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Article #15

Re: loss of large packets between nsw.gw.au and act.gw.au

#15
From: Peter Elford
Date: Thu, 21 May 1992 06:17
29 lines
2107 bytes
In article <4978@cluster.cs.su.oz.au>, jont@cs.su.oz (Jonathon Tidswell) writes:
|> It seems that large packets are getting lost between nsw.gw and act.gw

Yes, I know ... small packets (100 bytes) have about 85-90% succes rate.

|> I dont expect large packets to be as fast or as reliable as smaller packets
|> but is a 50-75% loss on packets of 500 bytes reasonable ?

No it is totally unacceptable (and so is 85-90% for small packets).

This is a known problem that was first reported yesterday. The problem
appears to be the high speed modems that terminates the Canberra end of
2Mb link to Sydney, for which a replacement is expected tomorrow some time
after 9:30 ...

|> What is the maximum packet size for the sydney canberra link ?

1500 bytes.

|> Equally what is the optimal packet size ? ( the maximum ? )

Normally 1500 bytes. Right now, much less (unfortunately).

Peter Elford,                           	e-mail: P.Elford@aarnet.edu.au
Network Co-ordinator,	 			phone: +61 6 249 3542
Australian Academic Research Network,		fax:   +61 6 249 1369
c/o, Computer Services Centre,			pager: +61 6 245 3035
Australian National University			post:	PO Box 4     
Canberra, AUSTRALIA					Canberra 2601
Technical Details
Message-ID: <1992May21.061715.12290@newshost.anu.edu.au>
Path: arc1-ca.pugleaf.net!sparky!uunet!sun-barr!west.West.Sun.COM!sunaus!swift!pta!yarra!mel.dit.csiro.au!munnari.oz.au!manuel!jatz.aarnet.edu.au!pte900
References: <4978@cluster.cs.su.oz.au>

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From: pte900@jatz.aarnet.edu.au (Peter Elford)
Newsgroups: su.net,aus.netstatus,aus.aarnet
Subject: Re: loss of large packets between nsw.gw.au and act.gw.au
Message-ID: <1992May21.061715.12290@newshost.anu.edu.au>
Date: 21 May 92 06:17:15 GMT
References: <4978@cluster.cs.su.oz.au>
Sender: news@newshost.anu.edu.au
Reply-To: P.Elford@aarnet.edu.au
Distribution: aus
Organization: AARNet
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