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Questions and Answers

What is the number of location managed IP & MPLS Network?

  • 50
  • 100 (correct)
  • 200
  • 500

    • Where is the NOC site located?

  • Delhi
  • Mumbai
  • Pune
  • Bangalore (correct)

    • What is integrated with Narrowband and Broadband RAS Projects?

  • AAA
  • Managed IP
  • LDAP
  • MPLS Network (correct)

    • What is the purpose of the Test bed Setup?

    <p>Proof of Concept Centre</p> Signup and view all the answers

    What is connected to the Core router?

    <p>Provisioning</p> Signup and view all the answers

    What type of connectivity is used in the Network?

    <p>Broadband</p> Signup and view all the answers

    Where is the DR site located?

    <p>Pune</p> Signup and view all the answers

    What is used for authentication in the Network?

    <p>AAA</p> Signup and view all the answers

    What is the minimum download speed of broadband connection?

    <p>512 kbps</p> Signup and view all the answers

    What is the primary benefit of using broadband over older technologies?

    <p>Reliable and user-friendly access to services</p> Signup and view all the answers

    What is excluded from interactive services in broadband connection?

    <p>Real-time voice transmission</p> Signup and view all the answers

    What is the characteristic of broadband connection?

    <p>Always on and not on shared media</p> Signup and view all the answers

    What can cable television networks add to their existing video offerings?

    <p>Data and telephone services</p> Signup and view all the answers

    What is not an advantage of broadband?

    <p>Additional access charge</p> Signup and view all the answers

    What can be supported by broadband connection?

    <p>Interactive services including internet access</p> Signup and view all the answers

    What can be aggregated in broadband connection?

    <p>Multiple individual broadband connections</p> Signup and view all the answers

    What is the typical location of DSLAMs?

    <p>Collocated with existing PSTN exchanges</p> Signup and view all the answers

    What type of interface is used for aggregating 480 port DSLAMs?

    <p>Gigabit Ethernet Interface</p> Signup and view all the answers

    What is the triple play service?

    <p>Providing data, voice and video services to the customer</p> Signup and view all the answers

    What is the maximum span length of copper wire used for last mile access to customers?

    <p>3 kms</p> Signup and view all the answers

    What is the function of the BRAS?

    <p>To terminate PPP sessions and extend connections to MPLS VPN/Internet</p> Signup and view all the answers

    What is the function of the BNG in the Broadband Multiplay Project?

    <p>To connect the Multiplay Network to the NIB2 Backbone</p> Signup and view all the answers

    How are DSLAMs in B1, B2 and other lower hierarchical cities connected to the nearest BBRAS?

    <p>Through Layer 2 switches and Ethernet over SDH</p> Signup and view all the answers

    What is the maximum download speed of the Broadband Multiplay?

    <p>Up to 24 Mbps</p> Signup and view all the answers

    How many FE interfaces does a 240 port DSLAM have?

    <p>Two</p> Signup and view all the answers

    What type of services can be easily planned through Multiplay Broadband?

    <p>On demand services like Audio on Demand, Games on Demand, Video on Demand, etc.</p> Signup and view all the answers

    What does the term 'Multiplay' refer to?

    <p>Multiple Services</p> Signup and view all the answers

    What is the maximum distance that the FX or GBIC module in DSLAM and LAN switch can drive on a single mode fibre?

    <p>10 km</p> Signup and view all the answers

    What is the maximum distance that the SX or GBIC module in LAN Switch used for connecting Tier2 to Tier1 can support?

    <p>40 km</p> Signup and view all the answers

    What is the function of the RPR Tier-1 Switch?

    <p>To provide connectivity from BNG to Connects</p> Signup and view all the answers

    What is the function of the DSLAM?

    <p>To connect the customer's premises to the Broadband Multiplay Network</p> Signup and view all the answers

    What is monitored in the Broadband Multiplay Network?

    <p>Each and every packet and its quality parameters</p> Signup and view all the answers

    What is the main objective of NIB-II?

    <p>To build world-class infrastructure to accelerate the Internet revolution in India</p> Signup and view all the answers

    What type of services does NIB-II offer to customers?

    <p>Fully managed services including bandwidth on demand</p> Signup and view all the answers

    What is the capability of the NIB-II network?

    <p>It can measure packet loss, jitter, and availability online</p> Signup and view all the answers

    What value-added services are supported by NIB-II routers?

    <p>VPNs, Web and content hosting, Voice over IP, and Multicast</p> Signup and view all the answers

    What is the purpose of Network Address Translation (NAT) service?

    <p>To enable private users to access public networks</p> Signup and view all the answers

    Where are Internet Data Centre Services provided by NIB-II?

    <p>In Bangalore, Delhi, and Mumbai</p> Signup and view all the answers

    What type of reports are provided by NIB-II?

    <p>SLA reports including security, QoS, and any-to-any connectivity</p> Signup and view all the answers

    What type of access services are provided by NIB-II?

    <p>Diversified range of Internet access services including support for VPN, Dial-up, and Broadband services</p> Signup and view all the answers

    What is the minimum download speed of a broadband connection?

    <p>512 kbps</p> Signup and view all the answers

    What is an advantage of broadband over older technologies?

    <p>Faster speeds</p> Signup and view all the answers

    What can be aggregated in a broadband connection?

    <p>Individual broadband connections</p> Signup and view all the answers

    What is excluded from interactive services in a broadband connection?

    <p>Real-time voice transmission</p> Signup and view all the answers

    What can be supported by a broadband connection?

    <p>Interactive services including internet access</p> Signup and view all the answers

    What is a characteristic of a broadband connection?

    <p>Always on</p> Signup and view all the answers

    What can cable television networks add to their existing video offerings?

    <p>Data and telephone services</p> Signup and view all the answers

    What is a type of broadband access technology?

    <p>Wired</p> Signup and view all the answers

    What is the main feature of Bandwidth on Demand?

    <p>It is user and/or service configurable</p> Signup and view all the answers

    How many projects are involved in NIB-II?

    <p>Four</p> Signup and view all the answers

    What technology is used in the Broadband Access Gateway Platform?

    <p>ADSL</p> Signup and view all the answers

    What is the core network infrastructure in NIB-II?

    <p>STM-16</p> Signup and view all the answers

    What is the number of cities where the Access Gateway Platform Broadband is implemented?

    <p>235</p> Signup and view all the answers

    What is included in the Services Platform of NIB-II?

    <p>Messaging, provisioning, billing, customer care, enterprise management, and AAA</p> Signup and view all the answers

    What is the purpose of Project 2.1 in NIB-II?

    <p>To implement Narrowband Access</p> Signup and view all the answers

    What is the scope of Project 1 in NIB-II?

    <p>MPLS based IP Infrastructure in 100 cities</p> Signup and view all the answers

    What is the maximum range of ADSL?

    <p>5.5 Km</p> Signup and view all the answers

    What is the purpose of HDSL?

    <p>For business purposes</p> Signup and view all the answers

    What is required for BSNL Broadband connection?

    <p>BSNL's Landline connection</p> Signup and view all the answers

    What is the main characteristic of VDSL?

    <p>Very high bit rate over copper line</p> Signup and view all the answers

    What is the minimum download speed of BSNL's Basic Internet Access Service?

    <p>512Kbps</p> Signup and view all the answers

    What is the function of DSL Modem + Splitter (CPE) in BSNL Broadband connection?

    <p>To connect the customer's computer to the broadband network</p> Signup and view all the answers

    What is the maximum download speed of ADSL2+?

    <p>26 Mbps</p> Signup and view all the answers

    What is the infrastructure used by BSNL for providing convergent services?

    <p>National Internet Backbone-II (NIB-II)</p> Signup and view all the answers

    What is the main purpose of the NOC site?

    <p>To monitor and manage the network</p> Signup and view all the answers

    What type of routers are used in the Managed IP & MPLS Network?

    <p>MPLS enabled routers</p> Signup and view all the answers

    What is the purpose of the Test bed Setup in the Broadband Multiplay Project?

    <p>To test and validate network configurations</p> Signup and view all the answers

    What technology is used for user authentication in the network?

    <p>AAA</p> Signup and view all the answers

    What is the main function of the Core router in the network?

    <p>To provide network connectivity</p> Signup and view all the answers

    What type of connectivity is used in the Network?

    <p>Broadband</p> Signup and view all the answers

    What is integrated with Narrowband and Broadband RAS Projects?

    <p>Managed IP &amp; MPLS Network</p> Signup and view all the answers

    What is the purpose of the DR site?

    <p>To provide redundancy and disaster recovery</p> Signup and view all the answers

    What is the type of transmission technology that brings data and information faster over copper telephone lines?

    <p>Digital Subscriber Line (DSL)</p> Signup and view all the answers

    What type of DSL transmission technology is typically used for business applications such as video conferencing?

    <p>Symmetrical Digital Subscriber Line (SDSL)</p> Signup and view all the answers

    What is the primary use of Asymmetrical Digital Subscriber Line (ADSL) technology?

    <p>Residential users who receive a lot of data but do not send much</p> Signup and view all the answers

    What is the function of a DSL Access Multiplexer (DSLAM) in a DSL network?

    <p>To transmit the signal from the copper telephone line onto a network backbone</p> Signup and view all the answers

    What is the advantage of using DSL technology?

    <p>It provides an always-on dedicated connection to the internet</p> Signup and view all the answers

    What is the difference between upstream and downstream traffic in a DSL network?

    <p>Upstream is from the user to the network, downstream is from the network to the user</p> Signup and view all the answers

    What type of internet access is provided by a DSL connection?

    <p>Always-on dedicated connection</p> Signup and view all the answers

    What is the medium used for DSL transmission technology?

    <p>Copper wires</p> Signup and view all the answers

    What is the main benefit of BSNL Web Conferencing Service?

    <p>Sharing of PowerPoint Presentation, Whiteboard, Documents, &amp; Chat facility</p> Signup and view all the answers

    What is required to access BSNL Web Conferencing Service?

    <p>A PC, Web-cam and an ADSL Connection</p> Signup and view all the answers

    Which of the following is not a feature of BSNL Web Conferencing Service?

    <p>Video recording</p> Signup and view all the answers

    What is the primary target audience of BSNL Web Conferencing Service?

    <p>Small and medium businesses, SOHOs &amp; quality conscious individuals</p> Signup and view all the answers

    What is another service offered by BSNL apart from Web Conferencing?

    <p>All of the above</p> Signup and view all the answers

    What is the advantage of using BSNL Web Conferencing Service?

    <p>Enhances collaboration among users</p> Signup and view all the answers

    What can be shared using BSNL Web Conferencing Service?

    <p>PowerPoint Presentation, Whiteboard, Documents, &amp; Chat facility</p> Signup and view all the answers

    What is the toll-free number for knowing details about BSNL Web Conferencing Service?

    <p>1800-111-233</p> Signup and view all the answers

    What is the maximum range of ADSL?

    <p>5.5 Km</p> Signup and view all the answers

    What is the primary purpose of HDSL?

    <p>Business purposes</p> Signup and view all the answers

    What is required for a BSNL broadband connection?

    <p>All of the above</p> Signup and view all the answers

    What is the characteristic of VDSL?

    <p>Provides both symmetrical and asymmetrical access</p> Signup and view all the answers

    What is the purpose of BSNL's National Internet Backbone-II (NIB-II)?

    <p>To provide convergent services</p> Signup and view all the answers

    What is the maximum downstream rate of ADSL2+?

    <p>26 Mbps</p> Signup and view all the answers

    What is required to be loaded in the client for BSNL broadband connection?

    <p>PPPoE software</p> Signup and view all the answers

    What is the minimum requirement for the computer's Ethernet card for BSNL broadband connection?

    <p>10/100 Mbps</p> Signup and view all the answers

    What is the main objective of NIB-II?

    <p>To create a nationwide IP infrastructure</p> Signup and view all the answers

    What type of technology is used in the Broadband Access Gateway Platform?

    <p>ADSL</p> Signup and view all the answers

    What is a characteristic of the MPLS based IP Infrastructure project?

    <p>It has a 29 city STM-16 core</p> Signup and view all the answers

    What is the main feature of Bandwidth on Demand?

    <p>It is user and service configurable</p> Signup and view all the answers

    How many projects are involved in NIB-II?

    <p>4</p> Signup and view all the answers

    What is part of the Services Platform in NIB-II?

    <p>Messaging, Provisioning, and Billing</p> Signup and view all the answers

    Where is the MPLS based IP Infrastructure implemented?

    <p>In 100 cities</p> Signup and view all the answers

    What is the Access Gateway Platform Broadband used for?

    <p>For broadband access in 100 cities</p> Signup and view all the answers

    What is the purpose of Project 1 – IP / MPLS Core Backbone?

    <p>To provide a common backbone for all other projects of BSNL and integration with other projects of NIB-2 and other Data Projects of BSNL</p> Signup and view all the answers

    What is the function of Broadband RAS (BRAS)?

    <p>To work as PE Router for MPLS Core Network</p> Signup and view all the answers

    What type of services does Project 2.1 – Narrowband Access Network provide?

    <p>Access to Dial-up Customers for Internet Access &amp; Dial-VPN</p> Signup and view all the answers

    What is the purpose of Project 2.2 – Broadband Access Network?

    <p>To provide Broadband Internet Access (DataOne) and VPN Services</p> Signup and view all the answers

    What type of routers are used in Project 1 – IP / MPLS Core Backbone?

    <p>Cisco and Juniper routers</p> Signup and view all the answers

    What type of services are provided by NIB-II?

    <p>Broadband and Narrowband Access Services</p> Signup and view all the answers

    What is the function of Huawei Broadband RAS (BRAS)?

    <p>To work as PE Router for MPLS Core Network</p> Signup and view all the answers

    What type of switch is used in Project 2.2 – Broadband Access Network?

    <p>Huawei Tier-1 Switch</p> Signup and view all the answers

    What type of connectivity is used between A3 core routers and the nearest A1 or A2 routers?

    <p>STM-16 links</p> Signup and view all the answers

    What is the purpose of IGW – International Gateway Router?

    <p>Connectivity to Internet</p> Signup and view all the answers

    How many routers are ordered for Metro Ethernet Project?

    <p>12</p> Signup and view all the answers

    What type of routers are used in A4 core locations?

    <p>Juniper M40</p> Signup and view all the answers

    What is the function of RR – Router Reflector?

    <p>For reflecting of BGP routes to the edge routers</p> Signup and view all the answers

    What is the total number of city core network links after NIB2 expansion?

    <p>29</p> Signup and view all the answers

    What type of routers are used in EDGE locations?

    <p>Both Cisco 7613 and Juniper M40</p> Signup and view all the answers

    What is the connectivity of A4 cities upgraded to after NIB2 expansion?

    <p>STM-16</p> Signup and view all the answers

    What type of transmission technology is used to bring data and information faster over copper telephone lines?

    <p>Digital Subscriber Line (DSL)</p> Signup and view all the answers

    What is the main difference between SDSL and ADSL?

    <p>SDSL is used for video conferencing, while ADSL is used for internet surfing</p> Signup and view all the answers

    What is the function of a DSL Access DSLAM?

    <p>To transmit the signal from the copper telephone line onto a network backbone</p> Signup and view all the answers

    What is an advantage of using DSL transmission technology?

    <p>It provides an 'always-on' dedicated connection to the Internet</p> Signup and view all the answers

    What type of service is characteristic of SDSL?

    <p>Symmetric service</p> Signup and view all the answers

    What type of users typically use ADSL?

    <p>Residential users who receive a lot of data but do not send much</p> Signup and view all the answers

    What is the function of a DSL modem?

    <p>To access the local telephone company's central office</p> Signup and view all the answers

    What type of broadband access technology is Digital Subscriber Line (DSL)?

    <p>Wire line transmission technology</p> Signup and view all the answers

    What is the purpose of the Centralized NOC and DR site?

    <p>To manage and monitor the MPLS network</p> Signup and view all the answers

    What type of router is used in the Managed IP & MPLS Network?

    <p>MPLS enabled Routers</p> Signup and view all the answers

    What is the connection between the Broadband RAS Projects and the Network?

    <p>Through the MPLS network</p> Signup and view all the answers

    What is the function of the Tier 1 Switch?

    <p>To aggregate ADSL terminals</p> Signup and view all the answers

    What is used for authentication in the Network?

    <p>AAA</p> Signup and view all the answers

    What is the purpose of the DSLAM?

    <p>To aggregate ADSL terminals</p> Signup and view all the answers

    What is connected to the Core router?

    <p>Provisioning</p> Signup and view all the answers

    What is the function of the Test bed Setup?

    <p>To provide proof of concept centre</p> Signup and view all the answers

    What type of services does Broadband Access Network provide?

    <p>Broadband Internet Access and VPN Services</p> Signup and view all the answers

    Which devices are used in Project 2.2 – Broadband Access Network?

    <p>Huawei, UTStarcom and 3Com devices</p> Signup and view all the answers

    What is the purpose of the Broad Band Services?

    <p>Providing Broadcast TV using IP Multicasting service, Multicast video streaming services, Interactive Distant learning, Video on demand, and Interactive gaming service</p> Signup and view all the answers

    What type of network is used in Project 1 – IP / MPLS Core Backbone?

    <p>Managed IP &amp; MPLS Network</p> Signup and view all the answers

    Which companies are awarded Project 2.2 – Broadband Access Network?

    <p>Huawei and UTStarcom (70 : 30 Split)</p> Signup and view all the answers

    What is the function of the Broadband RAS (BRAS)?

    <p>Working as a PE Router for MPLS Core Network</p> Signup and view all the answers

    What type of services are provided by Project 1 – IP / MPLS Core Backbone?

    <p>MPLS-VPN Services and Internet Services</p> Signup and view all the answers

    Which routers are used in Project 1 – IP / MPLS Core Backbone?

    <p>Cisco and Juniper routers</p> Signup and view all the answers

    What is the main objective of the NIB-II project?

    <p>To establish a high-speed internet backbone across the country</p> Signup and view all the answers

    What is the primary feature of the Bandwidth on Demand service?

    <p>User and service configurable bandwidth</p> Signup and view all the answers

    How many projects are involved in the NIB-II implementation?

    <p>Four</p> Signup and view all the answers

    What is the technology used for the Broadband Access Gateway Platform?

    <p>ADSL</p> Signup and view all the answers

    What is the scope of the MPLS-based IP Infrastructure project?

    <p>100 cities</p> Signup and view all the answers

    What is the purpose of the Access Gateway Platform Narrowband?

    <p>To augment existing dialup internet capacity</p> Signup and view all the answers

    What is the scope of the Access Gateway Platform Broadband?

    <p>235 cities</p> Signup and view all the answers

    What is the purpose of the Services Platform?

    <p>To provide a range of services including messaging, provisioning, and billing</p> Signup and view all the answers

    What is a key feature of the BSNL Web Conferencing Service?

    <p>Enables multi-point, multi-media conferencing</p> Signup and view all the answers

    What is the primary benefit of using BSNL Web Conferencing Service?

    <p>Enhances collaboration and increases productivity</p> Signup and view all the answers

    What is required to access the BSNL Web Conferencing Service?

    <p>A PC, Web-cam, and an ADSL Connection</p> Signup and view all the answers

    What is a feature of the Persistent meeting rooms in BSNL Web Conferencing Service?

    <p>Authorized users can enter their designated rooms</p> Signup and view all the answers

    What type of service is ideally suited for users at all levels in large corporate houses, Small and medium businesses, SOHOs, and quality-conscious individuals?

    <p>Web conferencing</p> Signup and view all the answers

    What is another type of content-based service offered by BSNL?

    <p>Education</p> Signup and view all the answers

    How can users access information about BSNL Web Conferencing Service?

    <p>By calling the toll-free number 1800-111-233</p> Signup and view all the answers

    What is an advantage of using BSNL Web Conferencing Service over traditional meeting methods?

    <p>It saves costs and increases productivity</p> Signup and view all the answers

    Study Notes

    What is Broadband?

    • Broadband is an always-on data connection that supports interactive services, including internet access.
    • It has a minimum download speed of 512 kbps to an individual subscriber from the point of presence (POP) of the service provider.
    • Interactive services exclude those that require a separate license, such as real-time voice transmission, except as permitted under ISP licenses with internet telephony.

    Advantages of Broadband

    • Always-on connection (not shared media)
    • Fast (> 512 kbps)
    • No disconnection
    • No additional access charge
    • Telephone and data services can be used simultaneously

    Wired Broadband Technologies

    • Multiple types of broadband access technologies can compete to provide similar services to consumers and businesses.
    • Examples include 100-location managed IP and MPLS networks using MPLS-enabled routers.

    Objectives of NIB-II

    • NIB-II is a mission to build world-class infrastructure that accelerates the internet revolution in India.
    • It provides diversified internet access services, including support for VPN (Layer-2, Layer-3, and Dialup) and broadband services.
    • It offers SLA reports, including security, QoS, and any-to-any connectivity.
    • It offers fully managed services to customers, including bandwidth on demand.
    • The network is capable of online measurement and monitoring of network parameters such as latency, packet loss, jitter, and availability.

    Broadband Multiplay

    • Broadband Multiplay is a triple-play service that provides the following services to customers:
      • Data (Internet)
      • Voice (VoIP)
      • Video (IPTV, VoD, or live broadcast and stored broadcasting using video streaming protocols)

    Components of Broadband Multiplay Project

    • L3PE (MCR/PE Router of NIB-2 Project 1)
    • BNG (Broadband Network Gateway)
    • RPR Tier-1 Switch
    • RPR Tier-2 Switch
    • OC LAN Tier-2 Switch
    • DSLAM
    • DSL Tester
    • Installation-related material

    Features of Broadband Multiplay

    • 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, and IPTV can be easily planned through Multiplay Broadband.

    Broadband Overview

    • Few users of available broadband networks prefer slower, but cheaper options using older technologies like conventional dial-up telephone networks.
    • Existing wired and wireless telephone networks can combine analog, voice services, with digital, data services through retrofitting.
    • 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.

    What is Broadband?

    • TRAI defines Broadband as an always-on data connection that supports interactive services including internet access with a minimum download speed of 512 kbps.
    • The connection is from the point of presence (POP) of the service provider to an individual subscriber.
    • Multiple individual broadband connections are aggregated, and the subscriber can access interactive services including the internet through this POP.

    Advantages of Broadband

    • Always on (not shared media)
    • Fast (> 512 kbps)
    • No disconnection
    • No additional access charge
    • Telephone and Data simultaneously

    Wired Broadband Technologies

    • Digital Subscriber Line (DSL)
    • Cable Modem (CM)
    • Power Line Broadband (BPL)
    • Fiber technology

    Digital Subscriber Line (DSL)

    • DSL is a wireline transmission technology that brings data and information faster over copper telephone lines.
    • Traditional phone service connects homes or businesses 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.

    DSL Transmission Technologies

    • Symmetrical Digital Subscriber Line (SDSL)
      • Used for business applications like video conferencing
      • Equal data rate in both directions (upstream and downstream)
    • Asymmetrical Digital Subscriber Line (ADSL)
      • Used primarily by residential users who receive a lot of data but do not send much
      • Faster speed in a downstream direction (from the telephone central office to the customer's premises) than upstream

    ADSL Standards

    • ADSL: 640 kbps upstream, 8 Mbps downstream, 5.5 Km maximum range
    • ADSL2: 1-1.5 Mbps upstream, 12-16 Mbps downstream, 5.7 Km maximum range
    • ADSL2+: 1 Mbps upstream, 26 Mbps downstream, 5.7 Km maximum range

    BSNL's Broadband Access Technology

    • BSNL uses Asymmetric Digital Subscriber Line (ADSL) Technology for providing broadband connections.
    • 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)

    Services Offered to Broadband Customers

    • Basic Internet Access Service controlled and uncontrolled (512Kbps to 1000Mbps)
    • Bandwidth on Demand (User and or service configurable)

    NIB II Project Details

    • The project involved the implementation of National Internet Backbone-Phase II.
    • The project includes:
      • MPLS based IP Infrastructure
      • Narrowband Access (Dialup Remote Access)
      • Broadband Access (DSL Access)
      • Messaging, Storage, Provisioning, Billing, Security, Order Management, Enterprise Management, AAA, Help Desk, and Inventory Management.

    ADSL Standards

    • ADSL: Upstream rate of 640 kbps, downstream rate of 8 Mbps, maximum range of 5.5 km
    • ADSL2: Upstream rate of 1-1.5 Mbps, downstream rate of 12-16 Mbps, maximum range of 5.7 km
    • ADSL2+: Upstream rate of 1 Mbps, downstream rate of 26 Mbps, maximum range of 5.7 km

    High-Data-Rate Digital Subscriber Line (HDSL)

    • Provides fixed symmetrical high-speed access at T1 rate (1.5 Mbps)
    • Designed for business purposes

    Very High-Data-Rate Digital Subscriber Line (VDSL)

    • Provides both symmetrical and asymmetrical access with very high bit rate over copper lines
    • Deployment is very limited at this time

    BSNL's Broadband Access Technology

    • Built on a world-class, multi-gigabit, multi-protocol, convergent IP infrastructure through National Internet Backbone-II (NIB-II)
    • Uses Asymmetric Digital Subscriber Line (ADSL) technology for providing broadband connections
    • Customer requirements: BSNL's landline connection, computer with 10/100 Mbps Ethernet Card, DSL Modem + Splitter (CPE), PPPoE software, and broadband account (username and password)

    Services Offered to Broadband Customers

    • Basic Internet Access Service (controlled and uncontrolled) with speeds ranging from 512 Kbps to 1000 Mbps
    • Content-based services (Video on Demand, Education, Audio on Demand, etc.)
    • Web conferencing service with features like persistent meeting rooms, multi-point, multi-media conferencing, and data conferencing tools
    • VPN on broadband and bandwidth on demand

    NIB-II Project Details

    • Involves four projects: MPLS-based IP infrastructure, narrowband access, broadband access, and services platform
    • Project 1: MPLS-based IP infrastructure in 100 cities
    • Project 2.1: Narrowband access (dialup remote access)
    • Project 2.2: Broadband access (DSL access)
    • Project 3: Services platform consisting of messaging, provisioning, billing, customer care, enterprise management system, and data centers

    NIB-II Project

    • Project 1: IP/MPLS core backbone with 100 locations managed IP and MPLS network
    • Project 2.1: Narrowband access network with UTStarcom Total Control 1000
    • Project 2.2: Broadband access network with Huawei and UTStarcom (70:30 split)
    • Broadband RAS (BRAS) working as PE router for MPLS core network
    • BRAS present at all 'A' type locations (23 in number)

    Metro Ethernet Project

    • Provides Metro Ethernet broadband connectivity at A1 and A2 locations of NIB2
    • Total 12 routers ordered for Metro Ethernet project
    • 2 routers each at 6 locations for Metro Ethernet project

    Digital Subscriber Line (DSL)

    • DSL is a wire line transmission technology that brings data and information faster over copper telephone lines already installed in homes and businesses.
    • 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, allowing for an "always-on" dedicated connection to the Internet.

    Types of DSL Transmission Technologies

    • Symmetrical Digital Subscriber Line (SDSL): used typically for business applications such as video conferencing, where the data rate in both directions is equal.
    • Asymmetrical Digital Subscriber Line (ADSL): used primarily by residential users who receive a lot of data but do not send much, providing faster speed in a downstream direction (from the telephone central office to the customer's premises) than upstream.

    Content-Based Services

    • Video on Demand (VoD) and Audio on Demand (AoD) are examples of content-based services.
    • BSNL Web Conferencing Service enables virtual meetings with business partners, suppliers, employers, etc. with features such as Persistent meeting rooms and data conferencing tools.

    NIB II Project Details

    • The turnkey implementation of "National Internet Backbone- Phase II" involved four projects: MPLS based IP Infrastructure, Narrowband Access, Broadband Access, and Services Platform.
    • MPLS based IP Infrastructure in 100 cities with 29 city STM-16 core.
    • Access Gateway platform Narrowband (Augmentation of existing Dial-up Internet capacity) and Broadband in 235 cities (Based on ADSL Technology).
    • Services Platform consisting of messaging, Provisioning, billing, customer care, enterprise management system, and Data centres.

    NIB-II Project Components

    • 100 location Managed IP & MPLS Network using MPLS enabled Routers.
    • Centralized NOC and DR site for NMS & PMS.
    • Integration with Narrowband and Broadband RAS Projects and Test bed Setup - Proof of Concept Centre.
    • Network Connectivity, AAA, LDAP, Provisioning, and Core router.

    Broadband Services

    • Broadcast TV using IP Multicasting service.
    • Multicast video streaming services.
    • Interactive distant learning using IP multicasting Services.
    • Video on demand.
    • Interactive gaming service.

    NIB- II Project Components

    • Project 1 – IP / MPLS Core Backbone:

      • 100 location Managed IP & MPLS Network.
      • Awarded to HCL Infosystems Ltd.
      • Network using Cisco and Juniper Routers.
      • 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.

    • 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.

    • Project 2.2 – Broadband Access Network:

      • Network for Providing Broadband Access.
      • 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.

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    Description

    This quiz covers the benefits and capabilities of broadband networks, including their integration with older technologies and existing infrastructure, as well as their reliable and user-friendly access to various services.

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