percentage) is gotten by taking the higher of the
>two data rate figures and dividing that by the maximum data rate, or
>(60,000/112000)*100%.
>
>Does anyone have any input on which is the right way to express the
>utilization of our link?  Any input would be appreciated.
>
>Blake Holman
>Ericsson Network Systems, Inc.
>Richardson, Texas
>(214) 997-6784

Since you really have 112Kb/s of capacity IN EACH DIRECTION, I'd suggest that
you calculate the line utilization separately for each direction.

  Input: (40,000/112,000)*100%
  Output: (60,000/112,000)*100%

Art
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Message-ID: <1992Aug28.222113.10073@acc.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!network.ucsd.edu!ucsbcsl!spectrum.CMC.COM!fennel.acc.com!art
References: <721.714404877@scrum>

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From: art@acc.com (Art Berggreen)
Newsgroups: comp.dcom.sys.cisco
Subject: Re: X.25 line utilization???
Message-ID: <1992Aug28.222113.10073@acc.com>
Date: 28 Aug 92 22:21:13 GMT
References: <721.714404877@scrum>
Organization: ACC, Advanced Computer Communications
Lines: 42