Introduction to WAN Technologies

  • Identify the basic characteristics (for example, speed, capacity, media) of the following WAN technologies:

    • Packet switching versus circuit switching

    • ISDN

    • FDDI

    • ATM

    • Frame Relay


    • T1/E1

    • T3/E3

    • OC-x

We'll start our examination of WANs by looking at perhaps the most significant consideration facing anyone who is implementing a WAN: whether to use a public or a private network as a means of connectivity. Both the private and public WAN network services have good and bad points, and knowing the difference between them is a good place to start discussing the characteristics of WANs.

Public Networks

The bottom line for many of the decisions made in networking often has to do with money. This is often true when choosing ...

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