1.5 Sizing Communications Equipment and Line Facilities


1.5 Sizing Communications Equipment and Line Facilities

During the 1920s, a field of mathematics was developed to assist telephone companies in determining the number of long-distance trunks they should install between their offices to provide subscribers with a predefined capability to make long-distance calls. This field of mathematics is referred to as traffic sizing and is considered to represent a classical application of mathematics.

If we fast-forward to the present time, we find that a key area of concern of Internet service providers (ISPs), network managers, and LAN administrators is to determine how many ports or channels are required on LAN access controllers. A similar question involves determining the number of channels or ports required on a Windows-based server supporting remote access services. For both questions we can use traffic sizing to determine the number of channels or ports, modems, and access lines required to support a given subscriber base, employees that work from home, or customers who access an organization's network. Thus, Chapter 5 focuses attention on the methodology and terminology associated with sizing communications equipment and line facilities. Through the information presented Chapter 5, you can learn how to use the scientific approach to determine the level of support required to provide dial- user access to a network in an economical manner.




Enhancing LAN Performance
Enhancing LAN Performance
ISBN: 0849319420
EAN: 2147483647
Year: 2003
Pages: 111
Authors: Gilbert Held

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