ZyXEL Communications Network Router wireless active fiber router Bedienungsanleitung PDF herunterladen (Seite 144)

Appendix D Wireless LANs

FSG1100HN User’s Guide

144

An ESSID (ESS IDentification) uniquely identifies each ESS. All access points

and their associated wireless stations within the same ESS must have the

same ESSID in order to communicate.

Infrastructure WLAN

Channel

A channel is the radio frequency(ies) used by IEEE 802.11a/b/g wireless

devices. Channels available depend on your geographical area. You may

have a choice of channels (for your region) so you should use a different

channel than an adjacent AP (access point) to reduce interference.

Interference occurs when radio signals from different access points overlap

causing interference and degrading performance.

Adjacent channels partially overlap however. To avoid interference due to

overlap, your AP should be on a channel at least five channels away from a

channel that an adjacent AP is using. For example, if your region has 11

channels and an adjacent AP is using channel 1, then you need to select a

channel between 6 or 11.

RTS/CTS

A hidden node occurs when two stations are within range of the same access

point, but are not within range of each other. The following figure illustrates a

hidden node. Both stations (STA) are within range of the access point (AP) or

1 2 ... 139 140 141 142 143 144 145 146 147 148 149 ... 182 183

Keine Kommentare

ZyXEL Communications Network Router wireless active fiber router Bedienungsanleitung Seite 144