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BROADBAND TECHNOLOGIES & SERVICES

PRESENTATION ON BROADBAND

PREPAIRED BY SUBMITTED TO MR.KARMVIR SUNIL KUMAR

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What is Broadband?

• As per TRAI: Broadband is an “An always-on data connection that is able to support interactive services, and has the capability of minimum download speed of 256 kbps”. ADSL technology is used in Broadband

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:Broadband significance:-

Always on (Not on shared media)Fast (speed ranging from 256 kbps to 2 Mbps)No disconnectionNo additional access chargeTelephone and Data simultaneouslyFat pipe has to be continuously supplemented with value added applications to enjoy the advantage

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BROADBAND SERVICES

Digital Subscriber Line (DSL

xDSL Family Tree:-Symmetric DSLProvide identical data rates upstream & downstream

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BROADBAND COMPONENTS

video communication

gaming video

IP VPNBusiness

Residential

Voice over IP

CoreNetwork

Access&

Aggregation

Network

NMS Server

Radius Server

NMS Client

Video Server

User BackendCoreAccess

Soft Switch

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BROADBAND NETWORK ELEMENTS

The Access

The Core

• Wired Access ( DSL, Cable, FTTH)• Wireless ( BWA, Wifi )

• The Media•Optical Fiber

• The Technology• SDH• CWDM / DWDM• ATM • Ethernet

Backend• Authentication Server• Content Servers• Web Hosting Servers• Video Servers

Network Elements – Technology Options

• Corporate / SME / SOHO• Residential User

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CORE TECHNOLOGIES

DSL Technology:

•DSL may offer more than 100times the network performance of a traditional analog modem.•Precise speed of a connection depends upon the type of DSL employed.•DSL uses the same telephone line as traditional modem.•Provides simultaneous access to Web & Telephone removing the need for a second telephone line.•DSL remains always-on all the time

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ADSL Technology• :• Asymmetric Digital Subscriber Line• An ADSL circuit connects an ADSL

modem on each end of a twisted pair telephone line creating three information channels:-

• A high speed downstream channe.l• A medium speed duplex channel for • both upstream & downstream •

applications.• A basic telephone service channel.

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ADSL APPLICATIOS

• ADSLInternet access.

LAN Access (Telecommuting).Distance LearningTele-medicineBroadcast TVHome shopping

Interactive GamesMovies

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Broadband Components

• :-• Customer Premises Equipment(CPE).• Digital Subscriber Line Access Multiplexer (DSLAM).

• OCLAN Switches: for aggregating DSLAM.

• Broadband Remote Access Server (BRAS).

• LDAP.

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COMPONENT DETAILS• ADSL CPEs: At customer premises. On one end it connects telephone cable coming from exchange via splitter. At the other end, it connects to PC through Ethernet / USB Port.

• DSLAM: called as DSL Access Multiplexer. Size of DSLAM vary considerably from 960 Port , 480 Ports , 240 ports, 120 Ports, 64 ports, 48 Ports and 24 ports.

• OCLAN Switch: For aggregating multiple DSLAM and providing a common uplink to the core.

• BRAS: called as Broadband Remote Access Server. First intelligent device in the whole chain. It terminates the customer session, authenticates, allott IP addresses.

• LDAP: It stores customer database viz username, password and the default services that it can subscribe to.

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Requirement at Customer End:-

• Land Line Connection.• PC.• DSL Modem (CPE) + Splitter. • PPPoE software to be loaded in the Client.

• Broadband Account (Username and Password).

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CPE(Customer premises Equipment)

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Product Features

• One RJ 45 and One RJ-11 ports available.

• Supports Bridge and Router mode.• Supports dynamic allocation of IP address.

• High reliability, easy operation and low power consumption.

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PROBLUM &SOLUTIONS• Some common broadband error

codes & remedy:-• 1. Problem: - Error-691: Access was denied because

the user name and/or password was invalid on the domain.

• Description: User id and Password problem.• Remedy: The case is to be referred to Central

Broadband Team. Central Broadband Team will reset the password and intimate that password has been reset.

• 2. Problem: - Error-769: The specified destination is not reachable.

• Description: LAN not enabled.• Remedy: The LAN Card has to be enabled by following

the steps given below:-• i) Click "Properties of My network place”.•

ii) Click "Enable the local network".

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PROBLUM &SOLUTIONS• 3. Problem: - Error-676: The phone line is busy.• Description: Modem setting problem.• .Remedy: Reset the Modem (in on condition) by

pressing button available in the backside hole of the modem and again configure the modem setting.

• 4. Problem: - Error- 630/633• Description: Computer LAN Card problem.• Remedy: Update the LAN card drivers or LAN Card has

to be changed. • 5. Problem: - Error-678: The remote computer did not

respond.• Description: This is most common problems. It is due

to poor connectivity. Problem can be anywhere between B.RAS - Tier 2 - DSLAM – Modem - PC of the customer.

• Remedy: • Switch off / Switch on Modem (Power Switch at the

back of modem) and wait for 2 minutes.

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Wi-Fi security

• Open Internet explorer and type 192.168.1.1 in address bar type user name and password as shown in screen shot.

• Username: - admin

• Password: - admin

•

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Method of providing Wi-Fi security:-

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Services Available through

Broadband:-High speed Internet Access: This is the always-on Internet access service with speed ranging from 256 kbps to 8 Mbps.

Bandwidth on Demand: This will facilitate customer to change bandwidth as per his / her requirement. For example a customer with 256 kbps can change to 1 Mbps during the video Conferencing session.

Multicasting: This is to provide video multicast services for application in distance education, telemedicine etc.

Video and Audio Conferencing.

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Straight-Through Ethernet Cable:-

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RJ-45 Crossover Ethernet Cable

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DSLM View

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METRO ETHERNET CORE

Metro Ethernet Core

Benefits:1. Deployment has started in Huge way across the

world2. Aggregation through Fast Ethernet or Gigabit

Ethernet.3. Highly recommended for high bandwidths

requirements.

Drawbacks:1. Technology getting standardized2. Limited support for VLAN’s.3. Single broadcast domain.

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BROADBAND SERVICES

•Multiple Technology Options for Changing Needs

•Need for multiple service offering

•Focus on Centralized Management and Provisioning

THANK YOU