Broadband Multiplay Project Overview PDF

JTO Ph-II (DNIT) Broadband Multiplay Project Overview 2 BROADBAND MULTIPLAY PROJECT OVERVIEW 2.1 LEARNING OBJECTIVES The objectives of this chapter is to understand i) Broadband ii) NIB-II Projects...

JTO Ph-II (DNIT) Broadband Multiplay Project Overview 2 BROADBAND MULTIPLAY PROJECT OVERVIEW 2.1 LEARNING OBJECTIVES The objectives of this chapter is to understand i) Broadband ii) NIB-II Projects iii) Network architecture of NIB-II iv) Components of Broadband Access Network v) Architecture & Components of Broadband Multiplay vi) Services on Broadband Multiplay 2.2 INTRODUCTION Broadband networks provide a medium capable of quickly delivering information, communications and entertainment (―ICE‖). High speed wired and wireless networks can transmit digital bits making it even possible for instantaneous delivery of capacity intensive applications such as full motion video like that seen on broadcast, cable and satellite television channels. Prior generations of narrowband networks could not deliver such content, because they had available limited amount of channel capacity, also known as bandwidth. Such narrowband channels only could handle slow speed services, such as electronic mail, because of limited available radio spectrum, or closed circuit capacity, typically measured in cycles per second, or Hertz (―Hz‖). Attempts to use narrowband networks for services requiring high bandwidth resulted in user frustration as the desired content could not arrive fast enough to deliver a clear and constantly changing video image, or even a high fidelity signal for reliable voice and music delivery. Narrowband lines created a backlog of traffic commonly termed a bottleneck. The inability to provide timely delivery of traffic resulted in congestion. Broadband technologies, like those used to support the Internet offer the promise of faster, better, smarter, more versatile, personalized, cheaper and more convenient access to a wealth of ICE services. Few users of available broadband networks have provided these benefits for the slower, but cheaper option of using older technologies, such as conventional, dial up telephone networks. With retrofitting existing wired and wireless telephone networks can combine analog, voice services, with digital, data services. Likewise cable television networks can add data and telephone services to existing video offerings. Subscribers of these broadband services enjoy reliable and user friendly access to a broad array of services. 2.3 WHAT IS BROADBAND? TRAI has defined Broadband as an always on data connection that is able to support interactive services including internet access and has the capability of minimum download speed of 512 kbps to an individual subscriber from the point of presence (POP) of the service provider intending to provide broadband service where multiple such individual broadband connection are aggregated and the subscriber is able to access these interactive services including the internet through this POP. The interactive services will exclude any JTO Ph-II Version 3.0 Aug 2021 Page 12 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview service for which separate license is specifically required, for example, real time voice transmission, except to the extent that it is presently permitted under ISP license with Internet telephony. 2.4 ADVANTAGES OF BROADBAND Always on (Not on shared media) Fast (> 512 kbps ) No disconnection No additional access charge Telephone and Data simultaneously 2.5 WIRED BROADBAND TECHNOLOGIES There are many different types of broadband access technologies. Each of these technologies can compete to provide similar services to consumers and businesses. Digital Subscriber Line (DSL, given over copper loop of Telecom operators) Cable Modem (CM, Given over cable TV operators coaxial cable network) Power Line Broadband (BPL, Over Power lines) Fiber technology 2.6 DIGITAL SUBSCRIBER LINE (DSL) Digital Subscriber line (DSL) is a wire line transmission technology that brings data and information faster over copper telephone lines already installed in homes and business. Traditional phone service connects your home or business to a telephone company office via copper wires. A DSL modem accesses the local telephone company‘s central office where a DSL Access DSLAM then transmits the signal from the copper telephone line onto a network backbone, and eventually to the Internet. With high speed Internet access that uses DSL transmission technology, there is no need to ―dial in‖ to a traditional modem. This service allows consumers and business to have an ―always-on‖ dedicated connection to the Internet. The following are types of DSL transmission technologies that may be used to provide high-speed Internet access. SYMMETRICAL DIGITAL SUBSCRIBER LINE (SDSL) It is used typically for business applications such as video conferencing. The traffic from the user to the network is upstream traffic, and from the network to the user is downstream traffic. When the data rate in both directions is equal, it is called a symmetric service. ASYMMETRICAL DIGITAL SUBSCRIBER LINE (ADSL) It is used primarily by residential users who receive a lot of data but do not send much such as Internet surfers. ADSL provides faster speed in a downstream direction (from the telephone central office to the customer‘s premises) than upstream (from customer‘s premise to the telephone central office). When the upstream data rate is lower than the downstream rate, it is called an asymmetric service. JTO Ph-II Version 3.0 Aug 2021 Page 13 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview ADSL STANDARDS Family Up-stream Down stream Maximum range Rate ADSL 640 kbps 8 Mbps 5.5 Km ADSL2 1-1.5 Mbps 12-16 Mbps 5.7 Km ADSL2 + 1 Mbps 26 Mbps 5.7 Km HIGH-DATA-RATE DIGITAL SUBSCRIBER LINE (HDSL) It provides fixed symmetrical high-speed access at T1 rate (1.5 mbps), and is designed for business purposes. VERY HIGH-DATA-RATE DIGITAL SUBSCRIBER LINE (VDSL) It provides both symmetrical and asymmetrical access with very high bit rate over the copper line. Deployment is very limited at this time. 2.7 BSNL’S BROADBAND ACCESS TECHNOLOGY BSNL Broadband service is built on a world class, multi-gigabit, multi-protocol, convergent IP infrastructure through National Internet Backbone-II (NIB-II) that provides convergent services through the same backbone and broadband access network. In BSNL Asymmetric Digital Subscriber Line (ADSL) Technology is used for giving the Broadband connection where greater download is required in comparison to upload. FOR BSNL BROADBAND CONNECTION, CUSTOMER NEEDS:  BSNL‘s Landline connection  Computer with 10/100 Mbps Ethernet Card  DSL Modem + Splitter (CPE)  PPPoE software to be loaded in the Client  Broadband Account (Username and Password) 2.8 SERVICES OFFERED TO BROADBAND CUSTOMERS  Basic Internet Access Service controlled and uncontrolled (512Kbps to 1000Mbps). BSNL has various tariff plans for home and business customers.  Content Based services: [Video on Demand (VoD), Education, Audio on Demand (AoD) etc.  Web conferencing: BSNL has tied up with a franchisee to offer this service. Toll free number for knowing details is 1800-111-233. BSNL Web Conferencing Service enables to conduct virtual meetings with business partners, suppliers, employers etc. It has the innovative feature such as Persistent meeting rooms, which simulates physical room environment wherein authorized users can enter their designated JTO Ph-II Version 3.0 Aug 2021 Page 14 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview rooms the way they do in physical meetings.  The users can access the rich features, apart from multi-point, multi-media (Audio, Video & Data) conferencing service, BSNL web Conferencing service provides very powerful data conferencing tools to enhance collaboration among users such as sharing of PowerPoint Presentation, Whiteboard, Documents, & Chat facility amongst the conference participants, which will significantly aid in increasing the effectiveness of your business meetings. BSNL Web Conferencing Service does not require expensive end points; all that you require are a PC, Web-cam and an ADSL Connection.  It is ideally suited for users at all levels in large corporate houses, Small and medium businesses, SOHOs & quality conscious individuals to enhance collaboration, increase productivity and save costs.  VPN on broadband.  Bandwidth on Demand (User and or service configurable) 2.9 NIB II PROJECT DETAILS The turnkey implementation of ―National Internet Backbone- Phase II‖ involved the following projects: Name of project Description Project 1 MPLS based IP Infrastructure Project 2.1 Narrowband Access (Dialup Remote Access) Project 2.2 Broadband Access (DSL Access) Project 3 Messaging, Storage, Provisioning, Billing, Security, Order Management, Enterprise Management, AAA, Help Desk and Inventory Management. NIB-II envisages four projects:-  MPLS based IP Infrastructure in 100 cities (29 city STM-16 core).  Access Gateway platform Narrow band (Augmentation of existing Dial up Internet capacity.  Access Gateway Platform Broadband in 235 cities (Based on ADSL Technology)  Services Platform consisting of messaging, Provisioning, billing, customer care, enterprise management system and Data centres.  100 location Managed IP & MPLS Network using MPLS enabled Routers  Centralized NOC and DR site for NMS & PMS o NOC site at Bangalore, DR site at Pune  Integration with Narrowband and Broadband RAS Projects JTO Ph-II Version 3.0 Aug 2021 Page 15 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview  Test bed Setup - Proof of Concept Centre Network Connectivity (BroadBand) AAA LDAP Core Core Provisioning router NOC Broadband BB SSSS RAS Tier1 GigE ADSL Aggregation terminals SW GigE..DSLAM.. Tier 2 LAN Switch FE FE FE X-ge C X-ge E X-ge D X-ge F..DSLAM.. X-ge B..DSLAM....DSLAM.. X-ge A ADSL ADSL ADSL ADSL ADSL terminals terminals terminals ADSL terminals terminals terminals Figure 4: Network Connectivity Diagram of Broadband 2.10 OBJECTIVES OF NIB-II  NIB-II is a mission to build world-class infrastructure that will help accelerate the Internet revolution in India.  It provides a diversified range of Internet access services including support for VPN (Layer-2, Layer-3 and Dialup and Broadband services)  It also offers SLA Reports including security, Qos and any to any connectivity.  Offers fully managed services to customers.  It offers services like bandwidth on demand etc. over the same network.  The network is capable of on-line measurement and monitoring of network parameters such as latency, packet loss, jitter and availability so as to support SLAs with customers  The routers support value added services such as VPNs, Web and content hosting, Voice over IP, Multicast etc.  Value Added Services like  Encryption Services JTO Ph-II Version 3.0 Aug 2021 Page 16 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview  Firewall Services  Multicast Services  Network Address Translation (NAT) Service that will enable private users to access public networks  Messaging Services  Internet Data Centre Services at Bangalore, Delhi and Mumbai.  Broad Band Services like  Broadcast TV using IP Multicasting service  Multicast video streaming services  Interactive Distant learning using IP multicasting Services  Video on demand  Interactive gaming service 2.11 NIB- II PROJECT a) Project 1 – IP / MPLS Core Backbone  100 location Managed IP & MPLS Network  Awarded to HCL Infosystems Ltd.  Network using Cisco (12410, 12416, 7613) and Juniper (M40e, M20) Router  Common Backbone for all other projects of BSNL and integration with other projects of NIB-2 and other Data Projects of BSNL  International Gateways connected for Internet access  Provides MPLS-VPN Services and Internet Services, in certain cases b) Project 2.1 – Narrowband Access Network  Consists of Narrowband RAS (NRAS)  Awarded to UTStarcom  Network built using UTStarcom Total Control 1000  Provides access to Dial-up Customers for Internet Access & Dial-VPN c) Project 2.2 – Broadband Access Network  Network for Providing Broadband Access JTO Ph-II Version 3.0 Aug 2021 Page 17 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview  Awarded to Huawei and UTStarcom (70 : 30 Split)  Network built on Huawei Broadband RAS (BRAS), Huawei Tier-1 Switch, Huawei / 3Com Tier-2 Switch and Huawei / UTStarcom DSLAMs  Provides Broadband Internet Access (DataOne) and VPN Services  Broadband RAS (BRAS) working as PE Router for MPLS Core Network  BRAS present at all ‗A‘ Type Locations – 23 in No.  Tier-1 Switch co-located with and connected to BRAS  Layer 2 Network below is aggregated by Tier-1 Switch  Tier-2 Switches connecting to Tier-1 Switches in Star Fashion  DSLAMs connect to Tier-2 Switch Broadband Project 2.2 Layout d) Project 3 – Server / Application Infrastructure  Consists of Data Centers in 4 locations – Bangalore, Pune, Mumbai & Noida  Awarded to TCIL consortium with TCS and IBM  IBM Servers, Nortel Network & Security equipment  Provides Mail, DNS, Co-Hosting, Co-location, Billing etc. JTO Ph-II Version 3.0 Aug 2021 Page 18 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview NIB-II Broadband DSL Deployment Core Network interfaces SSSS at NOC Core FE router Broadband GigE FE RAS Content BB Server GigE ADM ADM FE FE ADM SDH RING Tier1 Layer2 ADM B1 city ADM Tier2 LAN GigE Aggregation B2 city Switch Gig E & FE Switch FE FE From MDF FE FE FE Max 10/20 KM GE 240 Port 48 Port 24 Port Dark fiber DSLAM 120 Port DSLAM DSLAM DSLAM 60 Port 480 Port DSLAM DSLAM ADSL ADSL terminals ADSL terminals ADSL ADSL terminals terminals Splitter 65 Figure 5: DSL Deployment Network Architecture of NIB- 2.2 Broadband Project Equipment deployment AAA LDAP Project 1 Core Core Provisioning router NOC Broadband BB SSSS RAS Tier1 GigE ADSL Aggregation terminals SW GigE..DSLAM.. Tier 2 LAN Switch FE FE FE X-ge C X-ge E X-ge D X-ge F..DSLAM.. X-ge B..DSLAM....DSLAM.. X-ge A ADSL ADSL ADSL ADSL ADSL terminals terminals terminals ADSL terminals terminals terminals Figure 6: Broadband Project 2.2 Network 2.12 NETWORK ARCHITECTURE  A1 – 5 Core cities:-  Bangalore, Chennai, Mumbai, Delhi, Kolkatta.  A2/A3 – 9 next level core cities:- JTO Ph-II Version 3.0 Aug 2021 Page 19 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview  Pune, Hyderabad, Ahmedabad, Ernakulam, Lucknow, Jaipur, Indore, Jullundur, Patna.  A4 – 10 Major cities.  B1, B2 – 76 other cities.  A1 city core routers (Cisco 12416) are fully meshed between locations on STM-16.  A2 core routers (Cisco 12410) dual home to Core A1 routers on STM-16.  A3 core routers (Cisco 12410) are dual home to the nearest A1 or A2 routers on STM- 16.  A4 core routers (Juniper M40) are dual home to the nearest A1 or A2 or A3 routers on STM1 links.  IGW – International Gateway Router – Connectivity to Internet is through this router.  IXP – Internet Exchange Point – ISP‘s connect each other through this router.  IDC – Internet Data Center – for connecting to BSNL Data Centers.  IP-TAX – BSNL IP-TAX traffic enters to NIB2 through this router.  RR – Router Reflector – For reflecting of BGP routes to the edge routers.  B1 and B2 cities have only EDGE routers, which are dual homed to nearest A1/A2/A3/A4 core routers.  All Core locations also have edge routers.  10 A4 locations have Juniper core routers with Cisco 7613 Edge routers.  Some core locations have Cisco core router and Juniper edger router. NIB2 Expansion and Year 2 Order Overview  29 locations added which makes the total to 100  Core backbone is getting aligned to BSNL Transmission (DWDM) network  24 City core network increased to 29  All 29 city core network links are STM-16 (ie STM1 connectivity of A4 cities will be upgraded to STM16)  New 5 Cities are Belgaum, Dehradun, Rajkot, Jodhpur, Jabalpur METRO ETHERNET PROJECT  Providing Metro Ethernet Broadband connectivity at A1 and A2 locations of NIB2 JTO Ph-II Version 3.0 Aug 2021 Page 20 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview  Total 12 routers ordered for Metro Ethernet Project  2 routers each at 6 locations for Metro Ethernet project  Bangalore (A1) – 1*12416 and 1*12410  Chennai (A1) – 1*12416 and 1*12410  Kolkata (A1) – 1*12416 and 1*12410  Ahmedabad (A2) – 2*12410  Hyderabad (A2) – 2*12410  Pune (A2) – 2*12410 2.13 COMPONENTS OF BROAD BAND ACCESS NETWORK  Broad band Remote Access Server (BBRAS)  Gigabit and Fast Ethernet Aggregation Switches (LAN Switches).  Digital Subscriber Line Access Multiplexers (DSLAMs)  SSSS/SSSC (Subscriber Service Selection System/ Centre)  Servers for AAA, LDAP at NOC.  Provisioning and configuration management at NOC.  DSLCPEs  The DSLAMs will in general be collocated with existing PSTN exchanges, which provide last mile access to customers over copper wire up to average span lengths of 3 kms.  All DSLAMs will be aggregated through a FE interface except 480 port DSLAM, which will be aggregated through Gigabit Ethernet Interface.  The 240 ports DSLAM will have two number of FE interface.  The FX or GBIC module in DSLAM and LAN switch should be capable of driving upto 10km on a single mode fibre.  The SX or GBIC module in LAN Switch used for connecting Tier2 to Tier1 will support 40km.In bigger cities like A1, A2, A3 and A4, one BBRAS per city will be deployed initially.  There will be no BBRAS at B1 and B2 cities. JTO Ph-II Version 3.0 Aug 2021 Page 21 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview  The DSLAMs in B1.B2 and other lower hierarchical cities will be aggregated through Layer 2 switches, and will be connected to the nearest BBRAS of A cities on Ethernet over SDH.  The BRAS shall terminate the PPP sessions initiated by the customer and extend the connection further to MPLS VPN/ Internet as desired by the customer. 2.14 WHAT IS BB MULTIPLAY? The triple play service means providing the following service to the customer: -  Data (Internet)  Voice (VoIP and not the PSTN which is already provided on broadband also)  Video (IPTV, VoD or in general live broadcast and stored broadcasting using video streaming protocols) 2.15 BROADBAND MULTIPLAY PROJECT COMPONENTS  L3PE (MCR / PE Router of NIB-2 Project 1 – Supplied by HCL)  BNG – Broadband Network Gateway  Connects Multiplay Network to NIB2 Backbone (Project 1)  RPR Tier-1 Switch  Provides connectivity from BNG to Connects  RPR Tier-2 Switch  OC LAN Tier-2 Switch  DSLAM  DSL Tester  Installation Related Material JTO Ph-II Version 3.0 Aug 2021 Page 22 of 103 For Restricted Circulation JTO Ph-II (DNIT) Broadband Multiplay Project Overview Figure 7: Broadband Multiplay Network Components 2.16 FEATURES OF BROADBAND MULTIPLAY Multiplay Broadband provides voice, data and streaming video services. Maximum download speed can go up to 24 Mbps. On demand services like Audio on Demand (AoD),Games on Demand (GoD), Video on Demand (VoD), Video Conferencing, IPTV etc. can be easily planned through Multiplay Broadband. 2.17 CONCLUSION Broadband Multiplay network provides voice, data and video services, and hence called multiplay (Multiple Services). Major components CPE, DSLAM, RPR Switches, monitoring each and every packet and its quality parameters and accordingly provides services to end users. JTO Ph-II Version 3.0 Aug 2021 Page 23 of 103 For Restricted Circulation