ZyXEL Communications VMG1312-B Series, User Manual

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Chapter 7 Wireless
VMG1312-B Series User’s Guide
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coincident al em it t ers such as elect ric m ot ors or m icrowaves. Problem s wit h absorpt ion occur when
physical obj ect s ( such as t hick walls) are bet ween t he t wo radios, m uffling t he signal.
7.10.5 BSS
A Basic Service Set ( BSS) exist s when all com m unicat ions bet ween wireless st at ions or bet ween a
wireless st at ion and a wired net work client go t hrough one access point ( AP) .
I nt ra- BSS t raffic is t raffic bet ween wireless st at ions in t he BSS. When I nt ra- BSS t raffic blocking is
disabled, wireless st at ion A and B can access t he wired net work and com m unicat e wit h each ot her.
When I nt ra- BSS t raffic blocking is enabled, wireless st at ion A and B can st ill access t he wired
net work but cannot com m unicat e wit h each ot her.
Figure 44
Basic Service set
7.10.6 MBSSID
Tradit ionally, you need t o use different APs t o configure different Basic Service Set s ( BSSs) . As well
as t he cost of buying ext ra APs, t here is also t he possibilit y of channel int erference. The Device’s
MBSSI D ( Mult iple Basic Service Set I Dent ifier) funct ion allows you t o use one access point t o
provide several BSSs sim ult aneously. You can t hen assign varying QoS priorit ies and/ or securit y
m odes t o different SSI Ds.
Wireless devices can use different BSSI Ds t o associat e wit h t he sam e AP.
7.10.6.1 Notes on Multiple BSSs
• A m axim um of eight BSSs are allowed on one AP sim ult aneously.