International Telecommunication Union Promising services to boost NGN Helmut Schink VP Network Standards, Siemens ICN Workshop on Next Generation Networks: What, When & How? Geneva, 9 -10 July 2003 Page -
Evolution of CPE devices ITU-T Support of different service quality Mobility & Security Dynamic Delivery Of New Services Remotely Managed & Upgradable Internet Enabled devices Connectivity to Multiple devices on Home Networkin g Within the home Broadband Connectivity to One Device Modem 1999 9 -10 July 2003 Router 2000 2001 Service gateways 2002 2003 Workshop on Next Generation Networks: What, When & How? 2
Intelligent Services Gateway ITU-T Interface to Application Domains Home Gateway External BB network Wireless Connectivity Home Security Home Management Communications, Information, Work-At-Home, Education 9 -10 July 2003 Entertainment Workshop on Next Generation Networks: What, When & How? 3
Multiservice access The DSLAM grows up! ITU-T Residential Splitter / Modem Advanced residential – SME Home gateway WLAN BS x. DSL POTS ISDN-BA ISDN-PRA V 5. x E 1 / LL Phase 1: Separate backbones for voice and data Initial DSL roll-out Multi-service access combines voice and data access capabilities in a single backbone Bundle DSL with a new POTS proposition and get rid of legacy features!!! Phase 2: Packed-based backbone for voice and data Evolution and gradual DLE replacement Media Gateway Controller Signaling Gateway Call Feature Server ice Vo P/ MGC 8 H. 24 TDM network Dat a Voic ea Dat nd a IP network 9 -10 July 2003 Any DSLAM Qo. S IP network Workshop on Next Generation Networks: What, When & How? 4
PSTN evolution ITU-T o The classical PSTN market is stagnating o Obsolescence is not key, but lack of flexibility within current PSTN network is a limiting factor o Main threat for PSTN operators: o Shift of telephony services to other infrastructure providers o Main opportunity for PSTN operators: Migration of existing infrastructure towards broadband o Voice drives the revenues of the telcos, but focus for investment is NGN o Media gateways, call feature servers, and signaling gateways are the key building blocks of a multi-service architecture 9 -10 July 2003 Workshop on Next Generation Networks: What, When & How? 5
The SIP challenge Who's selling the services? ITU-T Security, Authentication Presence IM MM PC Session Control Layer LAN DSL Modem SIP Proxy Server SIP Applications SIP Proxy Server 3 rd party applications SIP Call data DSL Modem IP IP IP PER IP Network Layer SIP PER IP IP 9 -10 July 2003 MM PC My. Service Connectivity SIP Phone DSL Modem Workshop on Next Generation Networks: What, When & How? 6
The SIP Challenge: Ownership of user data ITU-T My. Service ISP MM PC DSL Modem 3 rd party applications SIP Proxy Server LAN 3 rd party applications DSL Modem User Database, Security, SIP Authen. Proxy tication Server SIP-Phone UTRAN UMTS 9 -10 July 2003 PER Presence IM Network Layer Applications PER Connectivity Workshop on Next Generation Networks: What, When & How? 7
towards value-added services ITU-T · Value-added services will become the main differentiator · Most added value services are based on voice, data, and mobility convergence and require support beyond best effort Services Business vision IP networking Transport service 9 -10 July 2003 Customer confidence Security Customer service Qo. S Availability Reliability Mission critical business applications Business specific applications e-Commerce Web hosting IP VPN Key requirements Business leadership (innovations) Differentiation: Business opportunity Commodities Operational leadership Workshop on Next Generation Networks: What, When & How? 8
The new service architecture ITU-T The service architecture delivers: · Service models focusing on the experience, not the connection · Business models that are flexible and easily adaptable - Different services for different markets with different billing - Simultaneously delivery of: - Low volume / high margin services - High volume / lower margin services · Drive model from bits to experiences · Product creation and definition for fast market trial Service Models Assured experience VOIP VPN GAMING Better than best effort INET Best effort 9 -10 July 2003 Workshop on Next Generation Networks: What, When & How? 9
The New Broadband Service Control Architecture ITU-T Service Intelligence Domain · The "IN" of the data network · Virtualization of the service - Customer-centric view · Manage services, not bits · Real time changes to the Network / service management connection between - Customer and content, or - Customer and customer Policy management (service control) Service Delivery Domain Access On the Move PSTN Home Broadband home, SME 9 -10 July 2003 IP Core WLAN BS VPN POTS / ISDN ATM / Ethernet x. DSL HGW Edge Router (MPLS) Core Content domain · Delivers scalability and reach - "Any Access" - DSL & WLAN · Service Resiliency · Carrier-, not enterprise-focused · Performance for all traffic types · Virtualization of the network · Meditation of legacy systems · Ease of management Workshop on Next Generation Networks: What, When & How? 10
Example: The Turbo Mode browser talks BRAS ITU-T o • Opens an Ad Window • Demands Higher Speed from the Unisphere ERX Router • Sends Unique User ID Data to the ISP • ISP Allows more Speed and Sends Targeted Advertising Demand for more Speed + User ID Content domain IP Core Edge Router Higher Bandwidth + Advertising (MPLS) Core BRAS Opera Browser 9 -10 July 2003 Workshop on Next Generation Networks: What, When & How? 11
The New Broadband Service Control Architecture (Session Control) other Voice e. g. Vo. D Gaming Softswitch ITU-T Service Intelligence SIP Apps. SIP-T SIP Service Selection Control SIP Proxy SIP MGCP/H. 248 Service Delivery Domain Access On the Move PSTN Home Broadband home, SME 9 -10 July 2003 IP Core WLAN BS ATM / Ethernet x. DSL HGW Edge Router separation of service selection and service interaction · Service interaction most probably SIP based · Architecture allows controlled access of independent service providers (e. g. gaming, Vo. D) · controlled access b/w · controlled Qo. S · billing/accounting possibilities PSTN / PLMN VPN POTS / ISDN · Architecture allows (MPLS) Core Workshop on Next Generation Networks: What, When & How? 12
Today's Network Overview ITU-T TDM IP Access Aggregation Core Transit SW Servers & Special Routers Transit SW e. g. ERX BB-RAS DMZ Gwy FW Web … SDH/DWDM Local SW SDH PBX POTS/ISDN/PABX CPE LAN DSL CPE ATM SOHO Local-Loop Enterprise IP Connection Single or multi home PBX CPE LAN PBX IP Terminals 9 -10 July 2003 POTS/ISDN/PABX IP Terminals Workshop on Next Generation Networks: What, When & How? 13
ITU-T All IP Network Multi Operator Scenario Operator A Operator B Access Core Aggregation Backbone BB-RAS VPN: PPP or MPLS Provider vs CPE provisioned POTS Trunks DSL CPE RAS selection CPE LAN IP Terminals 9 -10 July 2003 BB-RAS Core Access Aggregation L 2: - Low CAPEX & OPEX - Fast Failover Qo. S: - Engineering needed - 801. 1 p Prio. Ehternet - No advantage for MPLS - MPLS needs awareness throughout the path Regulatory: - More Transparency - e. g. RAS of other OP. Workshop on Next Generation Networks: What, When & How? 14
The 21 st Century network architecture ? • Co-existence and interworking ITU-T SCP architectures. for some time Agent, · Co-existence Softswitch, (Call. MGCF) with NGN MSC-S, CSCF, · Gradual migration of customers Access On the Move UMTS/ GSM Mobile Access Gateway WLAN BS PSTN POTS/ISDN Home Broadband Home, SME Corporate & High End SME Customer 9 -10 July 2003 ATM/ Ethernet x. DSL HGW Vo. TDM Data, Vo. IP Multi Service Acc. Gatew. Open I/f Parlay, CORBA · PSTN and PLMN will be about Call Contr. CDN Appl. IN Signaling HLR VLR (STP, SGW, GTT, LNP) Service Control · Who owns the intelligence wins COPS, SIP, MGCP interfaces between ! … • Open / MEGACOthe revenue Open service element·layer and OSS creation environment · centric view IP networks • Customer Agnostic to delivery Core • Customer access to management IP· Ethernet Metro / Multiple access technologies (WLAN, x. DSL, GE, …) VPN · DSLAM is evolving into the prime multi- Integration on • Multi-Service service GE the optical layer access gateway • Dynamic assignment of PSTN / PLMN RPR / MPLS Edge Router · Low end CPE - a commodity · High end CPE - multi service platform, (MPLS) capacity Core Voice Gateway • Becomes commodity • GE and Lambda products in mobility, security and managed · Customer lock-in by delivering metro Ethernet /managed services • Legacy ATM access NG Multi-Service Optical Networking Platform LL / VPN • Qo. S support Workshop on Next Generation Networks: What, When & How? Resource Control / Self Managing Network Management / OSS Applications / Content of multiple control 15
Not to forget ITU-T o Basic services need to be • interoperable • easy to use • affordable o Differentiation needs to be supported for • businesses • high end users 9 -10 July 2003 Workshop on Next Generation Networks: What, When & How? 16
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