ZyXEL Communications Corporation VSG1435B101 Manuel D’Utilisation

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VSG1435-B101 Series User’s Guide
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Wireless LANs
Wireless LAN Topologies
This section discusses ad-hoc and infrastructure wireless LAN topologies.
Ad-hoc Wireless LAN Configuration
The simplest WLAN configuration is an independent (Ad-hoc) WLAN that connects 
a set of computers with wireless adapters (A, B, C). Any time two or more wireless 
adapters are within range of each other, they can set up an independent network, 
which is commonly referred to as an ad-hoc network or Independent Basic Service 
Set (IBSS). The following diagram shows an example of notebook computers 
using wireless adapters to form an ad-hoc wireless LAN. 
Figure 196   Peer-to-Peer Communication in an Ad-hoc Network
BSS
A Basic Service Set (BSS) exists when all communications between wireless 
clients or between a wireless client and a wired network client go through one 
access point (AP). 
Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is 
enabled, wireless client A and B can access the wired network and communicate