BTs Plans for its NGN

1
BTs Plans for its NGN

• EU Open Workshop on NGN Policy and Regulatory
  Issues
• 22 June 2005
• Ittai Hershman
• Director, 21CN Commercial Development
• BT Wholesale
• Ittai.Hershman_at_BT.com

2
CAUTIONARY STATEMENT

• The material in this presentation represents
  current general technical thinking on how a
  converged IP network could be implemented. It
  does not necessarily represent BT's plans. The
  details of BT's 21st century network are still in
  the process of development and the subject of
  consultation.

3
THE CHANGINGLANDSCAPE

• Convergence is gaining momentum
• Convergence needs an underlying infrastructure to
  deliver and support it
• End users want more choice, flexibility and
  control
• Simplicity is key

4
OUR CURRENT NETWORK
PSTN
PSTN
Copper
Leased lines
KStream
ATM
DSL
PDH Access
IP
Fibre
SDH -VC-12
PDHAccess
SDH - VC-4
Access SDH
PDH
End User
300 sites
100 sites
5.5k sites
2k sites
15 sites
1k sites
5
21CN - OUR SIMPLIFIED NETWORK
Muilti-service access
Converged Core
Class 5 Call Server
Copper
WWW
DSL
IP-MPLS-WDM
Fibre
Aggregation
ISP
Content
End User
5.5k sites
130 sites
For discussion purposes.No implementation
assurances
6
INDUSTRY CONSULTATION

• Consult21 launched Summer 2004
• Director recruited from industry
• 8 Working Groups, comprising
• Product Migration from Legacy to 21CN(E.g.
  Legacy Interconnect, PPCs, Broadband)
• 21CN Migration Management
• Next Generation Solutions( E.g. NGN
  Interconnect, Network Capabilities)
• Each WG has BT and Industry Co-Chairs
• Industry Steering Board (Ofcom monitors)
• All proceedings published on the Internet

7
NGN INTERCONNECT

• Converged Point of Handover
• Multi-service pipe between two operators
• Architecture (i.e. standards) to be agreed at
  NICC
• Service Specific Conveyance
• Multiple services will be conveyed across a PoH
• Some will be price controlled (e.g. PSTN), others
  wont
• Some will require service specific network
  elements
• Some services can be defined today, others cant

For discussion purposes.No implementation
assurances
8
HOW DEEP SHOULD PoH BE?

• BT proposed PoH at 130 Metro node sites
• Some Operators want deeper PoH, because
• They have existing fibre assets that may be
  stranded
• They want to leverage LLU investments
• They want to intermediate the wholesale market
• They believe conveyance will be cheaper
• Ofcom wants deeper PoH, because
• Policy of promoting infrastructure build
• Greater competition for backhaul

For discussion purposes.No implementation
assurances
9
POTENTIAL HANDOVER POINTS
For discussion purposes.No implementation
assurances
10
SERVICE CONVEYANCE PROTOCOLS
C7 PSTN REPLICATION
MULTIMEDIA
ATM
NGN PPC
Note ATM and Circuit Emulation over Ethernet
subject to further standards work.
For discussion purposes.No implementation
assurances
11
STANDARDS CHALLENGES

• Many fora developing open standards
• BT committed to NICC/TSG process
• Sourcing standards for consideration from
• IETF, TISPAN, Metro Ethernet Forum, 3GPP, etc.
• But, localised variants cost time and money
• Balance between backward compatibilityand the
  burden of forever carrying the past

For discussion purposes.No implementation
assurances
12
REGULATORY FRAMEWORK

• NGNs Are Driven by Cost Savings
• No one can build it and they will come on
  revenue bet
• Investment requires savings flow back to
  shareholders
• Regulators face a difficult challenge
• NGNs are disruptive to traditional boundaries
• NGNs challenge past regulatory assumptions(e.g.
  thin disperse vs. fat fewer interconnect)
• Regulation needs to focus on the future, not the
  past
• UK embarking on a new path forward equivalence

13
BTs FUTURE TECHNICAL ESTATE
14
21CN SUMMARY

• 21CN is the enabling infrastructure for growth
  at BT and for its customers
• The most ambitious business transformation
  programme in communications worldwide
• Represents a major investment by BT