Wlan topologies, Single bss, Multi-ess – H3C Technologies H3C WA2600 Series WLAN Access Points User Manual
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Ethernet to Dot11 Frame Conversion
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Keep Alive Mechanism
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Idle Timeout Mechanism
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Clear Channel Search
WLAN Topologies
WLAN has the following topologies:
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Single BSS
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Multiple ESS
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Single ESS Multiple BSS
Single BSS
Coverage of an access point is called a Basic Service Set (BSS). Each BSS is identified by the BSSID.
The most basic WLAN network can be established with only one BSS. All wireless clients associate with
same BSS. If those clients have same authorization, they can communicate with each other.
shows the single BSS network.
Figure 10-5 Single BSS network
The clients are able to communicate with each other and are also able to reach a host in the Internet.
Communication between clients within the same BSS shall be carried out by the Fat AP.
Multi-ESS
All the clients under the same logical administration form an extended service set (ESS). This
multi-ESS topology describes a scenario where more than one ESS exists. When a mobile client joins
the AP, it can join one of the available ESSs.