DSL Connection Case Study.ppt
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DSL Connection Case Study.ppt






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DSL Connection Case Study.ppt DSL Connection Case Study.ppt Presentation Transcript

  • Chapter Making a DSL Connection: Case Study
  • Chapter Objective
    • Describe and demonstrate the following:
      • Obtaining a DSL service from a provider
      • Establish a DSL connection to a single computer
      • Connect a LAN to a DSL line
  • Chapter Modules
    • Basic DSL Information
    • DSL Services
    • DSL Network Installation and Configuration
    • Enhanced and Business DSL Configuration
    • Glossary of Terms
  • Module Basic DSL Information
  • Case Scenario
    • Two different case scenarios will be explored
      • Connect a single computer to a DSL line
      • Connect a LAN to a DSL line
    • Case study will focus on making a connection with PacBell's DSL service
  • DSL Service Partners at SBC Global Network
    • Member of the SBC Global Network
      • Pacific Bell
      • Nevada Bell
      • Southwestern Bell
      • Ameritech
      • SNET
  • Pacific Bell’s DSL Website
    • www.pacbell.com/ dsl
      • For Basic DSL connection details
    • http://public.pacbell.net/dedicated/dsl/index.html
      • For coverage of a number of DSL services
    • There are many similarities in establishing the DSL service by other members of SBC Global Network
    • Information on DSL availability, cost of different types of DSL services etc. can be found in this website
  • Preview of Establishing a DSL Connection
    • Check for availability of DSL connection in the area
      • Checking for availability
    • Obtain a DSL Connection
    • Connect the computer at home to a DSL line
  • Pacific Bell’s Upstream and Downstream Speeds Home Pacific Bell Office Two Fast Track DSL speed offerings are available.
    • 128 Kbps
    • 384 Kbps
    • 384 Kbps up to 1.5 Mbps
    • 1.5 Mbps up to 6 Mbps
    Up Stream Down Stream
  • DSL Line Characteristics
    • Tagged on to a regular phone line
    • Phone line and DSL can be used at the same time
    • Always-on Internet connection
    • Higher bandwidth and speed
    • Point-to-point connection
      • Bandwidth is not shared with others
  • Bandwidth Comparisons with Other Services Source: Pacific Bell DSL Website
  • Line Connection to the Home Source: Pacific Bell DSL Website
  • Glossary
    • PSTN
      • Public Switched Telephone Network
    • POTS
      • Plain Old Telephone Service
    • DSLAM
      • DSL Access Multiplexor
    • ATM
      • Asynchronous Transfer Mode (ATM)
  • Equipment Required for DSL Connection
    • NIC (Network Interface Card)
    • DSL modem
    • Splitter
    • Inside wire
  • Module DSL Services
  • Sample Services and Pricing Click on the table for source.
  • Sample Services and Month-to-Month Pricing Source: Pacific Bell
  • Major DSL Services Example
    • Basic DSL
    • Enhanced DSL
      • For LAN access
    • Business DSL
  • Basic DSL Features Single User Access from Pacific Bell.
  • Basic DSL Connection DSL Modem Computer NIC RJ 45 Regular Cable RJ11 Phone Connection Wall
  • Hardware Installation for External DSL Modem
    • Connect one end of the DSL modem to the phone jack (RJ11)
    • Connect the other end of the DSL modem to a NIC installed in the computer
      • RJ45 type of connection is often required
      • Connect the power supply to the DSL modem
  • Provider Supplied TCP/IP Properties (Static IP Case)
    • One static IP address
    • Subnet mask
    • Gateway IP address
    • Primary DNS server IP address
    • Secondary DNS server IP address
  • Email Configuration Details Provided by PacBell
    • Outgoing SMTP Mail Server
      • mail.pacbell.net
    • Incoming POP3 Mail Server
      • postoffice.pacbell.net
    • Email address
      • [email_address]
  • Other Configuration Details
    • News NNTP Server
      • news.pacbell.net
    • Default home page address
      • http://pacbell.snap.com
    • Personal home page upload location
      • home.pacbell.net/UserID
  • Module DSL Network Installation and Configuration
  • DSL Network Installation Overview
    • First install the Network Interface Card (NIC)
      • Client for Microsoft
      • Adapter
      • Protocol (TCP/IP)
      • Services (If required)
    • Configure the protocol with the settings provided by the ISP
  • Installing on a Computer Already Connected to a LAN
    • If the computer already is connected to a LAN, an additional NIC need to be installed
    • The second NIC is connected to the DSL modem
    • The TCP/IP protocol will be installed on the additional NIC and configured based on the values provided by the ISP
  • Opening the Network ICON Start Settings Control Panel Double-Click On Network Icon
  • Network Property Sheet
  • Adding the Network
  • Adding the Adapter
  • Installed Components *Double-click on TCP/IP for configuring TCP/IP properties.
  • Configure IP Address and Subnet Mask
  • Dynamic IP Addresses
    • The IP addresses need not be configured if they are dynamically assigned by the ISP
  • Dynamic IP Address Assignment
  • Gateway Enter the gateway address and click Add.
  • DNS and Domain Specification
    • Enter host name and domain.
    • Enter primary and secondary DNS server addresses.
  • Summary of Installation Steps
    • Open the network icon
    • Install network adapter
    • Ensure or install TCP/IP
    • Configure TCP/IP properties
    • Restart the computer
    • DSL connection will now become active
    • Check the connection by accessing a website
  • Accessing a Website After Connection
  • Module Enhanced and Business DSL Configuration
  • Enhanced DSL Features LAN Access from Pacific Bell.
  • Enhanced DSL Features (Continued) LAN Access from Pacific Bell.
  • Enhanced DSL Pricing Source: Pacific Bell
  • Business DSL Features Business Access from Pacific Bell.
  • Business DSL Features (Continued) Business Access from Pacific Bell.
  • Business DSL Pricing Business Access from Pacific Bell.
  • Enhanced and Business DSL
    • The major difference from basic DSL is that the advanced services offer more IP addresses
    • Multiple computers can therefore be connected to a single DSL line
  • Enhanced DSL LAN Connection (Multiple IP Addresses) Computer DSL Modem Hub POTS Line NIC Computer NIC Computer NIC UTP (Cat 3 – 5) Crossover Cable UTP (Cat 3 – 5)
  • Enhanced and Business DSL Configuration
    • A hub is needed to connect the various computers to the DSL modem
    • A crossover cable is required to connect the hub to the DSL modem
    • Software configuration is almost similar to the single DSL connection
    • The difference is that each computer will have its own IP address and host name
    • Gateway address, DNS addresses etc. will remain the same
  • Computer 1: IP Address
  • Computer 2: IP Address
  • Computer 1: Host Name
  • Computer 2: Host Name
  • Summary of Steps for Enhanced DSL Connection
    • Connect all the computers to a hub using regular RJ 45 cable
    • Connect the DSL modem to the hub using a crossover RJ 45 cable
    • Install the network adapter in each computer and configure the TCP/IP addresses
    • Each computer will have its own TCP/IP address and host name
  • Configuring the Electronic Mail Client
  • Glossary of Terms Source: PacBell Website
  • Module Glossary of Terms
  • Generic DSL
    • DSL
      • Digital Subscriber Line (DSL) that provides a dedicated digital circuit between a residence and a telephone
    • XDSL
      • A generic terms used for representing digital subscriber line technologies, such as ADSL, HDSL, RADSL etc.
  • Popular Analog and DSL Home Services
    • 56K Standards
      • ITU V.90 (New)
      • X2 and KFlex56 (Old)
    • ADSL
      • Asymmetric Digital Subscriber Line (ADSL)
      • Widely implemented DSL service
      • ADSL Lite is a low speed implementation of ADSL
  • Other DSL Services
    • HDSL
      • High Bit-rate Digital Subscriber Line (HDSL)
      • Increasingly being used in place of T1/E1
    • IDSL
      • A DSL service based on ISDN
      • Initially developed Ascend Communications
    • SDSL
      • Downstream and upstream speeds are the same
      • Symmetric Digital Subscriber Line (SDSL)
      • It is a 2-wire implementation of HDSL
  • Proprietary DSL Services
    • RADSL
      • Rate Adaptive Digital Subscriber Line (RADSL)
      • Often refers to proprietary modulation standard developed by Globespan Semiconductor
    • CDSL
      • Consumer Digital Subscriber Line (CDSL) is a proprietary technology trademarked by Rockwell International.
  • Emerging DSL Service
    • VDSL
      • Very High Bit-rate Digital Subscriber Line (VDSL)
      • This high-speed DSL will operate on shorter local loops not exceeding 3000 ft
  • DSL Modulation Techniques
    • CAP
      • Carrier-less Amplitude/Phase (CAP) modulation
      • The name is derived from the fact that the carrier itself is suppressed in transmission
      • One of two modulation techniques used in ADSL
    • DMT
      • Discrete Multi-Tone (DMT) multi-carrier modulation used in ADSL
      • Uses 256 QAM modulation tones simultaneously to create the ADSL signal
      • ANSI T1.413 is based on this standard
      • Recognized by a number of standard bodies
  • Service Provider Related Terms
    • MSO
      • Multiple service operator
      • Another name for cable service provider.
    • NAP
      • Network Access Point (NAP)
      • A high-speed connection to the new Internet infrastructure given to ISPs
  • POTS Splitter Home Carrier’s Central Office POTS Voice/Data Splitter Also know as low pass/ high pass filter.