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© N. Ganesan, All rights reserved. Chapter Making a DSL Connection: Case Study.

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1 © N. Ganesan, All rights reserved. Chapter Making a DSL Connection: Case Study

2 © N. Ganesan, Ph.D., All Rights Reserved. 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

3 © N. Ganesan, Ph.D., All Rights Reserved. Chapter Modules Basic DSL Information DSL Services DSL Network Installation and Configuration Enhanced and Business DSL Configuration Glossary of Terms

4 © N. Ganesan, All rights reserved. Module Basic DSL Information

5 © N. Ganesan, Ph.D., All Rights Reserved. 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

6 © N. Ganesan, Ph.D., All Rights Reserved. DSL Service Partners at SBC Global Network Member of the SBC Global Network –Pacific Bell –Nevada Bell –Southwestern Bell –Ameritech –SNET

7 © N. Ganesan, Ph.D., All Rights Reserved. Pacific Bell’s DSL Website www.pacbell.com/dsl –For Basic DSL connection details http://public.pacbell.net/dedicated/dsl/ind ex.htmlhttp://public.pacbell.net/dedicated/dsl/ind ex.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

8 © N. Ganesan, Ph.D., All Rights Reserved. Preview of Establishing a DSL Connection Check for availability of DSL connection in the area –Checking for availabilityChecking for availability Obtain a DSL Connection Connect the computer at home to a DSL line

9 © N. Ganesan, Ph.D., All Rights Reserved. Pacific Bell’s Upstream and Downstream Speeds Home Pacific Bell Office Two Fast Track DSL speed offerings are available. 1.128 Kbps 2.384 Kbps 1.384 Kbps up to 1.5 Mbps 2.1.5 Mbps up to 6 Mbps Up Stream Down Stream

10 © N. Ganesan, Ph.D., All Rights Reserved. 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

11 © N. Ganesan, Ph.D., All Rights Reserved. Bandwidth Comparisons with Other Services Source: Pacific Bell DSL WebsitePacific Bell DSL Website

12 © N. Ganesan, Ph.D., All Rights Reserved. Line Connection to the Home Source: Pacific Bell DSL WebsitePacific Bell DSL Website

13 © N. Ganesan, Ph.D., All Rights Reserved. Glossary PSTN –Public Switched Telephone Network POTS –Plain Old Telephone Service DSLAM –DSL Access Multiplexor ATM –Asynchronous Transfer Mode (ATM)

14 © N. Ganesan, Ph.D., All Rights Reserved. Equipment Required for DSL Connection NIC (Network Interface Card) DSL modem Splitter Inside wire

15 © N. Ganesan, All rights reserved. Module DSL Services

16 © N. Ganesan, Ph.D., All Rights Reserved. Sample Services and Pricing Click on the table for source.

17 © N. Ganesan, Ph.D., All Rights Reserved. Sample Services and Month-to- Month Pricing Source: Pacific BellPacific Bell

18 © N. Ganesan, Ph.D., All Rights Reserved. Major DSL Services Example Basic DSL Enhanced DSL –For LAN access Business DSL

19 © N. Ganesan, Ph.D., All Rights Reserved. Basic DSL Features Single User Access from Pacific Bell.

20 © N. Ganesan, Ph.D., All Rights Reserved. Basic DSL Connection DSL Modem Computer NIC RJ 45 Regular CableRJ11 Phone Connection Wall

21 © N. Ganesan, Ph.D., All Rights Reserved. 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

22 © N. Ganesan, Ph.D., All Rights Reserved. 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

23 © N. Ganesan, Ph.D., All Rights Reserved. Email Configuration Details Provided by PacBell Outgoing SMTP Mail Server –mail.pacbell.net Incoming POP3 Mail Server –postoffice.pacbell.net Email address –UserID@pacbell.net

24 © N. Ganesan, Ph.D., All Rights Reserved. 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

25 © N. Ganesan, All rights reserved. Module DSL Network Installation and Configuration

26 © N. Ganesan, Ph.D., All Rights Reserved. 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

27 © N. Ganesan, Ph.D., All Rights Reserved. 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

28 © N. Ganesan, Ph.D., All Rights Reserved. Opening the Network ICON StartSettings Control Panel Double-Click On Network Icon

29 © N. Ganesan, Ph.D., All Rights Reserved. Network Property Sheet

30 © N. Ganesan, Ph.D., All Rights Reserved. Adding the Network

31 © N. Ganesan, Ph.D., All Rights Reserved. Adding the Adapter

32 © N. Ganesan, Ph.D., All Rights Reserved. Installed Components *Double-click on TCP/IP for configuring TCP/IP properties.

33 © N. Ganesan, Ph.D., All Rights Reserved. Configure IP Address and Subnet Mask

34 © N. Ganesan, Ph.D., All Rights Reserved. Dynamic IP Addresses The IP addresses need not be configured if they are dynamically assigned by the ISP

35 © N. Ganesan, Ph.D., All Rights Reserved. Dynamic IP Address Assignment

36 © N. Ganesan, Ph.D., All Rights Reserved. Gateway Enter the gateway address and click Add.

37 © N. Ganesan, Ph.D., All Rights Reserved. DNS and Domain Specification Enter host name and domain. Enter primary and secondary DNS server addresses.

38 © N. Ganesan, Ph.D., All Rights Reserved. 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

39 © N. Ganesan, Ph.D., All Rights Reserved. Accessing a Website After Connection

40 © N. Ganesan, All rights reserved. Module Enhanced and Business DSL Configuration

41 © N. Ganesan, Ph.D., All Rights Reserved. Enhanced DSL Features LAN Access from Pacific Bell.

42 © N. Ganesan, Ph.D., All Rights Reserved. Enhanced DSL Features (Continued) LAN Access from Pacific Bell.

43 © N. Ganesan, Ph.D., All Rights Reserved. Enhanced DSL Pricing Source: Pacific BellPacific Bell

44 © N. Ganesan, Ph.D., All Rights Reserved. Business DSL Features Business Access from Pacific Bell.

45 © N. Ganesan, Ph.D., All Rights Reserved. Business DSL Features (Continued) Business Access from Pacific Bell.

46 © N. Ganesan, Ph.D., All Rights Reserved. Business DSL Pricing Business Access from Pacific Bell.

47 © N. Ganesan, Ph.D., All Rights Reserved. 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

48 © N. Ganesan, Ph.D., All Rights Reserved. Computer Enhanced DSL LAN Connection (Multiple IP Addresses) DSL Modem Hub POTS Line NIC Computer NIC Computer NIC UTP (Cat 3 – 5) Crossover Cable UTP (Cat 3 – 5)

49 © N. Ganesan, Ph.D., All Rights Reserved. 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

50 © N. Ganesan, Ph.D., All Rights Reserved. Computer 1: IP Address

51 © N. Ganesan, Ph.D., All Rights Reserved. Computer 2: IP Address

52 © N. Ganesan, Ph.D., All Rights Reserved. Computer 1: Host Name

53 © N. Ganesan, Ph.D., All Rights Reserved. Computer 2: Host Name

54 © N. Ganesan, Ph.D., All Rights Reserved. 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

55 © N. Ganesan, All rights reserved. Configuring the Electronic Mail Client

56 © N. Ganesan, All rights reserved. Glossary of Terms Source: PacBell Website

57 © N. Ganesan, All rights reserved. Module Glossary of Terms

58 © N. Ganesan, Ph.D., All Rights Reserved. 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.

59 © N. Ganesan, Ph.D., All Rights Reserved. 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

60 © N. Ganesan, Ph.D., All Rights Reserved. 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

61 © N. Ganesan, Ph.D., All Rights Reserved. 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.

62 © N. Ganesan, Ph.D., All Rights Reserved. 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

63 © N. Ganesan, Ph.D., All Rights Reserved. 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

64 © N. Ganesan, Ph.D., All Rights Reserved. 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

65 © N. Ganesan, Ph.D., All Rights Reserved. Home Carrier’s Central Office POTS Splitter POTS Voice/Data Splitter Also know as low pass/ high pass filter.

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