[AusNOG] ITWire - A spanner in the NBN works? Alcatel-Lucent gets 100Mbps over 1km of copper

Andrew Oskam andrew at staff.onthenet.com.au
Thu Apr 22 11:58:18 EST 2010


I still consider fibre a far better alternative in terms of upgrades for 
our future development rather than the age-old degrading copper 
infrastructure.

-- 


Andrew Oskam

E  andrew at th3interw3bs.net


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On 22/04/10 11:48 AM, Skeeve Stevens wrote:
>
> Just in - from: http://www.itwire.com/it-industry-news/strategy/38489
>
>
>     A spanner in the NBN works? Alcatel-Lucent gets 100Mbps over 1km
>     of copper
>
> By Stuart Corner
> Thursday, 22 April 2010 11:37
>
> In a development that could have profound impacts for Australia's NBN, 
> and the ongoing negotiations between Telstra and the Government, 
> Alcatel-Lucent's Bell Labs has achieved a DSL downstream bandwidth of 
> 300Mbps over 400metres (100Mbps at 1km) using two copper pairs.
>
> Alcatel-Lucent's press release quoted Ovum analyst, Kamalini Ganguly, 
> saying: "Alcatel-Lucent Bell Labs' DSL Phantom Mode lab test adds a 
> whole new dimension to the ongoing '100Mbps for all' debate. The fact 
> that existing copper loops can facilitate 300Mbps at 400metres 
> reshapes the whole next-generation broadband competitive environment - 
> and will open up a wide range of new business opportunities for 
> 'traditional' DSL players.
>
> "This announcement shows that Alcatel-Lucent is seriously looking at 
> all possible innovations to help its customers speed up the deployment 
> of next-generation access networks, through a smart mix of advanced 
> copper and fibre technologies."
>
> If the technology can be commercialised economically within the next 
> few years it could have a significant impact on Australia's NBN. 
> Clearly the possibility of its network being able to deliver 100Mbps 
> via DSL to customers 1km from the exchange would considerably increase 
> the competitive threat the Telstra's existing network could pose to 
> the NBN.
>
> The throughput was achieved using a technology called "DSL Phantom 
> Mode". Gee Rittenhouse, head of Research for Bell Labs, suggested that 
> it has very real commercial possibilities.
>
> "What makes DSL Phantom Mode such an important breakthrough is that it 
> combines cutting edge technology with an attractive business model 
> that will open up entirely new commercial opportunities for service 
> providers, enabling them in particular, to offer the latest broadband 
> IP-based services using existing network infrastructure."
>
> According to Alcatel-Lucent, "At its core, DSL Phantom Mode involves 
> the creation of a virtual or 'phantom' channel that supplements the 
> two physical wires that are the standard configuration for copper 
> transmission lines."
>
> 'DSL Phantom Mode' appears to be a new phrase coined by Alcatel-Lucent 
> - a Google search produced no references that could not be traced back 
> to Alcatel-Lucent's press release - and the company's 'explanation' 
> throws little light on what it is or how it works.
>
> "Bell Labs' innovation and the source of DSL Phantom Mode's dramatic 
> increase in transmission capacity lies in its application of analogue 
> phantom mode technology in combination with industry-standard 
> techniques: vectoring that eliminates interference or 'crosstalk' 
> between copper wires, and bonding that makes it possible to take 
> individual lines and aggregate them."
>
> The demonstration took place in a laboratory and Alcatel-Lucent says: 
> "Further research is being conducted to refine deployment models and 
> determine a specific set of customer premises equipment models 
> compatible with the DSL Phantom Mode technology."
>
> However equipment vendors, and telcos, have long held out the promise 
> of boosting DSL bandwidth by bonding together two or more pairs, using 
> a technique known as dynamic spectrum management.
>
> --
>
> Skeeve Stevens, CEO/Technical Director
>
> eintellego Pty Ltd - The Networking Specialists
>
> skeeve at eintellego.net / www.eintellego.net
>
> Phone: 1300 753 383, Fax: (+612) 8572 9954
>
> Cell +61 (0)414 753 383 / skype://skeeve
>
> www.linkedin.com/in/skeeve ; facebook.com/eintellego
>
> --
>
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