BROADBAND TECHNOLOGIES & SERVICES Broadband Technologies -Core Network Telefocus’05 Broadband Technologies -Core Network

BROADBAND Broadband Signifies : High Bandwidth High Access speeds, 256 Kbps t o 100 Mbps Huge Core bandwidth pipes, STM –16 (SDH), GigE (MEN) and 2.5 GigE (DWDM / CWDM) Multiple Converged Services High Speed Data Voice Video

BROADBAND SERVICES Services Offered On Broadband : Data Services High Speed Internet Services Point to Point and Point to Multi Point VPN Services Web Hosting Applications Walled garden (Internet on TV) Voices Services Audio Conference Voice over IP (VoIP) Video Services Video Broadcast Video on Demand Video telephony Online Gaming

Multimedia Conference Video/Audio-On-Demand BROADBAND SERVICES Services Offered on Broadband Web Hosting Multimedia Conference Video/Audio-On-Demand Online Gaming Video on PC Revenue Value-added Applications Value Add applications to boost revenues Basic Telecom Service Voice Internet Time

BROADBAND COMPONENTS User Access Core Backend Core Network Business Voice over IP IP VPN NMS Server video communication Access & Aggregation Network Core Network NMS Client Radius Server Residential gaming video Video Server Soft Switch

BROADBAND NETWORK ELEMENTS Network Elements – Technology Options Corporate / SME / SOHO Residential User Wired Access ( DSL, Cable, FTTH) Wireless ( BWA, Wifi ) The Access The Media Optical Fiber The Technology SDH CWDM / DWDM ATM Ethernet The Core Authentication Server Content Servers Web Hosting Servers Video Servers Backend

BROADBAND NETWORK COMPONENTS Core Network Backend Access FTTH 100M MPLS 2 Fiber SM G.652 STB M/C Internet GigE Dual Homed Ring DNS DHCP AAA GigE Internet Gateway Router GigE DSLAM BBRAS Voice Services Server Internet Data Services Server TV/Video Services Servers

CORE NETWORK TECHNOLOGIES BB Core Technologies: Core Network: Architecture Ring Single Homing Dual Homing Mesh Technology ATM / IP / Ethernet SDH SDH over CWDM / DWDM

RING ARCHITECTURE Advantage Highly Reliable Low Cost Aggregation Ring 2 Fiber SM G.652 Core Switch Collector Advantage Low Cost Simple Architecture Disadvantage Hub – Potential Single Point failure Target Application Towards Access and Low Capacity Core Highly Reliable High Cost Solution. High Capacity Core Single Homed Dual Homed

MESH ARCHITECTURE Advantages Extremely Reliable Protection against Equipment / Fiber failure Disadvantages Very Complex and Costly to implement Target Application Highest Tier in Core Dual-Homed Mesh Core Ring Mesh Network

Technology Options on Core CORE TECHNOLOGIES Technology Options on Core ATM Backbone IP / Metro Ethernet SDH / CWDM / DWDM.

Traditional ATM Backbone Core Benefits: High deployment across the world Stabilized Technology Aggregation through multiple E1’s or upto STM 16 rings. Good for aggregating Higher bandwidths. Drawbacks: ATM pvc uses 10% overheads Higher Provisioning time.

ATM BACKBONE CORE DSLAM for Residential Internet Access– Traditional Way xDSL RFC 1483 Bridged Access E STM4/STM16 FTTH 100M STM4/STM16 A Metro Ethernet D LAN Switch STM4/STM16 ATM MESH RFC 1483 Bridged Access STM4/STM16 RFC 1483 Bridged Access B Internet xDSL Broadband RAS

METRO ETHERNET CORE Metro Ethernet Core Benefits: Deployment has started in Huge way across the world Aggregation through Fast Ethernet or Gigabit Ethernet. Highly recommended for high bandwidths requirements. Drawbacks: Technology getting standardized Limited support for VLAN’s. Single broadcast domain.

BROADBAND TECHNOLOGIES & SERVICES DSLAM for Residential Internet Access– Next Generation xDSL FE/Gig Ethernet Service Connectivity Provider Internet FE/Gig FE/Gig FE/Gig FE/Gig xDSL Internet Gateway Router IPDSLAM Broadband RAS

Inter-City Backbone Network Metro Transport and Aggregation Network SDH / CWDM / DWDM CORE Inter-City Backbone Network Backbone ATM STM1/STM4 on ATM Metro Transport and Aggregation Network 2 Fiber SM G.652 SDH Core Switch STM1/STM4 on Sonet Aggregation Ring (CWDM/DWDM) GigE MPLS GigE Internet Gateway Router GigE Internet Access Router Aggregation Node DSLAM traffic going to the core through Metro Ethernet BBRAS SDH Network STM 1/4/16 Internet Ethernet UNI Voice Services Server Internet Data Services Server TV/Video Services Servers DNS DHCP AAA xDSL Ethernet UNI

BROADBAND SERVICES THANK YOU Multiple Technology Options for Changing Needs Need for multiple service offering Focus on Centralized Management and Provisioning THANK YOU