1. Colombo, Sri Lanka, 7-10 April 2009 Efficient Backhauling Strategies for NGNs using Carrier-Ethernet SIVA RAMAMOORTHY, Group Director, Marketing Tejas Networks FORUM ON NEXT GENERATION STANDARDIZATION (Colombo, Sri Lanka, 7-10 April 2009)

2. Agenda Emerging Bandwidth-demanding IP Services Establishing Transport Requirements Carrier-Ethernet Transport Colombo, Sri Lanka, 7-10 April 2009

3. Emerging IP Applications Colombo, Sri Lanka, 7-10 April 2009

4. Big Picture 3G WIRELESS BACKHAUL ENTERPRISE NETWORK ELAN, VOICE ETC. INCREASING BROADBAND INTERNET BASE – YouTube, Video-on- demand applications etc. IPTV CABLE DSLAM ONLINE GAMING BTS 2G/2.5G WIRELESS BACKHAUL MOBILE TV/ APPLICATIONS ? What is the Transport? Colombo, Sri Lanka, 7-10 April 2009

5. Carrier Challenges Should I have single infrastructure for residential and business customers ? How do I provide more stringent SLA, Fault Management, Performance Monitoring and demarcation to Enterprise customers ? How do I keep the cost (CAPEX and OPEX) under check ? How to Cope up with the growth in backhaul bandwidth requirements ? What is the best way to transport ? Transport Capacity Time Colombo, Sri Lanka, 7-10 April 2009

6. Transport Technologies Trends Carrier- Ethernet over NG-SDH 100% Data 100% Voice Legacy PTTBasic Data over conventional Networks Next-Generation Networks Future Evolution Legacy SDH ATM over SDH Carrier- Ethernet over NG-SDH Carrier- Ethernet over Fiber (With Synchronization With Circuit-emulation) Ethernet over NG-SDH Colombo, Sri Lanka, 7-10 April 2009

7. Establishing requirements Conventional Telephony Services Point-to-point connections from Access to Controller Sub-50ms protection for voice User-defined work and protect paths Fast and automated Fault-detection and isolation QoS for various traffic-profiles (Data, Voice, Video) Statistical Multiplexing Hierarchical QoS to distinguish between Control and Data traffic Dynamic Protection (no user- defined work and protect paths) Any-to-any connectivity with multicast-support Emergence of Data Services Next-Generation Networks Colombo, Sri Lanka, 7-10 April 2009

8. Which technology for backhaul? Point-to-point connections from Access to Controller Sub-50ms protection for voice User-defined work and protect paths Fast and automated Fault-detection and isolation QoS for various traffic-profiles (Data, Voice, Video) Statistical Multiplexing Hierarchical QoS to distinguish between Control and Data traffic Dynamic Protection (no user- defined work and protect paths) Any-to-any connectivity with multicast-support Hierarchy is built-in PBB+ERPS for connection-less protection, Shortest Path Bridging Fundamental feature of Ethernet Natively provided through 802.1p Fundamental feature of Ethernet Traffic-Engineered (user-defined) point- to-point connections through PBB-TE IEEE G.8031 and G.8032 for Sub-50ms protection Option for NMS-provisioned paths IEEE and ITU-T: CFM-OAM, EthOAM, EFM-OAM Carrier- Ethernet Colombo, Sri Lanka, 7-10 April 2009

9. Summary Bandwidth in-efficient provisioned circuits 50-ms protection bandwidth efficiency (sharing) No OAM, no Traffic- engineering Flat network SDH/SONET Legacy Ethernet Bandwidth efficient Carrier-grade OAM Sub-50ms protected P-to-P and MP-to-MP Carrier-Ethernet Transport Carrier-Ethernet Transport for NGN Backhaul Sophisticated Carrier grade Ethernet transport solution Carrier grade management and reliability Evolve gracefully, keep revenues ahead of costs Lower Operations and training costs Colombo, Sri Lanka, 7-10 April 2009

10. Thank You SIVA RAMAMOORTHY Group Director, Marketing