1.4 Explain the characteristics and benefits of various WAN technologies
First today, we review packet switching and circuit switching. Then we review all the various ways networks are connected together through WAN technologies.
The switching function provides communication pathways between two endpoints and manages how data flows between them. The two most common switching methods are circuit switching and packet switching.
Integrated Service Digital Network (ISDN), shown in Figure 29-1, is an example of a circuit-switched network. ...