Chapter 6 Wireless
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Intra-BSS traffic is traffic between wireless stations in the BSS. When Intra-BSS traffic blocking is
disabled, wireless station A and B can access the wired network and communicate with each other.
When Intra-BSS traffic blocking is enabled, wireless station A and B can still access the wired
network but cannot communicate with each other.
Figure 41
Basic Service set
6.10.5 MBSSID
Traditionally, you need to use different APs to configure different Basic Service Sets (BSSs). As well
as the cost of buying extra APs, there is also the possibility of channel interference. The Device’s
MBSSID (Multiple Basic Service Set IDentifier) function allows you to use one access point to provide
several BSSs simultaneously. You can then assign varying QoS priorities and/or security modes to
different SSIDs.
Wireless devices can use different BSSIDs to associate with the same AP.
6.10.5.1 Notes on Multiple BSSs
• A maximum of eight BSSs are allowed on one AP simultaneously.
• You must use different keys for different BSSs. If two wireless devices have different BSSIDs (they
are in different BSSs), but have the same keys, they may hear each other’s communications (but
not communicate with each other).
• MBSSID should not replace but rather be used in conjunction with 802.1x security.
