O'Reilly logo

CWNA: Certified Wireless Network Administrator Official Study Guide: Exam PW0-105, 3rd Edition by David A. Westcott, David D. Coleman

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 12

WLAN Troubleshooting

In this chapter, you will learn about the following:

Layer 2 retransmissions

RF interference

Multipath

Adjacent channel interference

Low SNR

Mismatched power settings

Near/far

Hidden node

802.11 coverage considerations

Dynamic rate switching

Roaming

Layer 3 roaming

Co-channel interference

Channel reuse/multiple channel architecture

Single channel architecture

Capacity vs. coverage

Oversized coverage cells

Physical environment

Voice vs. data

Performance

Weather

Diagnostic methods that are used to troubleshoot wired 802.3 networks should also be applied when troubleshooting a wireless local area network (WLAN). A bottoms-up approach to analyzing the OSI reference model layers also applies to wireless networking. ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required