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

BROADBAND Broadband Signifies : High Bandwidth • High Access speeds, 256 Kbps t o BROADBAND Broadband Signifies : High Bandwidth • High Access speeds, 256 Kbps t o 100 Mbps • Huge Core bandwidth pipes, STM – 16 (SDH), Gig. E (MEN) and 2. 5 Gig. E (DWDM / CWDM) Multiple Converged Services • High Speed Data • Voice • Video Telefocus’ 05

BROADBAND SERVICES Services Offered On Broadband : • Data Services • High Speed Internet 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 (Vo. IP) • Video Services • Video Broadcast • Video on Demand • Video telephony • Online Gaming Telefocus’ 05

BROADBAND SERVICES Services Offered on Broadband Web Hosting Multimedia Conference Video/Audio. On-Demand Video on BROADBAND SERVICES Services Offered on Broadband Web Hosting Multimedia Conference Video/Audio. On-Demand Video on PC Online Gaming Revenue Value-added Applications Value Add applications to boost revenues Telefocus’ 05 Basic Telecom Service Voice Internet Time

BROADBAND COMPONENTS User Access Core Backend Business Voice over IP IP VPN video communication BROADBAND COMPONENTS User Access Core Backend Business Voice over IP IP VPN video communication Residential gaming NMS Server Access & Aggregation Network Core Network NMS Client Radius Server video Video Server Soft Switch Telefocus’ 05

BROADBAND NETWORK ELEMENTS Network Elements – Technology Options User The Access • Corporate / BROADBAND NETWORK ELEMENTS Network Elements – Technology Options User The Access • Corporate / SME / SOHO • Residential • Wired Access ( DSL, Cable, FTTH) • Wireless ( BWA, Wifi ) • The Media • Optical Fiber The Core • The Technology • SDH • CWDM / DWDM • ATM • Ethernet Backend • Authentication Server • Content Servers • Web Hosting Servers • Video Servers Telefocus’ 05

BROADBAND NETWORK COMPONENTS Core Network Access FTTH 100 M STB Backend MPLS M/C 2 BROADBAND NETWORK COMPONENTS Core Network Access FTTH 100 M STB Backend MPLS M/C 2 Fiber SM G. 652 Internet Dual Homed Ring Gig. E DSLAM Internet Gateway Router BBRAS Telefocus’ 05 • DNS • DHCP • AAA • Voice Services Server • Internet Data Services Server • TV/Video Services Servers

CORE NETWORK TECHNOLOGIES BB Core Technologies: Core Network: Architecture • Ring • Single Homing CORE NETWORK TECHNOLOGIES BB Core Technologies: Core Network: Architecture • Ring • Single Homing • Dual Homing • Mesh Technology • ATM / IP / Ethernet • SDH over CWDM / DWDM Telefocus’ 05

RING ARCHITECTURE Advantage • Low Cost • Simple Architecture Disadvantage • Hub – Potential RING ARCHITECTURE Advantage • Low Cost • Simple Architecture Disadvantage • Hub – Potential Single Point failure Target Application • Towards Access and Low Capacity Core Advantage • Highly Reliable • Disadvantage • High Cost Solution. Target Application • High Capacity Core 2 Fiber SM G. 652 Aggregation Ring Collector Ring Core Switch Dual Homed Single Homed Telefocus’ 05

MESH ARCHITECTURE Advantages • Extremely Reliable • Protection against Equipment / Fiber failure Disadvantages 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 Telefocus’ 05

CORE TECHNOLOGIES Technology Options on Core 1. 2. 3. ATM Backbone IP / Metro CORE TECHNOLOGIES Technology Options on Core 1. 2. 3. ATM Backbone IP / Metro Ethernet SDH / CWDM / DWDM. Telefocus’ 05

ATM BACKBONE Traditional ATM Backbone Core Benefits: 1. High deployment across the world 2. ATM BACKBONE Traditional ATM Backbone Core Benefits: 1. High deployment across the world 2. Stabilized Technology 3. Aggregation through multiple E 1’s or upto STM 16 rings. 4. Good for aggregating Higher bandwidths. Drawbacks: 1. ATM pvc uses 10% overheads 2. Higher Provisioning time. Telefocus’ 05

ATM BACKBONE CORE DSLAM for Residential Internet Access– Traditional Way x. DSL RFC 1483 ATM BACKBONE CORE DSLAM for Residential Internet Access– Traditional Way x. DSL RFC 1483 Bridged Access E STM 4/STM 16 FTTH 100 M A STM 4/STM 16 D Metro Ethernet LAN Switch STM 4/STM 16 RFC 1483 Bridged Access x. DSL ATM MESH RFC 1483 Bridged Access B Broadband RAS Telefocus’ 05 Internet

METRO ETHERNET CORE Metro Ethernet Core Benefits: 1. Deployment has started in Huge way METRO ETHERNET CORE Metro Ethernet Core Benefits: 1. Deployment has started in Huge way across the world 2. Aggregation through Fast Ethernet or Gigabit Ethernet. 3. Highly recommended for high bandwidths requirements. Drawbacks: 1. Technology getting standardized 2. Limited support for VLAN’s. 3. Single broadcast domain. Telefocus’ 05

BROADBAND TECHNOLOGIES & SERVICES DSLAM for Residential Internet Access– Next Generation x. DSL FE/Gig BROADBAND TECHNOLOGIES & SERVICES DSLAM for Residential Internet Access– Next Generation x. DSL FE/Gig Ethernet Service Connectivity Provider FE/Gig Internet Gateway Router x. DSL IPDSLAM Broadband RAS Telefocus’ 05

SDH / CWDM / DWDM CORE Inter-City Backbone Network Backbone ATM STM 1/STM 4 SDH / CWDM / DWDM CORE Inter-City Backbone Network Backbone ATM STM 1/STM 4 on ATM 2 Fiber SM G. 652 Metro Transport and Aggregation Network SDH STM 1/STM 4 on Sonet Core Switch Aggregation Ring (CWDM/DWDM) MPLS Gig. E DSLAM traffic going to the core through Metro Ethernet UNI Aggregation Node Internet Access Router Internet Gateway Router BBRAS SDH Network STM 1/4/16 x. DSL Ethernet UNI Telefocus’ 05 Internet • Voice Services Server • Internet Data Services Server • TV/Video Services Servers • DNS • DHCP • AAA

BROADBAND SERVICES • Multiple Technology Options for Changing Needs • Need for multiple service BROADBAND SERVICES • Multiple Technology Options for Changing Needs • Need for multiple service offering • Focus on Centralized Management and Provisioning THANK YOU Telefocus’ 05