May 2012
Intermediate to advanced
768 pages
21h 7m
English
book
CWNA: Certified Wireless Network Administrator Official Study Guide: Exam PW0-105, 3rd Edition
by David D. Coleman, David A. Westcott
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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. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.