User Manual

Appendix E: Glossary

Bridge

E-6

Psion Teklogix 9160 Wireless Gateway User Manual

•The Beacon interval defines the amount of time between transmitting

beacon frames. Before entering power save mode, a station needs the

beacon interval to know when to wake up to receive the beacon.

•The Capability Information lists requirements of stations that want to join

the WLAN. For example, it indicates that all stations must use WEP.

•The Service Set Identifier (SSID).

•The Basic Rate Set is a bitmap that lists the rates that the WLAN supports.

• The optional Parameter Sets indicates features of the specific signalling

methods in use (such as frequency hopping spread spectrum, direct

sequence spread spectrum, etc.).

• The optional Traffic Indication Map (TIM) identifies stations, using power

saving mode, that have data frames queued for them.

Bridge

A connection between two local area networks (LANs) using the same protocol,

such as Ethernet or IEEE 802.1x.

Broadcast

A Broadcast sends the same message at the same time to everyone. In wireless

networks, broadcast usually refers to an interaction in which the access point sends

data traffic in the form of IEEE 802.1x Frames to all client stations on the network.

Some wireless security modes distinguish between how unicast, multicast, and

broadcast frames are encrypted or whether they are encrypted.