Aironet PCI4810B Betriebsanweisung PDF herunterladen (Seite 62)

Appendix A: Aironet Wireless LAN Adapter Overview

previously developed for military “anti-jamming” and “low

probability of intercept” radio systems.

The Aironet Access Point must be set to the same Service

Set Identifier (SSID) as all other Aironet devices on the

wireless infrastructure. Units with a different SSID will not

be able to directly communicate with each other.

Terminology

When configuring your system, and when reading this man-

ual, keep in mind the following terminology:

Association: Each root unit or repeater in the infrastructure

contains an association table that controls the routing of

packets between the Access Point and the wireless infra-

structure. The association table maintains entries for all the

nodes situated below the Access Point on the infrastructure

including repeaters and client nodes.

End Node: A client node that is located at the end of the

Network Tree.

Infrastructure: The wireless infrastructure is the communi-

cations system that combines Access Points, mobile nodes

and fixed nodes. Access Points within the infrastructure can

be either root units, which are physically wired to the LAN

backbone, or can act as wireless repeaters. Other RF

enabled devices serve as fixed nodes or mobile client

nodes.

Parent/Child Node: Refers to the relationships between

nodes in the wireless infrastructure. The complete set of

relationships is sometimes described as a Network Tree.

For example, the Access Point (at the top of the tree) would

be the parent of the end nodes. Conversely, the end nodes

would be the children of the Access Point.

Power Saving Protocol (PSP) and Non-Power Saving

Protocol: The Power Saving Protocol allows computers

(usually portable computers) to power up only part of the

time to conserve energy. There are three levels of Power

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Aironet PCI4810B Betriebsanweisung Seite 62