<div dir="ltr">That first link is blocked by our Barracuda filter due to spyware?</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Sep 12, 2013 at 12:27 PM, Tim March <span dir="ltr"><<a href="mailto:march.tim@gmail.com" target="_blank">march.tim@gmail.com</a>></span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Slightly OT, but I had a bunch of DSL issues at my home recently and<br>
fired up Cacti on my Synology NAS (I think I mentioned this in a post a<br>
few weeks back...) to graph DSL statistics on a Cisco 867W.<br>
<br>
Relevant links if anyone is interested in doing the same thing;<br>
<br>
<a href="http://www.robdehoog.nl/technology/cacti-on-a-synology-nas-how-to/" target="_blank">http://www.robdehoog.nl/technology/cacti-on-a-synology-nas-how-to/</a><br>
<br>
<a href="http://www.alcatron.net/?p=42" target="_blank">http://www.alcatron.net/?p=42</a><br>
<br>
<a href="http://itknowledgeexchange.techtarget.com/cisco/understanding-cisco-dsl-statistics/" target="_blank">http://itknowledgeexchange.techtarget.com/cisco/understanding-cisco-dsl-statistics/</a><br>
<br>
<br>
<br>
T.<br>
<div class="im"><br>
On 12/09/13 12:17 PM, Paul Brooks wrote:<br>
> A recent Ofcom (UK) report has a very interesting chart of ADSL2+ line speeds:<br>
><br>
> Ofcom Infrastructure Report 2012 Update<br>
> <a href="http://stakeholders.ofcom.org.uk/market-data-research/other/telecoms-research/broadband-speeds/infrastructure-report-2012/" target="_blank">http://stakeholders.ofcom.org.uk/market-data-research/other/telecoms-research/broadband-speeds/infrastructure-report-2012/</a><br>


> <a href="http://stakeholders.ofcom.org.uk/binaries/research/telecoms-research/infrastructure-report/Infrastructure-report2012.pdf" target="_blank">http://stakeholders.ofcom.org.uk/binaries/research/telecoms-research/infrastructure-report/Infrastructure-report2012.pdf</a><br>


> Figure 4 on page 11:<br>
><br>
</div><div class="im">> This chart is effectively the result of the ADSL line-sync/attenuation curve<br>
> combined with the increasing area of circles of increasing radius around the<br>
> exchange - and demonstrates very clearly why so many people get low ADSL2+ line<br>
> speeds.<br>
> (Exercise for the reader - work out how VDSL2 would be any different)<br>
><br>
> Also scatter-plots of sync-speed with line-length, as per Figure 8 from another<br>
> UK report:<br>
><br>
><br>
</div><div class="im">> Now every DSLAM network operator can put together similar charts - but I'm not<br>
> aware of any stats for Australian networks, apart from the heat maps put out by<br>
> iiNet and the <a href="http://adsl2exchanges.com.au" target="_blank">adsl2exchanges.com.au</a> site, which aren't quite what I'm looking for.<br>
><br>
> For all you DSLAM operators - I would be very interested in putting together<br>
> similar charts for the Australian networks, to see how our copper loop network<br>
> varies from the UK network. If anyone is willing to share data or statistics,<br>
> I'm very interested in pulling together similar Australian charts - on a<br>
> non-identified, aggregated, anonymised basis if you wish.<br>
> Please contact me off-list - thanks.<br>
><br>
> Paul.<br>
><br>
><br>
><br>
><br>
><br>
><br>
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