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Consult21 Portfolio Working Group.From IPstream to 21CN Broadband. Workshop
21stMay 2009
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BT Legal, Confidentiality & Cautionary Statements
The information contained in this Presentation is provided in confidence for discussion purposes only.This Presentationis the copyright of British Telecommunications plc (“BT”). Reproduction of this Presentation is permitted only in its entirety, to disseminate information on the BT Network within your organisation. You must not edit or amend any part of the presentation or reproduce extracts. You must not remove BT trade marks, notices, headings or copyright markings.Cautionary Statement -BT\'s 21st Century Network is still in the process of development and the subject of consultation. BT has taken reasonable care to check that the information contained in this presentation was accurate at time of publication but it may be subject to change.In relation to any products/services referred to in this presentation which are currently under development and/or trial, BT gives no undertaking or other commitment that the product/service will be made commercially available. With the exception of any products which have already been launched, any notification timescales, launch dates and pricing information provided is indicative only and will, where applicable, be subject to the successful outcome of any trial and to any legal and regulatory approvals being given. BT shall have no liability in contract, tort or otherwise for any loss or damage, howsoever arising from use of, or reliance upon, the information in this document by any person.Publication of this Presentation does not give or imply any licence to any intellectual property rights belonging to British Telecommunications plc or others. All third party trademarks are hereby acknowledged.Registered office: 81 Newgate Street, London EC1A 7AJRegistered in England no. 1800000
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Agenda
.Objectives for the session
.Overview of new Broadband products
.Wholesale Broadband Connect (WBC)
.IPstream Connect (IPSC)
.Wholesale Broadband Managed Connect (WBMC)
.Migration options/scenarios that CPs can adopt
.CPE compatibility and vendor testing programme
.Enhanced Dynamic Line Management (DLM) capabilities
.Product/profile options for EUs
.Consultation update
.Withdrawal framework for Centrals
.Proposed withdrawal framework for IPstream EUA
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WBC Overview
Andy MaddocksProduct ManagerBTW
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Wholesale Broadband Connect (WBC)
MSAN
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DSLAM
MSAN
20C BRAS
21C BRAS
Aggregation Point (x 20)
EoI
femtocell.jpg
laptop3.jpg
3g.jpg
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MSIL
LLU
CP Network
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WBC traffic is picked up at one of the 20 Aggregation Points so that a CP can use its own backhaul network.
CP Network
Communications
Provider A
SVLAN conveys traffic with QoS capability (Best Efforts, Assured, Real Time*)
*Real Time yet to be launched. Development date TBC.
Wholesale Broadband Connect (WBC) is the ADSL2+ based 21C broadband product. Like IPStreamConnect, it can be used in conjunction with
the CP’sown backhaul network (i.e. it is a local access only product). This product provides higher speeds and QoSfeatures.
Extension Path
End User Access
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WBC Benefits
.Input product for services based on the convergence of voice, mobility, video, data & content.
.High-speed broadband
.Improved Dynamic Line Management
.More choice of Quality of Service options
.Future access capability with fibre
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WBC Performance Targets
.Assured Rate
.Session Blocking Ratio: 1% during the busy period
.Best Efforts Elevated EUA
.Throughput: Above 3Mb for 90% of the time during the 3-hour busy period
.Best Efforts Standard EUA
.Throughput: Above 2Mb for 90% of the time during the 3-hour busy period
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WBC Footprint
Location
2008/9
Existing Sites
2009/10
Additional sites planned (as Dataset 37)

Market 3
528
297

Market 2
15
5

Market 1
6
0

Total
549
302

The following documents can now be found in the Secure area of the Consult21 website -www.btwholesale.com/consult21:21CN Deployment Strategy Plan (DSP) -C21-MG-01521CN Product Plans -C21-MG-016Service availability briefingextending the footprint coverage to up to 55% of the UK this year……..Service Availability (datasets)http://www.btwholesale.com/pages/sc/static/Network_Info/21CN_Service_Availability_and_Network_Inventory.html
First Sites Available by Oct 09Extending the footprint coverage to up to 55% of the UK this year
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CommunicationProvider A
MSAN
DSLAM
20C BRAS
21C BRAS
Aggregation
Point (x 20)
MSIL
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FTTC
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L2S
FTTP/GPON
ExchangeLevel
StreetLevel
GEA POHNode
Core Node
Backhaul
BTW -WBMC
(MPLS/DWDM)
ADSL2+
VDSL2
ADSL1
WBC Fibre to the Cabinet (FTTC)
(~1000)
WBC Customers will be able to have service delivered
Via WBC ADSL 2+ or  FTTC
WBC FTTC is provided by a DSLAM located in the street rather than in the exchange.
The DSLAM is then connected to the exchange by a fibre. PSTN service continues to be offered over the copper pair.
This can offer much higher Broadband line rates to End Users using VDSL 2  technology.
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IPSC Overview
Doug Simmons
Product Manager
BTW
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IPSC Overview
.10 Sites
.Handover charge
.Interconnect Links
.21C: 1Gb or 10Gb
.20C: 1Gb only
.Bandwidth (node measurement and billing)
.EUA
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IPSC Overview
SMPFBRASIPStream Connect EUAIPStream Connect handover componentEoI boundaryOpenreachEoI boundaryInterconnectCPInterconnect20C-21C link
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WBMC Overview
Lee MartinProduct ManagerBTW
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Wholesale Broadband Managed Connect
Communications
Provider A
MSAN
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DSLAM
MSAN
20C BRAS
21C BRAS
Aggregation
Point (x 20)
MSIL
EoI
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3g.jpg
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BTW -WBMC(MPLS/DWDM)
WBMC takes WBC and adds BT 21C backhaul capability. It is more cost-effectiveand has greater bandwidth flexing capability than 20C backhaulWBMC Shared: Over MPLS network, for mid-sized CPsWBMC Dedicated: Bespoke built network over DWDM, for largest CPs
Host Link (WES)
SVLAN conveys traffic with QoS capability (Best Efforts, Assured, Real Time*)
ADSL2+ (24Mb max speed)
*Real Time yet to be launched. Development date TBC.
Fully managed end-to-end 21C product offering
Access to both 20C and 21C End Users
Commercially competitive
Wholesale Broadband Managed Connect incorporates all of WBC.s features but also includes BT.s own 21C backhaul capacity, making it an end-to-end solution (i.e. local access and backhaul)
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WBMC Consuming IPSC
MSAN
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DSLAM
MSAN
20C BRAS
21C BRAS
Aggregation Point (x 20)
MSIL
EoI
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BTW -WBMC
(MPLS/DWDM)
Host Link
During transition to 21C, CPsbuying WBMC connect will have a periodwhere they are running parallel networks and incurring the costs associated
WBMC Consuming IPstream Connect is where both 20C & 21C
traffic is routed across the same WBMC backhaul.
Central
BTW -Colossus
The legacy 20C Central backhaul can be retired once the conversion
to WBMC has been completed.
WBMC Consuming IPStreamConnect is where both the WBC and IPStreamConnect local access traffic are carried over the same single 21C backhaul. For a period of time (as illustrated) there are two backhaul networks until the transition is completed.
CommunicationsProvider A
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WBMC: The Two Variants
Shared
Dedicated
.Core network infrastructure provided on dedicated DWDM links
.Target customers are those CP.s with C.380k+ EU.s, with high concentration at core nodes
.Available with 1Gbit/s or 10Gbit/s host links
.Core network infrastructure aggregated to benefit multiple CP.s
.Transport provided over MPLS core network
.Cost of AP.s, EP.s & MSILs shared between CP.s
.Target customers small to medium CP.s with less than C.380k EU.s
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Customer Drivers for WBMC
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WBMC NEW commercials      
WBMC Shared
Operative Date
Connection
(Exc. VAT
Rental
(Exc. VAT)

End User Access
Standard / Elevated
Band a/b/c
01.05.2008
As per WBC
End User Access
Standard / Elevated
Band a/b/c

Modification, cancellation, migration, cessation and abortive prices of End User Access
01.05.2008
As per WBC
Modification, cancellation, migration, cessation and abortive prices of End User Access

WBMC fixed charge per End User (for WBC and IPstream Connect EU access).
01.07.2008
￡0.00
￡0.35 per EU per month

WBMC Best Efforts Contracted bandwidth charge. (WBC only)
01.05.2008
￡0.00
￡87.89 per Mbit/s per month

WBMC (WBC) for bandwidth utilised above a 5% threshold on the contracted bandwidth ordered by CP
01.04.2009
￡0.00
￡158.55 per Mbit/s per month

WBMC Contracted bandwidth charge (IPSC)
01.04.2009
￡0.00
￡131.20 per Mbit/s per month

WBMC (IPsC) for bandwidth utilised above a 5% threshold on the contracted bandwidth ordered by CP
01.04.2009
￡0.00
￡188.55 per Mbit/s per month

Host Link
Operative Date
Connection
(Exc. VAT)
Annual Rental
(Exc. VAT)
Annual Rental Per meter (Ex VAT)

1 G Host Link (Resilient)
01.05.2008
￡7,990.00
￡24,760.00
￡0.90

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Worked example
Customer x has;.IPS 5,000 EU
.spread across Max, Home & Office
.using 1 x 155Mb L2TP central
.paying ￡68.5k per monthWBMC shared;  
.1500 WBC EU (30%)
.3500 IPsC EU (70%) of EU
.130Mb of contracted bandwidth (60Mb WBC, 70Mb IPsC)
.1Gb resilient Host Link
.￡64.3K per month ~6% saving
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Portfolio Summary
.WBC is BTW’s 21CN broadband service that offers ADSL2+ capability with enhanced QoS features
.IPSC is a new 20CN product that supports CPs in the transition to 21CN by allowing CPs to take advantage of 21CN backhaul whilst continuing to support their EUs on 20CN
.WBMC is a managed ‘end-to-end’ solution that will aggregate both 21CN (WBC) and 20CN (IPSC) EU products.
.CPs can choose to buy WBC and/or IPSC directly or consume these products through WBMC
.WBC/WBMC will consume future broadband access tails e.g. FTTC and FTTP
.Wholesale Content Connect (WCC) is an additional feature that will be available via WBC and IPSC that will reduce the cost of delivering videos by hosting them closer to the EU, inside the BTW network.
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BTW Broadband Portfolio
IPstream & Centrals planning to announce withdrawal of IPstream
Datastream.planned withdrawal in line with recent consultation
Current Portfolio
Future  Portfolio
WBC
IPstream Connect (20C)
.A single or multiple MSIL serves all input products per AP.
WBMC .Utilising
Next Generation Centrals
WBMC .a single e2e solution that is intended to support all 3 input options and their functionality
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Migration Options
Andy MaddocksProduct ManagerBTW
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EU Migrations .IPS > IPSC (directly or via WBMC)
.No billing or product changes
.No new systems interface required to support EUs .continue to use e.Co Broadband portal/XML
.Possible change of interface technology for 2Mb to 155Mb Central customers (WBMC shared presentation is PPP in L2TP over IP over GigE)
.Manage the migration of end users from Centrals to IPSC backhaul
.‘Soft’ migration (free of charge)
.Migrate on a ‘per domain name’ basis
.Migrate EUs as they log off/log on
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EU Migrations .IPS(C) > WBC (directly or via WBMC)
.Change from c20 > c21 systems & interfaces (e.Co Plus)
.Product & systems training for staff
.Done as a “Bulk Migration” (free of charge)
.8 week advanced migration forecast required
.Migrations limited by overall requirement and available resource
.Up to 96 lines per site per day
.Singleton migration option also available
.Charged as per BAU process
.Minimal downtime for EU .Provide & Cease
.New Profile options available for EUs
.Can be ADSL1, to keep EU experience (speed) the same
.Can be built as ADSL2 “Transit” profile, to ease an “up-sell” later (ADSL2+ speed may be visible to EU)
.Can be built immediately as ADSL2 profile
.Not all existing CPE will be ADSL2+ compatible
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CPE Testing to date .ADSL2+
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CPE Test Criteria
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Enhanced Dynamic Line Management (DLM)
Phil EverettBT Design
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Dynamic Line Management
ADSL1
ADSL2+
Benefit
Upstream problems managed through Downstream DLM changes
Separate Upstream and Downstream  DLM changes
No loss in downstream speeds for upstream problems
7 .8 day Convergence times (Stabilising)
Expected to be within 5 days
.Service stable earlier
.Improved end user experience
Only one depth of interleaving available before have to use noise margin to stabilise lines
Two interleaving depths and other parameters for upstream and downstream before noise margin used
.Improved opportunity to maintain line rates
.Improved end user experience
Single interleaving level
“Low” 2 to 4 times better noise protection than ADSL1“High” up to 8 times better
.Improved stability
.Improved end user experience
.Improve ELF & In-Life fault rates
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Dynamic Line Management
ADSL1
ADSL2+
Benefit
HOT TIP!Maximise the benefits of ADSL2+ DLM -select the AUTO Interleaving Option
Single/short duration synch periods unrecognised
Total of 900 seconds uptime in any 24 hour period
Allows little usage to register as a ADSL2+ user
Inability to distinguish user initiated synchs
Differentiates between user forced and line condition initiated synch events
.Prevents false synch event counting towards “flapper” behaviour
Interleaving cannot be removed by DLM when noise improves
Where “Auto” is selected & interleaving is applied, can be auto-removed if noise improves
.Improved product perception
.Improved end user experience
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WBC Product/Profile Options
Steve EcclesProduct ManagerBTW
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IPstream EUA Bandwidth Options
Product
Downstream Speed
Upstream Speed

Home 500
Up to 576kb
Rate adaptive .minimum 64kb up to 288kb

Home 1000
Up to 1152kb
Up to 288kb

Home 2000
Up to 2272kb
Up to 288kb

Office 500
Up to 576kb
Rate adaptive .minimum 64kb up to 288kb

Office 1000
Up to 1152kb
Up to 288kb

Office 2000
Up to 2272kb
Up to 288kb

IPstream Max
Rate adaptive .288kb up to 8Mb
Rate adaptive .64kb up to 448kb

IPstream Max Premium
Rate adaptive .288kb up to 8Mb
Rate adaptive .64kb up to 832kb

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WBC EUA Bandwidth Options
Product
Downstream Speed
Upstream Speed

ADSL1
Rate adaptive .288kb up to 8Mb
Rate adaptive .64kb up to 448kb

ADSL1
Rate adaptive .288kb up to 8Mb
Rate adaptive .‘uncapped’ (minimum 64kb)

ADSL2+ ‘Transit’
Rate adaptive .288kb up to 24Mb (capped at BRAS to 8Mb throughput)
Rate adaptive .64kb up to 448kb

ADSL2+ ‘Transit’
Rate adaptive .288kb up to 24Mb (capped at BRAS to 8Mb throughput)
Rate adaptive .‘uncapped’ (minimum 64kb)

ADSL2+ 8Mb
Rate adaptive .288kb up to 8Mb (capped at MSAN)
Rate adaptive .64kb up to 448kb

ADSL2+ 8Mb
Rate adaptive .288kb up to 8Mb (capped at MSAN)
Rate adaptive .‘uncapped’ (minimum 64kb)

ADSL2+
Rate adaptive .288kb up to 24Mb
Rate adaptive .64kb up to 448kb

ADSL2+
Rate adaptive .288kb up to 24Mb
Rate adaptive .‘uncapped’ (minimum 64kb up to 1280kb)

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Product Options
Choose the technology type
ADSL1
ADSL2+
Choose the product
Up to 8M
Up to 8M
Transit
Up to 24M
Choose the upstream option
Uncapped
Up to 448K
Choose the Stability Option
Stable
Standard
Super-Stable
Choose the Throughput Option
Elevated
Standard
On
Off
Auto
Choose the Interleaving Option
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Throughput
PICK AN EUATHROUGPUT OPTION i.e:.Standard
.Elevated
STANDARD = minimum of 2Mb for 90% of the time during the 3 hour busy period
ELEVATED = minimum of 3Mb for 90% of the time during the 3 hour busy period
SAME AS IPSTREAM HOME/MAX
SAME AS IPSTREAM OFFICE/ MAX PREMIUM
Underpinned by same capacity management approach as on IPstream
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Normal EU Line on WBC ADSL2+
INTELLIGENT PROFILE SELECTION(Based on Historical  or line data)
PICK A EUAPRODUCT i.e.:.ADSL1
.ADSL2+ TRANSIT
.ADSL2+ (8/24M)
PICK A STABILITY OPTION:.STANDARD
.STABLE
.SUPER STABLE
SELECT INTERLEAVING PROFILEON/OFF/AUTO
Dynamic Line Management takes action based on the Red ILQ state
CPs selections
Jeopardy Management of risks
Select Standard.which allows the line to train up to the highest rate it can support with no additional reduction for stability (other than by DLM)
If DLM acts its actions  may reduce line rate to stabilise the connection. With Standard and Stable options it will not act if doing so will take the line  below the FTR.
MSR/FTR is set at the end of the Stabilisation Period
Indicative Line Quality (ILQ): gives a status based on line stability (retrains etc)
Select ADSL2+ Transitto preview  a line’s achievable line rates in the Availability Checker.
ADSL2+ products benefit from more responsive DLM
SET-UP
ONGOING
Select Interleaving option dependent on what EU uses service for e.g. VoIP/Gaming (OFF)AUTO is recommended
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EU Line requiring increased stability on WBC ADSL2+
CPs selections
Jeopardy Management of risks
Select Stableor Super Stable*for increased stability. DLM acts to tighter parameters to stabilise the line with these optionsImpact -reduces line speeds by 800K (Stable) and 1600K (Super Stable) from Standard
MSR/FTR is set at the end of the Stabilisation Period
Select ADSL2+ Transit.which allows the line to train up to the highest it can support on the profile but caps throughout at 8meg
SET-UP
ONGOING
INTELLIGENT PROFILE SELECTION
(Based on Historical or  line data)
PICK A EUAPRODUCT i.e.:.ADSL1
.ADSL2+ TRANSIT
.ADSL2+ (8/24M)
PICK A STABILITY OPTION:.STANDARD
.STABLE
.SUPER STABLE*
SELECT INTERLEAVING PROFILEON/OFF/AUTO
Select Interleaving option dependent on what EU uses service for e.g. VoIP/Gaming (OFF)AUTO allows the best use of DLM
Dynamic Line Management takes action based on ILQ
When there is a problem, DLM may sacrifice speed to retain the connection but not below the FTR, it considers Stability profile and interleaving options in making these decisions
Indicative Line Quality (ILQ): gives a status based on line stability (retrains etc)
*when used on ADSL2+ FTR may be breached to try and achieve stability
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Normal EU Line on WBC ADSL1
CPs selections
Jeopardy Management of risks
WBC Stability Options are named differently to those on 20C but are equivalent to Service Options 1, 2 and 3.
Select Standardunless you require increased stability.
MSR/FTR is set at the end of the Stabilisation Period
Select ADSL1 to move across with the same experience as you enjoy today.Line Rates are subject to a maximum of 8128kbit/s
SET-UP
ONGOING
INTELLIGENT PROFILE SELECTION
(Based on Historical  line data)
PICK A EUAPRODUCT i.e.:.ADSL1
.ADSL2+ TRANSIT
.ADSL2+
PICK A STABILITY OPTION:.STANDARD
.STABLE
.SUPER STABLE
SELECT INTERLEAVING PROFILEON/OFF/AUTO
Select Interleaving option dependent on what EU uses service for e.g. VoIP/Gaming (OFF)AUTO suits most other scenariosON .for stability at any cost
Dynamic Line Management takes action based on ILQ
When there is a problem, DLM may sacrifice speed to retain the connection even if this takes it below the FTR, it considers Stability profile and interleaving options in making these decisions
Indicative Line Quality (ILQ): gives a status based on line stability (retrains etc)
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Consultation Update
Felicity Webster
Consult21
BTW
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STOP SELL (centrals)
WITHDRAW (centrals)
STOP SELL (EUA)
WITHDRAW (EUA)
Consultation being planned
Consultation complete
Dependencies for each withdrawal step
Key:
Alternative 21CN product availability + ?(Subject to consultation)
Availability of:1.1Gb WBMC Host Link
2.100Mb or equivalent WBMC Host Link
3.Consumption of IPSC via WBMC+ 6 months
12 months
IPstream .Consultation to Date
Alternative 21CN product availability + ?(Subject to consultation)
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Example Timeline for withdrawal of Centrals
6 mths
12 mths
Launch of 100Mb Host Links or equivalent product
Launch of 1Gb Host Links
Consumption of IPSC via WBMC
Withdrawal of new supply of Centrals
Migration from and full withdrawal of Centrals
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IPstream EUA Withdrawal Consultation
Steve EcclesProduct ManagerBTW
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Consultation Overview
.‘Pre.consultation’ today
.Follows on from phase 1 .Centrals Withdrawal
.Looking to achieve a practical solution
.Welcome your feedback to the proposed solution
.We will supply a feature comparison document
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Proposals .Subject to final approval
.IPstream product to be withdrawn on a per exchange basis
.Exchanges will be notified individually or in groups
.Each notification will be issued 18 months in advance of full IPstream withdrawal at the specified sites
.All EUs will need to have been moved to alternative 21CN products by the end of the 18 month period
.By exception, BTW may provide a longer period of withdrawal where the aggregated volume of EUs may require additional resources/timeframes (will be specified in the notification).
.EU new supply will always cease at the specified sites 6 months after each exchange withdrawal notification is issued
.No Exchange withdrawal notifications will be issued in the next 12 months
.BT will be regularly updating this statement
.Provides CPs with a minimum 30 month visibility from today
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Proposed Framework
Withdraw from sale at exchange locations included in notification
Exchange withdrawal notification  -individually or in groups
6 months
12 months
Withdraw of service at exchange locations included in notification
Withdraw from sale at exchange locations included in notification
Exchange withdrawal notification  -individually or in groups
6 months
18 months**
Withdraw of service at exchange locations included in notification
This process will operate on a continuous basis until service has been withdrawn from all exchanges
Withdraw from sale at exchange locations included in notification
Exchange withdrawal notification  -individually or in groups
6 months
12 months
Withdraw of service at exchange locations included in notification
**BT’s analysis shows that if all CPs wait until withdrawal notification before starting their migrations, then some exchanges that have large aggregated volumes of EUs may require longer than 12 months for full migration
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Proposed Consultation Timescales
May
June
July
Initial Workshop
Issue Feature Mapping Matrix
Publish Formal CONDOC
CONDOC Closure
Bi-laterals and Workshops