Dell PowerConnect W-Series Instant Access Point 6.2.0.0-3.2.0.0 | User Guide 43 | Wireless Network
Chapter 4
Wireless Network
In a Wireless LAN (WLAN), laptops, desktops, PDAs, and other computer peripherals are
connected to each other without any network cables. These network elements or clients use radio
signals to communicate with each other. Wireless networks are set up based on the IEEE 802.11
standards. The IEEE 802.11 is a set of standards that are categorized based on the radio wave
frequency and the data transfer rate. For more information about the IEEE 802.11 standards, see
Table 4.
IEEE Network Standard Frequency Used (in GHz)
Maximum Data Transfer Rate
(in Mbps)
802.11a 5.0 54
802.11b 2.4 11
802.11g 2.4 54
802.11n 2.4 or 5.0 300
Table 4 - IEEE 802.11 Standards
During start up, a wireless client searches for radio signals or beacon frames that originate from the
nearest W-IAP. After locating the W-IAP, the following transactions take place between the client
and the W-IAP:
1. Authentication— The W-IAP communicates with a RADIUS server to validate or authenticate
the client.
2. Connection— After successful authentication, the client establishes a connection with the W-
IAP.
Network Types
DellW-Instant wireless networks are categorized as:
l "Employee Network" on page 44
l "Voice Network" on page 53
l "Guest Network" on page 60
NOTE: When a client is associated to the Voice network, all data traffic is marked and
placed into the high priority queue in QoS (Quality of Service). QoS refers to the capability of
a network to provide better service to selected network traffic over various technologies.
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