Australian Politics Forum - Primer on networking and the NBN, wireless bb etc

St George of the Garden

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Re: Primer on networking and the NBN, wireless bb etc
Reply #15 - Jan 28^th, 2014 at 2:25pm

Well well, from ZD Net comes news of a trial of FTTB (Fibre to the Basement) with a special exemption:

Quote:

NBN Co and the retailer must both agree on the test customers taking part in the trial, and NBN Co is responsible for installing a splitter in the premises that will be inserted into a wall socket with a data line and a voice line. NBN Co will also connect an approved ADSL or VDSL2 modem in the premises for the test of the service.

The conditions of the agreement state that NBN Co "will have no liability for crosstalk at a pilot site caused by, or contributed to by, the FttB pilot". The participant in the trial is also not allowed to make any claim on crosstalk in relation to the pilot, NBN Co said.

Crosstalk over the copper line degrades the quality of the service on VDSL, but the government has said it would eventually explore the use of vectoring to reduce the crosstalk and improve broadband speeds on VDSL. Telstra and Alcatel-Lucent have already begun testing vectored VDSL.

http://www.zdnet.com/au/nbn-co-seeks-exemption-for-vdsl-interference-7000025538/

Vectoring just is not going to work for FTTN here, and probably won’t work on all MDUs either. All depends on the state and thickness of the copper within each MDU.

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# Gold Member Offline A fool is certain: an ignorant fool, absolutely so Posts: 2603	Re: Primer on networking and the NBN, wireless bb etc Reply #16 - Jan 28^th, 2014 at 2:51pm St George of the Garden wrote on Jan 28^th, 2014 at 12:37pm: ...we can do that by increasing the frequency of the signal, ... Not exactly clear there. Perhaps add something to the effect that the data signal is submodulated onto a carrier. It's the carrier frequency you're talking about.
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St George of the Garden Gold Member Offline http://tinyurl.com/n 3o8m2x Posts: 9809 Gender:	Re: Primer on networking and the NBN, wireless bb etc Reply #17 - Jan 28^th, 2014 at 3:05pm I was thinking of mentioning the pattern of the square waveform. OK will go back later and beef that up.
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Re: Primer on networking and the NBN, wireless bb etc
Reply #18 - Jan 29^th, 2014 at 2:49pm

St George of the Garden wrote on Jan 28^th, 2014 at 3:05pm:

I was thinking of mentioning the pattern of the square waveform.

OK will go back later and beef that up.

That level of detail would probably serve only to confuse the less technical. I'd also leave out PSK, TDM/FDM and the like, even though they're relevant.

Beginning to see where my headache came from?

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St George of the Garden Gold Member Offline http://tinyurl.com/n 3o8m2x Posts: 9809 Gender:	Re: Primer on networking and the NBN, wireless bb etc Reply #19 - Jan 29^th, 2014 at 4:28pm You are over thinking the issue. BASIC as F*CK
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Neferti Gold Member Offline Posts: 7965 Canberra Gender:	Re: Primer on networking and the NBN, wireless bb etc Reply #20 - Jan 29^th, 2014 at 5:00pm St George of the Garden wrote on Jan 29^th, 2014 at 4:28pm: You are over thinking the issue. BASIC as F*CK ?
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Aussie Gold Member Online OzPolitic Posts: 38838 Gender:	Re: Primer on networking and the NBN, wireless bb etc Reply #21 - Jan 29^th, 2014 at 5:44pm **
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BatteriesNotIncluded

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Re: Primer on networking and the NBN, wireless bb etc
Reply #22 - Jan 29^th, 2014 at 6:25pm

“The performance of data uploading features strongly in a variety of case studies of iiNet small business customers,” the company wrote. “In all cases, upload performance is the key to their purchasing decision.

Nowhere in the strategic review is there any consideration of upload performance to the small business sector of the economy, or at all.

Any business utilizing broadband will confirm that upload performance is ‘mission critical’ and yet little attention has been given to this issue, which is strategically important to the Australian digital economy.”

Source: paragraph 17, http://delimiter.com.au/2014/01/29/policy-vacuum-iinet-slams-politicians-nbn-fai...

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St George of the Garden Gold Member Offline http://tinyurl.com/n 3o8m2x Posts: 9809 Gender:	Re: Primer on networking and the NBN, wireless bb etc Reply #23 - Jan 29^th, 2014 at 7:01pm Yup, upload speeds the key.
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BatteriesNotIncluded

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Re: Primer on networking and the NBN, wireless bb etc
Reply #24 - Jan 29^th, 2014 at 9:21pm

Yet, while the NBN Strategic Review (SR) seemed to triumphantly debunk earlier revenue forecasts and a planned IRR of 7.1 percent as over-ambitious – and suggested that the proposed multi-technology alternative offered better return on the government's investment – close examination of the figures in the review suggest that this conclusion has only been possible through egregious manipulation of the truth.

Source: paragraph 2, http://www.zdnet.com/creative-maths-taint-nbn-strategic-reviews-revenue-argument...

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St George of the Garden

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Re: Primer on networking and the NBN, wireless bb etc
Reply #25 - Jan 30^th, 2014 at 7:20am

Yeah, DRAH, some of the manipulation involves:

1. Artificially slowing the rollout—this pushes back the completion date and means the NBN is deprived of revenue.

2. Making up a figure for the total cost of rolling out the NBN, so the cost went from $43Bn to $73Bn but this is a made up figure to try to make fraudband look better.

3. The cost of Fraudband was rather more than Turncoat said, hence the need for 2.

4. Leaving out the cost of acquiring the copper and the HFC networks

5. The cost of 3. is understated, does not include the two audits that will be necessary to determine the exact state of the copper and identifying exactly what wiring goes where and which pairs are real pairs and which is a “pair” made up using one good wire from two broken pairs (which rules out xDSL.)

6. Because of 5. the cost of remediating the copper is unknown (but we know it will be substantial!) The cost of Fraudband will be much, much more than the figure in the Strategic Review.

Points 1-6 are fully supported by a reading of the extracts of the Hansard of the Estimates Committee that I posted in the main NBN thread.

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BatteriesNotIncluded

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Re: Primer on networking and the NBN, wireless bb etc
Reply #26 - Feb 3^rd, 2014 at 6:04am

http://delimiter.com.au/2014/01/31/bt-hikes-fttp-demand-prices/#commenting

news UK wholesale telco BT Openreach has substantially increased the prices it is charging customers for extending fibre broadband from local neighbourhood ‘nodes’ all the way to premises, in a move which calls into question the Coalition Federal Government’s plan to use the service in its Coalition Broadband Network plan.

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St George of the Garden Gold Member Offline http://tinyurl.com/n 3o8m2x Posts: 9809 Gender:	Re: Primer on networking and the NBN, wireless bb etc Reply #27 - Feb 3^rd, 2014 at 7:39pm It would cost even more here—longer distances. And it is a silly concept—trench, run fibre all down the street, connect the house at the end of the street but none of the other houses—what a complete waste!
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BatteriesNotIncluded

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Re: Primer on networking and the NBN, wireless bb etc
Reply #28 - Feb 4^th, 2014 at 1:09am

St George of the Garden wrote on Feb 3^rd, 2014 at 7:39pm:

It would cost even more here—longer distances. And it is a silly concept—trench, run fibre all down the street, connect the house at the end of the street but none of the other houses—what a complete waste!

"Productivity" Oh yehhhhhhhh, party time for life Shocked

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*Sure....they're anti competitive as any subsidised job is. It wouldn't be there without the tax payer. Very damned difficult for a brainwashed collectivist to understand that I know.... (swaggy) *

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BatteriesNotIncluded Gold Member Offline MediocrityNET: because people died for this! Posts: 26966	Re: Primer on networking and the NBN, wireless bb etc Reply #29 - Feb 4^th, 2014 at 1:12am Hey george: can a mansion be crowd sourced for the first news ltd journo to con turnbull into saying the aforementioned word i wonder??????????? Hey, go the interwebs mate yehhhhhhhhhhhhh
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