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What Type of Network Intelligence is Needed in Next Generation Access Networks and Where?

What Type of Network Intelligence is Needed in Next Generation Access Networks and Where?. The case for intelligent access. Jasmin Kukavica. Agenda. NGA business model challenges Fundamental changes in telco service delivery How trends influence on NGA active network requirements

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What Type of Network Intelligence is Needed in Next Generation Access Networks and Where?

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  1. What Type of Network Intelligence is Needed in Next Generation Access Networks and Where? The case for intelligent access Jasmin Kukavica

  2. Agenda • NGA business model challenges • Fundamental changes in telco service delivery • How trends influence on NGA active network requirements • Why network intelligence is needed? • What type of network intelligence and where? • Intelligent Service Access • The answer for sustainable NGA deployment

  3. NGA business model challenges • Investments in fiber accesor next generation access (NGA) networksare CAPEX intensive • Current Telco business model • Vertical services • Flat rate unlimited broadband access • Problems with take-up rate • Money just from the end customer • Difficult for investors (network providers) to capitalise all the socio-economic benefits ofhigh-speed fiber access networks

  4. “Dumb Pipe” broadband model Over-the-top providers offer more & more services. Q: What can a network provider do? Nothing… Sell more bandwidth… Modify business model…

  5. Change of business model • Fiber access networks will require change of business model based on following simple business ideas: • Percieved value of different services and applications (which run on high speed broadband network) is different to different customers -> Network intelligence for QoS differentiation and charging of services per customer based on her/his priorities • Value of network is higher with more customers and services running on it -> Shared investments, wholesale, open broadband networks, “virtualisation of networks”

  6. IP session A IP session B IP session C Telco world is changing on several layers Content Providers E- services Telco services Internet Services/Applications Service Network Internet IPTV VoIP IPv4=> IPv6 Tablets Internet (L2 wholesale) Network Provider IPTV IP/Ethernet Ethernet Media TV /NTB VoIP Sm@rt phones Customer Customer

  7. IP sessions based network intelligence Customer side Subscriber managment Services/Applications AAA, Policy, DHCP, MN, (Self)provisioning Internet IP sessions Telco Services IP sessions IP sessions Content Providers E-Services

  8. Where to implement network intelligence? • Network Service delivery is an end to end story, but the network can be divided in two main functional parts: • Subscriber Service edge • Subscriber service profile • Application aware • Controlling IP sesssions • Reliable packet transport according to SLA

  9. L3 vs. L2 service edge • L3 service edge (subscriber and application aware) +needed for ISPs and L3 VPN services • How to control bottelnecks in the access, aggregation, backhaul? • Scalability and price (growing bandwidth, number of sessions to control) Solution: Distribution (of functions) and simplification • L2 service edge (subscriber and application aware) + Needed for next generation wholesale, open access provider provider, business L2 VPN services + In Access or Aggregation (for legacy access nodes) + Service provisioning close to the customer + Enchanced network security and QoS control + Lower network CAPEX and TCO

  10. L2 Service Edge Architectures Network provider Service provider MPLS transport Centralized (intelligent aggregation) architecture L2SE 1:1 VLAN CPE Aggregation Distribution Access Possible placement for L2SE Intelligent access architecture L2SE CPE Aggregation Distribution Access L2 service instances, E-Line, E-LAN services L2SE L2 service edge, per subcriber service control and provisioning, MPLS (or PBB) packet transport only, no per subcriber service provisioning or operations

  11. Moving intelligence to the access (ISA) • L2 (Ethernet) service edge: • QoS (bandwidth, priortiy) per subscriber per service per service/application provider • Advanced VLAN “manipulation” • i.e. different types of QinQ, VLAN remarking, multicast VLAN • IP session (application, service) awarness and high access list scalability (needed for QoS, security, accounting actions) based on L2, L3 L4 header information • AAA (Authentication, Authorisation, Accounting) client • Profile (subscriber, service) based provisioning of L2 network services • More in the future

  12. What are the key benefits of ISA? • Lower CAPEXdue to less complex aggregation (and IP edge in some cases) equipment: • Network Provider for L2 wholesale services • Open Access providers • Vertically integrated network and ISP providers • Lower OPEXdue to easier e2e QoS and subscriber service provisioning (just on subscriber port) • Abillity to innovate and develop advanced business models for network providers (OTT and Telco synergy) • Abillityfor advanced business connectivityon universal access platform

  13. Conclusion NGA networks are not just about new physical layer Innovative (and new) business models should have innovative network features The right active network architecture is the key part of the NGA network

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