The 21st Century
Network
Standards
Requirements
Keith Dickerson
Head of Standards – BT Group
Workshop on Next Generation Networks: What, When and How?
Agenda
• Why a 21st Century Network?
• What does a 21st Century Network look
like?
• What new Standards are required?
• What should ITU do?
Workshop on "Next Generation Networks: What, When and How?"
Why a 21st Century Network?
• Make it easier to create new services
– Faster
– More people can create
• Make it easier to buy and use services
– Enable customers
• Make it simpler to deliver and maintain
service
– Process automation
• 30-40% cost reduction
Workshop on "Next Generation Networks: What, When and How?"
What does it mean?
• New services
–
–
–
–
Open APIs and applications platforms
Mobile enabled
Re-usable components/capabilities
Build on broadband
• Cost reduction
– Not enough to do efficiencies and automation
– Radical network convergence to fewer
networks and systems carrying more services
– Converge in from the edge
Workshop on "Next Generation Networks: What, When and How?"
21st Century Services Vision
“A world where all our customers feel
empowered
and are treated as individuals”
Workshop on "Next Generation Networks: What, When and How?"
New Services (1)
Video Downloads
Multimedia calling (SIP)
Broadcast TV
• VoIP, video,Instant
messaging, photos,
movies,sharing, games
Gaming
•
•
•
•
•
•
•
•
4.7Gbyte DVD can be stored on CD
Could be streamed (nrt) in ~3 hours
Microsoft XBox will become a STB
Digital Rights Management?
Wholesale Broadcast TV distribution
service
Only available to BB Customers
Teleworking
Biplay service (or tri-play)
Services integrated by CPE (or by SP)
Security
•
•
•
Low latency
downloading
QOS management
•
•
•
•
Virus scanning
Firewalls
Back-up
Encryption
Workshop on "Next Generation Networks: What, When and How?"
•
•
•
Remote LAN access
Security / encryption
Roaming
New Services (2)
• Broadband
– Move from selling best effort pipe to assured services charged per
session/time/
– Provide one way assurance (VOD, Turbo button etc) but also twoway multimedia calling
– Allow anyone to create services
• Business
– Provide ICT service, managed desktop, storage, hosted
applications… Build on IPVPN to have any access, including work
at home, cellular and WLAN
• Future voice
– Derived/replacement where needed
– Multi-media in both consumer and business
• Mobility
– Support mobile terminals
– Build on IM/mobile presentation to provide roaming over any
access
– Personal and terminal mobility
Workshop on "Next Generation Networks: What, When and How?"
Cost Reduction
• Efficiencies and automation not enough
– need to enable customers and partners in
the service management processes
• Have to include future of PSTN (voice)
• Radical steps required
– need closure of legacy networks and
systems
• More important to converge in access and
backhaul than in core
– because opex and capex centred there
Workshop on "Next Generation Networks: What, When and How?"
21st Century Network Vision
Logical
Nodes
Today
~80,000
~100,000
PCPs
in the
Access
Network
Remote
Concs,
DLAMS
and Data
Muxes
~1000 +
~170 Core
Voice Switches
and Data Cross
Connects
Switches
(DMSU / NGS)
Data
Centre
International
Networks
Internet
Peering
End
Customer
Logical
Nodes
Begin
Fibre
to the
PCP
~30,000
~100
~10
MultiService
Access
Devices
Aggregation
Metro
Routers
Core
Routers
Service Edge
Core
Workshop on "Next Generation Networks: What, When and How?"
Data
Centre
Today's network has many
access aggregation devices
Network Infrastructure
Service Management
~6000 exchange sites
For 5 million
Broadband and
23 million
PSTN customers
40 m pairs
MDF
23m
pairs
RCU
~30,000
boxes
PDH/PSTN
Voice
5m
pairs
DSLAMs
Broadband
5m
pairs
CWSS
DPCN..
500,000
circuits
TOTAL ~74 m pairs : 400,000 fibres
MSIP/MSH
~25,000
boxes
Broad Band
Service Mgt
PDH/MESH/MSH
Multiple Copper
Data Service Mgt
MESH/MSH
Multiple Fibre
Data Service Mgt
~32,000
boxes
Fibre
400,000
fibres
Mid Band
Service Mgt
~9,000
boxes
Copper
Data
Services
Narrow Band
Service Mgt
DWSS
ASDH…
TOTAL ~100,000 boxes
Multiple service management organisations and systems
Workshop on "Next Generation Networks: What, When and How?"
6+ service Mgt
Organisations
The future will be based on a
multi-service access node
Network Infrastructure
For 5 million Broadband
and 23 million PSTN customers
40m pairs
Up to 23m pairs
Voice or
Broadband
MDF
Integrated test
and operations
Data
Services
500,000
circuits
400,000
fibres
~ 63m pairs : 400,00 fibres
Up to 15% reduction!
Copper
Fibre
Service Management
M
Multi-Service
U Access Aggregator
L
T
Transmission
I
e.g.MSH
M
E
D
I
A
~30,000 boxes
Up to 70% reduction!
Single service
management organisation
Fewer devices, simpler service management
Workshop on "Next Generation Networks: What, When and How?"
Multi Band
Service
Management
Today's service network edge is made up
of many dedicated switches and routers
Network Infrastructure
PSTN
Narrow Band
Service Mgt
DLE
KiloStream
DPCN
ATM and FR
MSIP
PDH
Webport
Private Cct
Service Mgt
PDH
MESH and MSH
Fixed
Internet
Dial
Internet
L2 Data Services
Service Mgt
IPClear
EtherStream
Ethernet
MetroStream
BTnet
Service Management
MSH
IPenabled
Fusion IPVPN
Equip
UBB
MESH
IPVPN
Data Service Mgt
MSH and UBB
Metro
Surfport
MSH and UBB
Internet
Service Mgt
SDH
Service Mgt
6+ service management
organisations
Multiple service management organisations and systems
Workshop on "Next Generation Networks: What, When and How?"
Target 21CN metro node
- multi-service design
Network Infrastructure
Voice
KiloStream
CellStream
FrameStream
EtherStream
MetroStream
BTnet
Rich Media Services
To/From
Aggregation
Nodes
Webport
TDM
ATM/FR
Ethernet
IP
IP VPN
M
U
L
T
I
M
E
D
I
A
Service Management
Multi Service
Edge
Multi-Service
Management
Outer core
SDH
UBB
Dial
Internet
Fewer devices, simpler service management
Workshop on "Next Generation Networks: What, When and How?"
Single service
management
organisation
Today's multiple core networks mirror
the individual service networks
Network Infrastructure
Service Management
IP Core
Router
IP Service
Management
WDM
UBB
UBB
Service Mgt
ATM Core
Switch
UBB
MSH and UBB
WDM
Service Mgt
WDM
PSTN DMSU
Switch
PDH
Service Mgt
PDH
PSTN DISC
Switch
MESH
PSTN NGN
Switch
MSH
4+ Service Mgt
organisations
Multiple service management organisation and systems
Workshop on "Next Generation Networks: What, When and How?"
The target is for a multi-service core,
with high capacity optical cross connects
Network Infrastructure
Service Management
MPLS
Core
WDM
WDM
Multi-Service
Management
Single Service
Management
Organisation
Multi-service principle - fewer devices,
simpler service management, lower cost to build and operate
Workshop on "Next Generation Networks: What, When and How?"
Intelligent applications – today
IN
IN
IN
IN
IN
Today’s intelligence is built into each PSTN switch
- limited central intelligence in the IP network
Workshop on "Next Generation Networks: What, When and How?"
Provide a common Intelligence Layer
Presence
Control
Monitor
Accounting
Common Data Model – LDAP interface
Interface Protocols – INAP, MGCP, SNMP, CORBA, GMPLS, etc
Transmission Layer
PSTN
and
new generation
PSTN
Data
networks
Internet
backbone
3rd party
networks
Intelligent Service Layer – controlling IP and PSTN
- and allowing controlled 3rd party access
Workshop on "Next Generation Networks: What, When and How?"
Mediation and Billing
Authentication
Authorisation
Intelligence Layer
Application layer – Web Services .Net J2EE
Intelligence Layer
Flexible user interface Web, DTMF,Voice
Intelligence layer
Home Gateway
M&C API
IF-6
EUD-HN1
Interface
Diag API
Customer Environment
IF-5
Service
Provider
IF-3
CG-HN1
Interface
Content
Provider
Network
Provider
Access
Interface
NT
IF-2
End User
device
IF-4
Home
Network 1
IF-1
Customer
Gateway
Management & Control API
IF-10
IF-9
IF-8
M&C API
Diag API
Workshop on "Next Generation Networks: What, When and How?"
EUD-HNn
Interface
Diagnostics API
CG-HNn
Interface
IF-7
Home
Network n
End User
device
Mobility Architecture
Signaling
Traffic
OLO
Service
Layer
Application
Layer
Non-SIM
HSS
Service
Layer
HSS
HSS
MGCF
VOIP or MM Services
Telephony
P-CSCF
I-CSCF
S-CSCF
PSTN
MGW
T-SGW
UE
WLAN
AP
WLAN
NC
AAA
IMS
WLAN
DSLAM
FA
RAS
Gateway
Fixed (e.g.
Broadband)
Access
IP v6
Capable
Core Network
+ Mobile IP v6
VOIP
Gateway
PS-CN
Workshop on "Next Generation Networks: What, When and How?"
Internet
Services
PUBLIC
IP NETWORK
OSS Architecture
Number &
Naming
Management
ProcessSpecific
Function
Process
Manager
Retail
Billing
Wholesale
Billing
Logistics
Fraud
Management
GIS
Usage
Mediation
Interconnect
Billing
CRM
Product
Management
Network
Management
Middleware Functional Layer
Order
Management
Payment
Gateway
Pre-pay
Management
Business
Management
Cellular I/W
Gateway
Trouble
Management
B2B
Gateway
Personalisation
Management
Inventory
Management
3rd Party
Management
Key:
User
Portal
Provision
Mediation
Credit/Address
Check
ABC
Low OSS Impact
DEF
Medium OSS Impact
GHI
High OSS Impact
Workshop on "Next Generation Networks: What, When and How?"
AAA
Application
Architecture
Service
U1
Application layer
External
registry
Users
Provider
R1
Applications
S1
Application environments
A1
Service
Provider
Framework
G1
S2
Capability
Exposure
Functions
G2
Generic
Service
Components
Workshop on "Next Generation Networks: What, When and How?"
Example Architecture Implementation
Publish
Application layer
Service
App
App
App
Provider
App App
Service
provider portal
Service provider
framework
App App
Web
Sphere
.Net J2EE
.net
Open IF
J2EE
Web
Sphere
App
Env
App
Open IF
SIP Servlets with
framework
Liberty with
framework
Billing
State
Call history
Terminal
User Data
Location
Profile
Presence
Network Caps
Terminal Caps
QoS
Session
component
Common components
Packet Switched
Networks
Infrastructure layer
Web
Web App
Serv Env
Open IF
ParlayX with
framework
Messaging
Service Domain
Session
component
J2SE
Open IF
Parlay
App
App App
perl
Circuit Switched
Networks
Workshop on "Next Generation Networks: What, When and How?"
Highest Priority 21CN Standards
Requirements
• 3GPP Architecture extended to WLAN and fixed
Broadband access
• QoS
– Diffserv doesn’t work
– MPLS (Session) based QoS instead
• Session Control
– extensions to SIP with full multimedia capability
• Manageability
– Commoditised componentised OSS
• Security
– Authentication across networks / operators
Workshop on "Next Generation Networks: What, When and How?"
ITU is important to NGN for:
•
•
•
•
•
•
Access Networks – SG15
Core Networks – SG13
Optical Networking – SG15
Spectrum – ITU-R
Numbering & Addressing – SG2
Signalling for QoS across multiple
networks – SG11
• QoS Architecture in SG16?
Workshop on "Next Generation Networks: What, When and How?"
Important Fora for NGN
• 3GPP – Mobility Architecture
• IETF – IPv6, SIP extensions, MPLS
• Open Mobile Alliance (OMA) – (Mobile)
Applications, DRM
• Metro Ethernet Forum (MEF) – Gigabit Ethernet
• IEEE 802.11x - WLAN
• W3C – Privacy, Web Services
• Liberty Alliance – Single Sign On
Workshop on "Next Generation Networks: What, When and How?"
Conclusions
• 21st Century Network will only succeed
based on standardised components
• ITU must work with fora and consortia to
achieve NGN
• ITU-T Forums Summit (IFS) 24/25 July in
San Francisco will lead way
Workshop on "Next Generation Networks: What, When and How?"