Extreme Networks Summit WM20, User Manual

Page: 56 / 270

Configuring the Wireless AP
Summit WM20 User Guide, Software Release 4.2
56
NOTE
In order to comply with FCC regulations in North America, the U-NII Low Band (5.15 to 5.25 GHz band) is disabled
for the Altitude 350-2 Detach. (15939).
Wireless AP Radios
The Wireless AP has two radios:
●
5 GHz radio supporting the 802.11a standard – The 802.11a standard is an extension to 802.11 that
applies to wireless LANs and provides up to 54 Mbps in the 5-GHz band. The 802.11a standard uses
an orthogonal frequency division multiplexing encoding scheme, rather than Frequency-Hopping
Spread Spectrum (FHSS) or Direct-Sequence Spread Spectrum (DSSS).
●
2.4 GHz radio supporting the 802.11b/g standards – The 802.11g standard applies to wireless LANs
and specifies a transmission rate of 54 Mbps. The 802.11b (High Rate) standard is an extension to
802.11 that specifies a transmission rate of 11 Mbps. Since 802.11g uses the same communication
frequency range as 802.11b (2.4 GHz), 802.11g devices can co-exist with 802.11b devices on the same
network.
The radios on the Wireless AP are enabled or disabled through the Summit WM GUI. Both radios can
be enabled to offer service simultaneously. For more information, see
“Topology for a WM-AD” on
page 98 .
The Unlicensed National Information Infrastructure (U-NII) bands are three frequency bands of 100
MHz each in the 5 GHz band, designated for short-range, high-speed, wireless networking
communication.
The Wireless AP supports the full range of 802.11a:
●
5.15 to 5.25 GHz – U-NII Low Band
●
5.25 to 5.35 GHz – U-NII Middle Band
●
5.725 to 5.825 GHz – U-NII High Band
●
New 5.470 GHz to 5.725 GHz Band (when approved by FCC)
Wireless AP International Licensing
Wireless APs are licensed to operate in North America, Japan, the European Union countries, and
European Union free trade countries. Each European Union country is assigned a particular radio band.
The Wireless AP must be configured to operate on the appropriate radio band according to each
European Union country. For more information, see
“European Community” on page 247 .
To configure the appropriate radio band according to each European Union country, use the Summit
WM GUI. For more information, see
“Modifying a Wireless AP’s Properties” on page 68 .
Discovery and Registration Overview
When the Wireless AP is powered on, it automatically begins a discovery process to determine its own
IP address and the IP address of the Summit WM Controller. When the discovery process is successful,
the Wireless AP registers with the Summit WM Controller.