[AusNOG] ADSL2+ line sync data

[Paul Brooks]

A recent Ofcom (UK) report has a very interesting chart of ADSL2+ line speeds:

Ofcom Infrastructure Report 2012 Update
http://stakeholders.ofcom.org.uk/market-data-research/other/telecoms-research/broadband-speeds/infrastructure-report-2012/
http://stakeholders.ofcom.org.uk/binaries/research/telecoms-research/infrastructure-report/Infrastructure-report2012.pdf
Figure 4 on page 11:

This chart is effectively the result of the ADSL line-sync/attenuation curve combined
with the increasing area of circles of increasing radius around the exchange - and
demonstrates very clearly why so many people get low ADSL2+ line speeds.
(Exercise for the reader - work out how VDSL2 would be any different)

Also scatter-plots of sync-speed with line-length, as per Figure 8 from another UK report:


Now every DSLAM network operator can put together similar charts - but I'm not aware
of any stats for Australian networks, apart from the heat maps put out by iiNet and
the adsl2exchanges.com.au site, which aren't quite what I'm looking for.

For all you DSLAM operators - I would be very interested in putting together similar
charts for the Australian networks, to see how our copper loop network varies from the
UK network. If anyone is willing to share data or statistics, I'm very interested in
pulling together similar Australian charts - on a non-identified, aggregated,
anonymised basis if you wish.
Please contact me off-list - thanks.

Paul.

 


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