Could we have gone all fibre rather than this G.Fast talk?

Did we miss an opportunity to get an FTTP+HFC rollout? Figures from NBN’s stragegic review suggest a two-stage FTTN to G.Fast upgrade could now cost more than if we just stuck with FTTP

Even before they’ve switched on a single Fibre to the Node customer — nbn, the company responsible for building the National Broadband Network, has been busy spruiking their plans to trial and eventually upgrade Fibre to the Node to G.Fast technology to the media.

However, acccording to estimates made in the company’s Strategic Review, building the Fibre to the Node network now and upgrading to Fibre to the Distribution Point (FTTdp) using G.Fast technology would have saved a mere $2 billion dollars compared with a “radically redesigned” Fibre to the Premises rollout.  Since then, blowouts in the Fibre to the Node rollout would have surpassed the said savings of $2 billion dollars.

Fibre to the Node: blowouts

The company had straight-out refused to publish a raw Fibre to the Node cost-per-premises figure in their Strategic Review. However, on page 101 of the Strategic Review, the company estimated that it will cost around $2 billion dollars to roll out 3.6 million premises using Fibre to the Node architecture.  This equates to approximately $555 — $833 per premises (assuming range of $2 — $3 billion dollars divided by 3.6 million premises).

The FTTdp upgrade cost breakdown in the Strategic Review
The FTTdp upgrade cost breakdown in the Strategic Review

According to the latest 2016 corporate plan, this cost has blown out to $1,600 per premises or a net increase of $767 — $1,045 per premises (excluding infrastructure lease which was not attributed to CPP in original calculations).

Current cost-per-premises projections as stated NBN's 2016 corporate plan
Current cost-per-premises projections as stated NBN’s 2016 corporate plan

nbn has also increased the FTTN/B/dp footprint from 3.6 million premises to 4.5 million.  From Fibre to the Node cost per premises alone, this has attributed to a net blowout of between $3.5 to $4.7 billion dollars from Strategic Review cost estimates — potentially overriding the savings of $2 billion envisaged in the VDSL–G.Fast upgrade path.

Fibre to the Premises: better than expected?

The issue with this is of course, comparing FTTN costs with costs that we’d never know.  We will never know exactly how much a “radically redesigned” FTTP rollout would have costed — but we can make estimates:

Comparing NBN’s estimates for Fibre to the Premises (Revised Outlook) in the Strategic Review with current Fibre to the Premises, figures shows they had over-estimated the capital expenditure of the FTTP rollout by about 11%: ~$4,100 in the Strategic Review ($1,997 for LNDN plus $2,100 for the activation, equating to $4,097 — see pages 62 and 64 of SR) vs $3,700 in the 2016 Corporate Plan.  This suggests better-than-expected costs in the Fibre to the Premises rollout costs.

But it’s too late anyway

But unfortunately, the company has already invested billions into developing the so-called Multi-Technology Mix and has a task to rollout Fibre to the Node thanks much to Government policy.  These are costs that taxpayers will never be able to recover, meaning we may have missed another opportunity to rollout FTTP in the majority of the now-FTTN footprint.

As the cost of the copper-based network increases, the comparative investment in those technologies become less attractive.  Speed and capacity upgrades require installing more active equipment in the field and also extending fibre closer to the home. Thus, incremental upgrades and ongoing operating expenses on a copper-based broadband network is far greater than those on a fibre-based network where only tail equipment has to be swapped out.

If the savings in building a copper-based network are relatively small in initial capital expenditure — eventually, the economics will reverse and bite back.

Since Fibre to the Node will now span the majority of the network, the only logical upgrade path for those areas would now be FTTdp because of all the capital costs sunken into rolling out FTTN.  But don’t think for a second that it will be actually cheaper than rolling out fibre all the way to the home in the first place.


In summary, if the Strategic Review’s figures are to be trusted, we may have missed yet another opportunity to get a FTTP network, albeit “radically redesigned” in nbn‘s vernacular.  Calculations suggest it could have cost less than what the current FTTN rollout plus a G.Fast upgrade in 2020 will cost.  Plus, the company has also proved at almost every instant that they had underestimated any non-FTTP costs in the strategic review and helpfully inflated any FTTP costs higher than actuals.

What are your thoughts?  The analysis, of course, makes assumptions based on the available data.  I think it’s a real pity how it seems time after time, taxpayer’s money ends up being wasted based on a false premise in a rushed report.

NBN Fibre to the Node Trial at Umina Beach

NBN waives and caps a ton of FTTN charges

Service provider feedback forces NBN to waive new charges to be introduced with the launch of the Fibre to the Node product.

Citing concerns by some service providers, the company responsible for building the National Broadband Network has decided to temporarily waive or cap a number of new charges “minimum period of 12 months” that were originally scheduled to be introduced with Fibre to the Node installations.

Professional filter installation: capped

Amongst the charges changed is the “professional installation” charge for Fibre to the Node and Basement areas, where a technician installs a central filter at the premises to reduce copper line interference.

Initially, nbn had wanted to charge service providers and in turn, end users, a variable cost depending on the number of hours the installer took to complete the installation.  The filter installation during the initial order would have had a base cost of $160 and the company would charge a further $75/hour for every hour beyond two hours plus any additional material costs.  Filter installations requested after the initial standard installation would have cost at least $235, plus every hour beyond three hours.

Extract from WBA 2.2 showing original charges for FTTN professional installations
Extract from WBA 2.2 showing original charges for FTTN professional installations

nbn says that some service providers “expressed concern that the basis on which NBN Co is going to charge for Professional Splitter Installations (i.e. on a time and material basis) would make it difficult for them to establish fixed prices for their retail offers.”  The company has now introduced capped pricing at $160 and $235 respectively, and will not charge for additional hours incurred or extra materials used in the installation.

Charges original proposed for professional fibre to the node installations capped
New capped pricing for the professional fibre to the node installations

Other costs waived

In addition to the changes to the filter installation, nbn has waived its right to charge service providers a number of other ancillary charges.  A number of service modification have been waived entirely such as equipment removal, modifications and repair.  These were originally charged at $75/hr for a minimum of 3 hours.  Service management charges for missed appointments, late cancellations, incorrect technician callouts and so-called “no fault found” callouts have also been waived for the FTTN and FTTB network.

For a full list of charges waived, check the Ancillary Charges Waiver discount notice and the Professional Splitter Installation Charges waiver letter published on the nbn website.

NBN Fibre to the Node Trial at Umina Beach

Initial NBN FTTN areas delayed to test processes

Last week, I reported that the activation of around 164 thousand NBN Fibre to the Node premises had been delayed by up to 4 months.

nbn, the company responsible for building the National Broadband Network, confirmed the delay to technology publication Delimiter.  The company says they have deliberately chosen a slower activation approach as it “allows us to test our own processes and systems and to identify any issues along the way.”

I suggest you read Renai’s article to get the full spiel from nbn™.

Inside an NBN node at Umina Beach

Analysis: 164k NBN Fibre to the Node premises delayed

Analysis of nbn’s monthly rollout schedule has revealed that the ambitious Fibre to the Node switch-on has been delayed for hundreds of thousands of premises by up to four months.

According to rollout information produced by the company rolling out the National Broadband Network, the ready for service dates for around 164 thousand premises in the NBN Fibre to the Node trial area have been delayed since the company’s estimates in May.

In May, the company estimated that 37,200 FTTN premises will be declared “Ready for Service” in September 2015 with another 35,200 premises added in October.  However, the latest monthly ready for service plan released by the company last week shows a mere 2,100 premises will be declared “Ready for Service” in September.  Delays continue into October, with only 9,600 premises expected to be activated in that month.

In total around 164 thousand premises have been pushed back by up to 4 months.

A full list of areas delayed can be found at the bottom of the post.

NBN's FTTN Expected Ready For Service dates are slipping
Graph: NBN’s FTTN Expected Ready For Service dates are slipping.
(Blue bars show estimates in May, orange bars show estimates in August.)

The raw data:

Table showing the change in the number of FTTN premises expected to be declared “Ready for Service” by nbn from May to August:

RFS Month May Rollout Schedule
(‘000)
Aug Rollout Schedule
(‘000)
Net change
(‘000)
Sep 2015 37.2 2.1 -35.1
Oct 2015 35.2 9.6 -25.6
Nov 2015 30 36.1 6.1
Dec 2015 28.5 39.2 10.7
Jan 2016 26 35.8 9.8
Feb 2016 47.2 53.9 6.7
Mar 2016 0.0 48.5 48.5

Table showing the full list of Service Area Modules (SAMs) where nbn has delayed the Ready for Service dates:

SAM Identifier May Rollout Schedule Aug Rollout Schedule Approx. # of premises Indicative localities
2BLT-03 Sep-2015 20-Nov-2015 2200 Tingira Heights, Windale, Mount Hutton
2BLT-07 Sep-2015 06-Nov-2015 3000 Floraville, Belmont North
2BLT-08 Sep-2015 02-Oct-2015 2200 Belmont
2BLT-01 Sep-2015 20-Nov-2015 2400 Warners Bay
2BLT-02 Sep-2015 20-Nov-2015 3200 Warners Bay, Mount Hutton
2GRK-01 Sep-2015 16-Oct-2015 4300 Kanwal, Tuggerawong, Wadalba, Wyongah, Hamlyn Terrace
2GRK-02 Sep-2015 23-Oct-2015 3100 Hamlyn Terrace, Warnervale, Woongarrah, Charmhaven
2GRK-03 Sep-2015 06-Nov-2015 3700 Gorokan, Lake Haven, Charmhaven
2GRK-04 Sep-2015 13-Nov-2015 4000 Gorokan, Lake Haven, Toukley, Canton Beach
2GRK-05 Sep-2015 13-Nov-2015 4000 Canton Beach, Norah Head, Noraville, Toukley, Budgewoi Peninsula
2GRK-06 Sep-2015 13-Nov-2015 3000 Kanwal, Warnervale, Hamlyn Terrace
2BLT-06 Oct-2015 27-Nov-2015 2500 Valentine, Croudace Bay
2BLT-04 Oct-2015 27-Nov-2015 2600 Windale, Jewells
2BLT-05 Oct-2015 27-Nov-2015 2900 Floraville, Valentine, Eleebana
4BBE-02 Oct-2015 Dec-2015 3100 Kalkie, Rubyanna, Bundaberg East
4BBE-08 Oct-2015 Dec-2015 2000 Bundaberg South, Bundaberg Central
4BBE-09 Oct-2015 Dec-2015 3500 Kensington, Norville, Svensson Heights, Bundaberg West
2BLT-10 Oct-2015 06-Nov-2015 2600 Blacksmiths, Marks Point, Pelican, Belmont South
4BBE-03 Oct-2015 Dec-2015 2500 Walkervale, Norville
4BBE-04 Oct-2015 Dec-2015 3100 Thabeban, Walkervale, Avenell Heights
4BBE-05 Oct-2015 Dec-2015 3300 Avenell Heights, Bundaberg South, Kepnock, Ashfield
4BBE-06 Oct-2015 Dec-2015 2900 Millbank, Svensson Heights, Bundaberg West
4BBE-01 Oct-2015 Dec-2015 1000 Bundaberg Central
4BBE-07 Oct-2015 Dec-2015 3200 Gooburrum, Bundaberg North
2BLR-01 Nov-2015 Dec-2015 1600 Cameron Park
2BLR-02 Nov-2015 Dec-2015 2700 Cameron Park, Edgeworth, Holmesville, Killingworth, Barnsley
2BLR-03 Nov-2015 Dec-2015 3600 Booragul, Marmong Point, Speers Point, Teralba, Boolaroo
2BLR-04 Nov-2015 Dec-2015 2700 Boolaroo, Speers Point, Argenton
4GYM-01 Nov-2015 Mar-2016 2300 Gympie
2BLR-05 Nov-2015 Dec-2015 2800 Edgeworth, Argenton
2BLR-06 Nov-2015 Dec-2015 1200 Seahampton, West Wallsend, Minmi
2MRS-02 Nov-2015 Mar-2016 3800 Bonnells Bay, Brightwaters, Mirrabooka, Morisset Park, Silverwater, Sunshine, Windermere Park, Yarrawonga Park, Balcolyn
2MRS-03 Nov-2015 Mar-2016 3100 Morisset, Cooranbong
4GYM-02 Nov-2015 Mar-2016 3400 Southside, Jones Hill
2MRS-01 Nov-2015 Mar-2016 2800 Dora Creek, Morisset, Bonnells Bay
2WOY-01 Dec-2015 Feb-2016 500 Umina Beach
2WOY-03 Dec-2015 Feb-2016 3100 Umina Beach, Ettalong Beach
2HAM-10 Dec-2015 Jan-2016 1800 Hamilton, Broadmeadow
2WOY-04 Dec-2015 Feb-2016 2900 Booker Bay, Daleys Point, Ettalong Beach, St Huberts Island, Blackwall
2HAM-01 Dec-2015 Jan-2016 3100 Kooragang, Tighes Hill, Carrington
2WOY-05 Dec-2015 Feb-2016 2100 Woy Woy, Blackwall
2WOY-06 Dec-2015 Feb-2016 2600 Umina Beach
2HAM-13 Dec-2015 Jan-2016 1400 Hamilton East, Newcastle West, Wickham, Hamilton
2HAM-14 Dec-2015 Jan-2016 1600 Newcastle West, The Junction, Hamilton East
2WOY-08 Dec-2015 Feb-2016 3100 Kincumber, Yattalunga, Green Point
2HAM-02 Dec-2015 Jan-2016 4100 Newcastle West, Newcastle
2HAM-05 Dec-2015 Jan-2016 2200 Cooks Hill, Newcastle West, The Hill, Bar Beach
2WOY-02 Jan-2016 Feb-2016 2600 Pearl Beach, Umina Beach, Patonga
2WOY-10 Jan-2016 Feb-2016 1700 Killcare, Killcare Heights, Pretty Beach, Wagstaffe, Box Head
2WOY-11 Jan-2016 Feb-2016 2100 Empire Bay, Bensville
2WOY-12 Jan-2016 Feb-2016 3000 Saratoga, Davistown
2WOY-13 Jan-2016 Feb-2016 1900 Woy Woy, Koolewong
4BRI-01 Feb-2016 Mar-2016 2900 Woorim, Bongaree
4BRI-02 Feb-2016 Mar-2016 3300 Bongaree
4WRN-01 Feb-2016 Mar-2016 1700 Brendale
4BRI-03 Feb-2016 Mar-2016 2700 Bellara, Banksia Beach
4BRI-04 Feb-2016 Mar-2016 2800 Welsby, White Patch, Banksia Beach
4WRN-04 Feb-2016 Mar-2016 2500 Lawnton
4WRN-05 Feb-2016 Mar-2016 3500 Joyner, Lawnton, Warner, Bray Park
4WRN-07 Feb-2016 Mar-2016 1500 Warner, Brendale
4WRN-06 Feb-2016 Mar-2016 2900 Joyner, Warner, Cashmere
Inside an NBN node at Umina Beach

nbn™ reveals staggered FTTN launch date

nbn staggers FTTN commercial launch date depending on ISP’s state

nbn, the company responsible for building the National Broadband Network, has updated their website stating that the commercial launch date for their Fibre to the Node network depended on the Access Seeker’s “registered office or principle (sic) place of business is located in Queensland”.

For most access seekers, the date for commercial launch is on Friday 18 September 2015.  For access seekers located in Queensland, the commercial launch date is on the Monday after – on 21 September 2015 (or as advised by NBN Co).

The company has not indicated on their website why the date was staggered across the weekend for the different states.

SkyMesh first to offer speeds over 100/40 on NBN

Last night, internet service provider SkyMesh announced on broadband forum Whirlpool their new offering of symmetric 100/100Mbps download and upload speeds over nbn™ fibre to residential customers.  SkyMesh is the first nbn service provider to offer speeds of over 100/40Mbps to residential connections.

SkyMesh Managing Director, Paul Rees, says the push to provide 100/100 Mbps services came from their customers.  “I think it was first suggested on Whirlpool, then customers started calling to ask if we could provide any faster upload speeds at their premises.”

Paul says the interest initially came from small business customers who backup their data to the Cloud.

“We have a few customers who are graphic artists and one video production company that produces television advertising.  They were looking for a faster way to upload their large files, then they saw the faster speed plans on our website and called us.”

“These faster upload speeds are also ideal for people who use Dropbox and other file sharing applications.”

Plan costs stated on their website start at $99.95 with 30GB anytime data and 60GB off-peak data, with options to go to 2.4TB anytime data and 16TB off-peak data for $199.95.  The prices represent an increase of between $40-$50, compared with those with similar data allowances on the company’s 100/40Mbps plan.

SkyMesh's website showing 100/100 Mbps plans and pricing
SkyMesh’s website showing 100/100 Mbps plans and pricing

SkyMesh also states that can offer custom plans with and “will also do our best to match any Plan published by a competing NBN Co Access Seeker”.  However, with no other access seeker offering symmetrical 100Mbps speeds to residential customers, there is little opportunity to compare pricing.

Innovative use of 250/100 Mbps AVC

nbn™, the company responsible for running the National Broadband Network, does not offer symmetrical port speeds (AVC) of 100 Mbps over Traffic Class 4.  However, the service provider has indicated that they will instead use the 250/100 Mbps AVC option and speed limit the download to 100 Mbps while retaining uploads at full speed.  The higher tier AVC costs $35.20 including GST ($32.00, excl GST) more than the 100/40Mbps ($70 vs $38, excl GST).

Availability

The company states that “nbn co only offers the relevant AVC product to Fibre and FTTB services”. However, they will only be “offering these plans to end users on nbn™ fibre”.

SkyMesh also notes on its website that “plans faster than 100/40 Mbps are available at most, but not all, locations”.  They elaborate on their announcement thread on Whirlpool that some premises in the following areas will not have access to those speeds until nbn™ completes network upgrades:

  • Aitkenvale QLD
  • Armidale NSW
  • Bacchus Marsh VIC
  • Bombo NSW
  • Casey ACT
  • Goodna QLD
  • Jamberoo NSW
  • Kanahooka NSW
  • Kiama NSW
  • Minnamurra NSW
  • Mundingburra QLD
  • Redbank QLD
  • Willunga SA

SkyMesh is leading the way

The company, who has a direct relationship with nbn co, was originally a wireless and satellite broadband company offering services over their own wireless network in South East Queensland and on the IPSTAR.  However, with the rollout of the National Broadband Network, the company began offering services over nbn™ fibre, nbn™ fixed wireless and nbn™ interim satellite.

Since it started offering nbn services, it has become one of the most innovative providers.  It was one of the few service providers who trialed the up to 50/20 Mbps speed tier on nbn™ fixed wireless this year before its commercial launch, and will also be trialing the nbn™ long term satellite with select customers before its commercial launch next year.

The company is also the only service provider to offer unmetered Netflix traffic to customers over nbn™ fixed wireless, and also offers this feature to nbn™ fibre customers.

NBN Fibre to the Node Trial at Umina Beach

nbn™ releases MTM network design rules

Following the adoption of the Multi-Technology Mix, the company responsible for building the network – nbn™, has released an updated version of the Network Design Rules document which dictates how the NBN is designed across all technologies.

In the document, dated 30th June and released today to the public, the company outlines changes to the network planning process for the MTM.  Below are some highlights:

NBN removes protected fibre paths

With the implementation of the MTM, the company has done away with the original “ring topology” in the distribution fibre network, which was designed for fault tolerance allowing at least two paths for data to flow to and from the end user in the case of damage to the fibre network.

nbn™ states that a “star DFN topology” will be used instead, citing cost efficiencies in construction:

The Star DFN topology is the default for the Fixed Access build (post-Multi Technology Mix) to achieve cost efficiencies in construction.

nbn™ is introducing the star topology for the MTM rollout to save money
nbn™ is introducing the star topology for the MTM rollout to save money
NBN has now phased out the fault tolerant "Ring Topology" DFN  used in the existing GPON FTTP network
NBN has now phased out the fault tolerant “Ring Topology” DFN used in the existing GPON FTTP network

In addition to the shift to the star topology, by default, only a 12-fibre core sheath will be used to connect an NBN node in a NBN Copper Access environment. This may limit the company’s ability to swap out copper nodes for a passive fibre rollout in the future.

FTTN and FTTB won’t have an NTD, HFC will

The company’s updated network design rules also provides insights into the CPE (Customer Premises Equipment) for the new technologies being introduced into the network.

For customers on the Fibre to the Node (FTTN) or Fibre to the Basement (FTTB) networks, nbn™ will not provide the VDSL2 modem required to connect to the network:

A VDSL2 modem (provided by the Access Seeker or end user). This is on the customer side of the nbn™ network boundary and is not discussed further in this document.

However, NBN Co will provide an NTD for customers in the HFC footprint.

The HFC NTD terminates the incoming physical coax cable at the end-user premises and provides one User to Network Interface (UNI). The HFC NTD will have the following:

  • 1 x coax interface
  • 1 x UNI-Data interfaces

The HFC NTD has not yet been finalised and will be the subject of an RFP.

Unlike the NBN Fibre, NBN Fixed Wireless and NBN Satellite footprints, the HFC NTD is expected to only feature one data port and no voice ports.

NBN copper nodes to include 48, 192 and 384 variants

nbn™ has listed that DSLAMs with 48, 192 and 384 ports will be used in the FTTN and FTTB network, with “further DSLAM sizes, are currently under investigation”.

Table of NBN Copper DSLAM options
Table of NBN Copper DSLAM options

The company says they will prioritise interconnecting their network with the existing copper plant “directly into the pillar” where possible, or alternatively, inject the VDSL2 signals into existing or new downstream and upstream joints.

Each DSLAM will also be served by 4 point-to-point fibres, with at least 2 spares for migration and expansion purposes.  Each fibre is configured to aggregate 1GE of traffic back to the newly introduced Access Aggregation Switch located at the Fibre Access Node site, typically housed at an existing Telstra exchange.

nbn™ introduces an Access Aggregation Switch (AAS) to combine traffic from multiple nodes to the POI
nbn™ introduces an Access Aggregation Switch (AAS) to combine traffic from multiple nodes to the POI

NBN Co’s updated Network Design Document can be found here.

 

NBN Fibre to the Node Trial at Umina Beach

It’s official: MTM takes over

Today, nbn™ updated their rollout map to include new areas where build preparation commenced last month.  As predicted on jxeeno blog last month, this month marks a milestone in the company’s implementation of the Multi-Technology Mix rollout methodology with all 152 of the new Serving Area Modules added set to MTM.

None of the areas added this month will use purely Fibre to the Premises – however, it is expected parts of some Serving Area Modules may use FTTP where economically feasible as part of the company’s established MTM deployment principles.  The majority of premises in the listed areas are expected to get a Fibre to the Node or Fibre to the Basement connection.  A further breakdown of technology-by-area or premises is not available on the company’s public website.

This comes as the company revealed that customers in the FTTN footprint will only be guaranteed 12/1 mbps during the transition period while ADSL services still exist on the copper network.

(more…)

NBN Fibre to the Node Trial at Umina Beach

nbn™: criteria for copper remediation revealed

Service may only reach the speed range once within 24 hours

The company building the National Broadband Network, nbn, has released details how it proposes to classify premises where “remediation is required”.

In the most recent draft of the Wholesale Broadband Agreement (WBA 2.2) released Access Seekers for FTTN Business Readiness Testing, nbn revealed that “NBN Co will designate that Remediation is required” where “25 Mbps downstream and 5 Mbps upstream for all bandwidth profiles other than 12 Mbps downstream and 1 Mbps upstream”.  The company also included an exception clause for the Fibre to the Node network where the speed is limited to 12/1 Mbps during the co-existence “transition” period.

While a premises is being designated for remediation, nbn™ says that speeds may be “significantly less than” the speeds ordered by the customer.

NBN Co outlines how premises that require remediation are classified
NBN Co outlines how premises that require remediation are classified

The company has also revealed for ranging speed tiers such as those used for the Fibre to the Node and Fibre to the Basement products, the performance criteria for the Peak Information Rate (PIR) may only be reached the specified range “once” within a 24 hour period.

NBN Co outlines its speed performance criteria for Peak Information Rate (PIR)
NBN Co outlines its speed performance criteria for Peak Information Rate (PIR)

However, this performance guarantee applies only applies to the network that nbn™ provides to the service providers.  Additional factors such as service contention set by service provider may further degrade services received by the end user.

Inside an NBN node at Umina Beach

nbn™: FTTN limited to 12/1 Mbps during transition

While legacy services such as ADSL2+ exist on the Telstra copper network, speeds will be limited to reduce interference.

Despite what the documentations says, nbn™ has now denied (on the record) that they will “limit” speeds to 12/1.  Please refer to this post here for more information.

In the most recent draft of the Wholesale Broadband Agreement (WBA 2.2) released Access Seekers for FTTN Business Readiness Testing, nbn has revealed that speeds will be limited to 12/1 Mbps during the so-called “Co-existence Period” on the Fibre to the Node network.

During this period, all bandwidth profiles will be restricted to reduce interference with existing legacy services that run on the Telstra network.  A similar limitation will apply to Fibre to the Basement, however, the maximum speed will be limited to 25/5 Mbps rather than 12/1 Mbps.

Table showing the speed limitations for FTTN/FTTB during Co-existence Period
Table showing the speed limitations for FTTN/FTTB during Co-existence Period

In the document, the company said that the speeds will continue to be limited until “NBN Co is satisfied that Downstream Power Back-off is no longer required”:

11.5 Co-existence Period
NBN Co will disable Downstream Power Back-off in respect of an NBN Co Node when NBN Co is satisfied that Downstream Power Back-off is no longer required in respect of that part of the NBN Co FTTB Network or NBN Co FTTN Network (as the case may be). The Co-existence Period for Ordered Products supplied by means of that NBN Co Node will cease at such time.

FTTN BRT Special Terms – WBA 2.2 Draft – NEBS Product Description

Despite explicit wording of the documentation, however, a spokesperson for nbn™ has denied to technology publication ZDNet that they will limit speeds.  Instead, they have indicated that they will guarantee speeds of at least 12/1 mbps.

During the period when NBN is upgrading a suburb with ADSL to VDSL2 speeds will not be limited to 12/1Mbps. During this so-called ‘co-existence period’ line speeds on the NBN FttN service will still be substantially faster than those being delivered via ADSL2+ from the exchange

For customers who live close to the exchange, the speed attainable over the Fibre to the Node network may actually be lower during the “Co-existence period” than what’s possible over their existing ADSL2+ service.  The typical theoretical maximum speed for ADSL2+ is 24/1 Mbps and is delivered from the Telstra exchange.

ADSL and special services will "co-exist" with FTTN/FTTB during the transitional Co-existence Period
ADSL and special services will “co-exist” with FTTN/FTTB during the transitional Co-existence Period

However, since the duration of the Co-existence period varies depending in the area still using ADSL or special services – customers who experience greater speeds over ADSL2+ (greater than the 12/1 Mbps offered) would still need to migrate to NBN before NBN Co can declare the “Co-existence period” over.

Once the Co-existence Period is over, nbn™ will provide 12/1 Mbps and 25/5 Mbps speed profiles similar to those on Fibre to the Premises with higher speeds only available as an “up-to” range.  However, NBN Co also states in the document that it is considered acceptable if the customer only receives speeds set out in the PIR or PIR range “once” in 24 hours.

Table showing the FTTN/FTTB AVC speed ranges in the draft of WBA 2.2
Table showing the FTTN/FTTB AVC speed ranges in the draft of WBA 2.2

FTTN BRT Special Terms – WBA 2.2 Draft – NEBS Product Description (PDF)