TAILIEUCHUNG - Networking: A Beginner’s Guide Fifth Edition- P30

Networking: A Beginner’s Guide Fifth Edition- P30:I have run into many people over the years who have gained good even impressive working knowledge of PCs, operating systems, applications, and common problems and solutions. Many of these people are wizards with desktop computers. | Chapter 10 Connections from Afar Remote Network Access 127 use for quotations you must explain the limitations of modem speeds and telephone or cellular wireless connections to reduce these users expectations. Or you can find different solutions that are consistent with the amount of bandwidth you can offer. You can estimate a particular application program s bandwidth requirements by actually measuring the amount of bandwidth that application uses. On the LAN you can monitor the amount of data being sent to a particular node that uses the application in the way it would be used remotely. You can measure the data in a number of ways. For a Windows PC you can run System Monitor or Performance Monitor on the client and look at the network traffic that the PC is consuming see Figure 10-5 . You can also measure the volume of data from the server. For a Windows server you can use Performance Monitor to measure bytes transmitted to and from the client. For a Novell server you can use the console Monitor application and watch the amount of data being sent and received by the client s server connection. If the bandwidth requirements of an application are simply too great to handle over the type of remote connection that you have available such as a Kbps modem connection you need to explore other alternatives. These include using a remote control solution discussed later in this chapter or using the application in a different way. For example you might load the application onto the remote computer rather than use it across the LAN. Also perhaps the user does not need the data to be updated so frequently and you can set up a procedure whereby the user receives weekly data updates on a CD-R disc or an overnight download. Figure 10-5. Using Windows System Monitor to look at the bandwidth that an application is using 128 Networking A Beginner s Guide The ways that you can satisfy remote access needs are virtually limitless. However the key is to assess those needs .

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