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Multi-ESS
This topology describes a scenario where more than one ESS exists. When a mobile client joins the fat AP,
it can join one of the available ESSs.
Figure 6
shows a multi-ESS network.
Figure 6
Multi-ESS network
Generally a fat AP can provide more than one logical ESS at the same time. The fat AP can broadcast the
current information of ESS by beacon or probe response frames. Clients can select an ESS it is interested to
join.
Different ESS domains can be configured on the fat AP. The fat AP can be configured to accept clients in
these ESS domains once their credentials are acceptable.
Single ESS Multi-BSS (the multi-radio case)
This topology describes a scenario where a fat AP has two radios that are in the same ESS but belong to
different BSSs.
Figure 7
Single ESS multiple BSS network
Use this network scenario when both 802.11a and 802.11b/g need to be supported.
Figure 7
shows two
clients connected to different radios belong to the same ESS but different BSSs.
FAT AP
Gateway
Client1
Client 2
Internet
ESS 1
ESS 2
FAT AP
Gateway
Client 2
Internet
Radio 2
Radio 1
Client 1
ESS 1
ESS 1
BSS 2
BSS 1
Содержание a-msr
Страница 48: ...44 Figure 19 Configure the wireless card I ...
Страница 49: ...45 Figure 20 Configure the wireless card II ...