Session 7
Highlights & Conclusions
Alain LE ROUX
France Telecom
5/31/2016
Workshop on NGN, Geneva, 9-10 July 2003
Session 7 – NGN oriented solutions and plans
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Presentation 1 “NGN complementing the Internet for converged
networks” (Cisco Systems)
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NGN based on IP related or friendly Transport technologies
to deliver Carrier class (i.e. reliable & secure) and Business class Internet
services
Presentation 2 “The 21st Century Network - Standards requirements”
(BT)
More services over a converged network with fewer network elements
 Several critical standards areas and some highest priority standards
requirements identified
 Presentation 3 “Cable networks on the NGN road: IPCablecom and
PacketCableTM Technologies and Development status ” (CableLabs &
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ECCA)
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5/31/2016
Cable IP-based QoS enabled Multimedia service platform (XoIP)
VoIP trials ongoing and commercial rollout planned in near future
Workshop on NGN, Geneva, 9-10 July 2003
Session Highlights
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NGN service rich packet-based modular platform, access agnostic
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Service convergence over IP, end-to-end (IP/MPLS) packet intelligence and
deterministic traffic handling
With open standard interfaces between service control and Platforms
Interworking with legacy networks/services and Internet applications
Integrated OSS and Web-based management & provisioning
Interconnections between Network domains/carriers for IP based
services are becoming important
Radical network convergence to fewer networks and systems
carrying more services, converging in from the edge
Cable Networks towards NGN: PacketCable 1.x and PacketCable
Multimedia specifications (all issued or about to)
Workshop on NGN, Geneva, 9-10 July 2003
Session Issues
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NGN business model requires rethinking legacy paradigms
Need to ensure VoIP/VoATM/PSTN interworking
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SIP-BIC-ISUP interworking is currently a high priority. BICC
adopted in UMTS UTRAN, but which role in fixed networks?
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More important to converge in access and backhaul (where
capex & opex are most significant) than in core
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Fewer network elements (supporting more capabilities), all with
distributed intelligence, security, VPN & OSS functionality
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Cable Networks: access specific or fully network specific systems?
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Is that compatible with distributed and separated transport-sessionservice control ?
Why does SIP-based Call Network Signalling (CNS) need to be specific?
Which interfaces could be common to xDSL/Fiber NGN access ?
Workshop on NGN, Geneva, 9-10 July 2003
Conclusions & Recommendations
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Consensus on NGN being IP-based Multimedia enabled. Many (too
many?) specifications/Standards emerging and products appearing
on the market for access-backhaul-core segments:
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Recommendation : to avoid multiple different architectures and
interface solutions for similar requirements (e.g. mobility mgnt,
session control, resource & QoS control):
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But do they fulfil Operators/Service Providers requirements?
How to ensure that all the pieces of the puzzle fit together and interoperate?
What about building NGN over 3G architecture & interfaces with necessary
extensions/adaptations to accommodate wireline and fixed wireless access ?
Analyse system architectures and identify common (edge, core) requirements
Identify extensions to existing specs required for xDSL & fiber NGN access
Agree on the standards critical areas (with Framework harmonisation with
Mobile & Cable: e.g. for Architecture, Signalling, Security, QoS, OSS
Identify evolution scenarios and steps, and prioritise standards requirements
Workshop on NGN, Geneva, 9-10 July 2003