Cisco Cisco Aironet Wireless LAN Client Specifikace Strana 21

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Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Linux
OL-1376-02
Chapter 1 Overview
Network Configurations Using the Client Adapter
Note For examples of more complex network configurations involving client adapters and access points, refer
to the Cisco Aironet Access Point Hardware Installation Guide.
Note See the Configuring Your Client Adapter section on page 3-18 for information on setting the client
adapters network mode.
Ad Hoc Wireless LAN
An ad hoc (or peer-to-peer) wireless LAN (see Figure 1-1) is the simplest wireless LAN configuration.
In a wireless LAN using an ad hoc network configuration, all devices equipped with a client adapter can
be linked together and communicate directly with each other.
Figure 1-1 Ad Hoc Wireless LAN
Wireless Infrastructure with Workstations Accessing a Wired LAN
A microcellular network can be created by placing two or more access points on a LAN. Figure 1-2
shows a microcellular network with workstations accessing a wired LAN through several access points.
This configuration is useful with portable or mobile stations because it allows them to be directly
connected to the wired network even while moving from one microcell domain to another. This process
is transparent, and the connection to the file server or host is maintained without disruption. The mobile
station stays connected to an access point as long as it can. However, once the transfer of data packets
needs to be retried or beacons are missed, the station automatically searches for and associates to another
access point. This process is referred to as seamless roaming.
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