December 2019
Beginner
510 pages
12h 7m
English
Content preview from Networking Fundamentals
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Packet switching
Packet switching was introduced to alleviate some of the issues that were found in circuit switching. Using this method, the data being transferred is broken down into smaller chunks of data called packets. A virtual connection is made between the devices. One of the key differences between packet switching and circuit switching is that there is no fixed path between the devices, and each packet may take a different route. As you can see in Figure 3.11, the first packet (single black line) and the second packet (double black line) have gone different paths. Note that, for clarity, I have not added the double black line for the connection between the devices and the central offices:
Figure 3.11: Packet switching network
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