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CWNA®: Certified Wireless Network Administrator Official Study Guide
book

CWNA®: Certified Wireless Network Administrator Official Study Guide

by David D. Coleman, David A. Westcott
April 2009
Intermediate to advanced content levelIntermediate to advanced
765 pages
19h 26m
English
Sybex
Content preview from CWNA®: Certified Wireless Network Administrator Official Study Guide

Chapter 12. WLAN Troubleshooting

IN THIS CHAPTER, YOU WILL LEARN ABOUT THE FOLLOWING:

  • Layer 2 retransmissions

    • RF interference

    • Multipath

    • Adjacent cell 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

WLAN Troubleshooting

As with most networking technologies, most problems usually exist at the Physical layer. Simple layer 1 problems such as nonpowered access points or client card driver problems are ...

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Publisher Resources

ISBN: 9780470438909Purchase book