Summary

Throughout the course of this chapter, we have discussed the importance of discovering physical issues that may cause errors and collisions on a network. Having learned about speed and duplex configurations and how they affect traffic flow, you now have the essential skills to perform troubleshooting at layer 1 of the OSI reference model.

Additionally, we have covered the essential principles of wireless communication on an IEEE 802.11 network. We have looked in depth at how channels and frequencies all work together to deliver messages between devices. Additionally, we have discussed various Cisco wireless architectures and seen the benefits of using one deployment model over another based on the size of the wireless network. We have also covered the steps required to access and deploy a Cisco WLC on a network.

Now that you have completed this chapter, you should be able to describe various wireless principles such as the operation of channels, RFs, and SSIDs. You also...