Learn Cisco Network Administration in a Month of Lunches

List of Figures

Chapter 2. What is a Cisco network?

Figure 2.1. Switches and a router in a network

Figure 2.2. Computer and two printers connected to a switch

Figure 2.3. An Ethernet frame contains source and destination MAC addresses.

Figure 2.4. Ethernet frame flooding

Figure 2.5. Second switch extending the broadcast domain

Figure 2.6. How the MAC address table mitigates flooding

Figure 2.7. Two broadcast domains

Figure 2.8. Each device has an IP address that corresponds to its broadcast domain.

Figure 2.9. Address Resolution Protocol request and reply

Figure 2.10. A router connecting two broadcast domains. The router has a unique IP and MAC address for each broadcast domain. Notice that Ethernet frames do not traverse the broadcast domain ...