[AusNOG] Highest ADSL2 internet connection speed

Thu Jul 29 12:02:21 EST 2010

Not as surprised as I was!  It took a few goes at the order to get it
right, there's only so many times you can get an 'Incorrect deployment
class' message before you start going back to your distance/resistance
calculations. 

Deployment classes aren't strictly distance based, they're actually on
power levels injected at certain levels of resistance calculated over
distance; the 1.1km full speed range is based on an average of 0.4 PUIT
copper.  This run happened to have a large section of 0.6 PUIT as the
exchange service area was split for the installation of a new exchange
some years ago, and a lot of new, high quality line went in.  So that is
actually still obeying the deployment class rules, just got super lucky
with the cable run.

Cheers,

--
Chris Pollock
Technical & Install Manager
PIPE Networks Limited

PPC-1 is now live!
6900 km, 20 Months, 2.56 Tbps, 12.5 kilovolts, $200 Million and 100%
Australian Owned.
http://www.pipeinternational.com <http://www.pipeinternational.com/> 

Mobile :  +61 4 1074 7765
Phone :  +61 7 3233 9813
Fax     :  +61 7 3233 9885
Web    :  www.pipenetworks.com <http://www.pipenetworks.com/> 

________________________________

	From: Matthew Moyle-Croft [mailto:mmc at internode.com.au] 
	Sent: Thursday, 29 July 2010 11:34 AM
	To: Chris Pollock
	Cc: ausnog at ausnog.net
	Subject: Re: [AusNOG] Highest ADSL2 internet connection speed

	Hi Chris, 

	I haven't looked, but I'm surprised you're running 9q at 1.9km.
But as I said before, the legal limitations allow us to deliver much
less than what the equipment is capable of.

	(We've got a range of pairs in a range of deployment classes due
to distance at various locations).

	MMC

	On 29/07/2010, at 10:19 AM, Chris Pollock wrote:

		Yes, exactly - not difficult to get full speed at
sub1km, in fact it's expected - every single successful order we've
placed has been in deployment class 9q.

		My question for you MMC is, what's the greatest distance
over which you've achieved full speed per pair?

		I've got a single pair on a HN402 sync'd at full speed
travelling over 1.9km of copper.  It's interesting, the expected tailoff
vs what we see in the real world - the equipment seems to be capable of
better speeds than expected.

		Cheers,
		--
		Chris Pollock
		Technical & Install Manager
		PIPE Networks Limited

		PPC-1 is now live!
		6900 km, 20 Months, 2.56 Tbps, 12.5 kilovolts, $200
Million and 100% Australian Owned.
		http://www.pipeinternational.com
<http://www.pipeinternational.com/> 

		Mobile :  +61 4 1074 7765
		Phone :  +61 7 3233 9813
		Fax     :  +61 7 3233 9885
		Web    :  www.pipenetworks.com
<http://www.pipenetworks.com/> 

________________________________

			From: ausnog-bounces at lists.ausnog.net
[mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Matthew
Moyle-Croft
			Sent: Thursday, 29 July 2010 10:38 AM
			To: Marcus Emanuel @ HostCorp
			Cc: ausnog at lists.ausnog.net; Paul Brooks
			Subject: Re: [AusNOG] Highest ADSL2 internet
connection speed

			On 29/07/2010, at 9:14 AM, Marcus Emanuel @
HostCorp wrote:

				Anyone have any feedback on EFM Circuits
and speeds seen, pairs required to bond for 10Mbit over certain
distances etc?

			SHDSL is different to ADSL in terms of the
deployment classes and how they're done.  

			The limitation about speed is much more related
to the deployment class than what's technically possible.   Our EFM
equipment quite happily maxes 5.7Mbps/pair when allowed to, but as
distance increases beyond 1km, what speed you're allowed to do drops.

			We have many pairs which are running happily at
the 5.7Mbps/pair maximum.  So delivering 10Mbps within 1km or so of the
exchange is fairly straightforward.

			MMC

				Cheers,
				Marcus.

				From: Paul Brooks
[mailto:pbrooks-ausnog at layer10.com.au] 
				Sent: Thursday, 29 July 2010 8:51 AM
				To: Marcus Emanuel
				Cc: ausnog at lists.ausnog.net
				Subject: Re: [AusNOG] Highest ADSL2
internet connection speed
				On 28/07/2010 9:33 AM, Marcus Emanuel
wrote:
				This is a STABLE connection using
Internode ADLS2+ Extreme Annex M in York St Sydney
				This is on a Linksys/Cisco WAG 160n
				Status: Up
				Downstream Rate: 23855 Kbps
				Upstream Rate: 2691 Kbps

				It doesent beat your 24xxx down but 2.69
up is very good.

				It would be VERY interesting to see what
it synced at if you turn Annex M mode off - Annex M 'steals' downstream
channels and makes them upstream channels, and it is the lower frequency
channels, which contribute most to the aggregate, that are most
affected. Turning off "annex M mode" is likely to push at least 1200
kbps or more back to the downstream - and take the record!

				(if you do try this, please get the
customer's permission first!)

				Paul.

				<ATT00001..txt>

			-- 
			Matthew Moyle-Croft
			Peering Manager and Team Lead - Commercial and
DSLAMs
			Internode /Agile
			Level 5, 162 Grenfell Street, Adelaide, SA 5000
Australia
			Email: mmc at internode.com.au    Web:
http://www.on.net <http://www.on.net/> 
			Direct: +61-8-8228-2909      Mobile:
+61-419-900-366
			Reception: +61-8-8228-2999        Fax:
+61-8-8235-6909

	-- 
	Matthew Moyle-Croft
	Peering Manager and Team Lead - Commercial and DSLAMs
	Internode /Agile
	Level 5, 162 Grenfell Street, Adelaide, SA 5000 Australia
	Email: mmc at internode.com.au    Web: http://www.on.net
<http://www.on.net/> 
	Direct: +61-8-8228-2909      Mobile: +61-419-900-366
	Reception: +61-8-8228-2999        Fax: +61-8-8235-6909

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