ZyXEL Communications P8701T Guía de usuario descargar pdf (Pagina 189)

Chapter 14 Wireless

Basic Home Station VDSL2 P8701T User’s Guide

189

Many types of encryption use a key to protect the information in the wireless network. The longer

the key, the stronger the encryption. Every device in the wireless network must have the same key.

14.7.4 Signal Problems

Because wireless networks are radio networks, their signals are subject to limitations of distance,

interference and absorption.

Problems with distance occur when the two radios are too far apart. Problems with interference

occur when other radio waves interrupt the data signal. Interference may come from other radio

transmissions, such as military or air traffic control communications, or from machines that are

coincidental emitters such as electric motors or microwaves. Problems with absorption occur when

physical objects (such as thick walls) are between the two radios, muffling the signal.

14.7.5 BSS

A Basic Service Set (BSS) exists when all communications between wireless stations or between a

wireless station and a wired network client go through one access point (AP).

Intra-BSS traffic is traffic between wireless stations in the BSS. When Intra-BSS traffic blocking is

disabled, wireless station A and B can access the wired network and communicate with each other.

When Intra-BSS traffic blocking is enabled, wireless station A and B can still access the wired

network but cannot communicate with each other.

Figure 81 Basic Service set

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ZyXEL Communications P8701T Guía de usuario Pagina 189