H3C Technologies H3C MSR 50 - Manual (Page 12)

1-11
k Figure 1-13 Multi-ESS networ
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 Muti-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 1-14 Single ESS Multiple BSS network
This network scenario can be used when both 802.11a and 802.11b/g need to be supported. Figure
1-14 shows two clients connected to different radios belong to the same ESS but different BSSs.
Protocols and Standards
z ANSI/IEEE Std 802.11, 1999 Edition
z IEEE Std 802.11a