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Day 1. Review Detail Charts, Lists, and ... > Day 7: Wireless Standards

Day 7: Wireless Standards

Table 1-22 describes the standards available for wireless connectivity. Table 1-23 describes ad hoc and infrastructure wireless networks.

Table 1-22. IEEE 802.11 Wireless LAN Standards

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Table 1-23. Wireless LAN Installation Modes

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Multiple BSS access points can be connected by a distribution system (DS) to form an extended service set (ESS). To create an ESS, each BSS access point’s range must overlap by 10 percent and have a common Service Set Identifier (SSID). This allows a client to move through the ESS without a loss of signal.

The following key points define the CSMA/CA process and how a client can reserve a channel on a BSS:

• A device on a BSS asks permission from the AP to communicate in the form of a request to send (RTS).


  

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