Extreme Networks Altitude 4700 Series, Руководство по продукции

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Altitude 4700 Series Access Point Product Reference Guide
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For a information overview of the adaptive AP feature as well as how to configure it, refer to “Adaptive
AP” on page 605 .
Rogue AP Detection Enhancement
The Access Point can scan for rogues over all channels on both of the Access Point’s radio bands. The
switching of radio bands is based on a timer with no user intervention required.
For information on configuring the Access Point for Rogue AP support, see “Configuring Rogue AP
Detection” on page 243 .
RADIUS Time-Based Authentication
An external server maintains a users and groups database used by the Access Point for access
permissions. Various kinds of access policies can be applied to each group. Individual groups can be
configured with their own time-based access policy. Each group’s policy has a user defined interval
defining the days and hours access is permitted. Authentication requests for users belonging to the
group are honored only during these defined hourly intervals.
For more information on defining Access Point access policies by group, see “Defining User Access
Permissions by Group” on page 259 .
QBSS Support
Each Access Point radio can be configured to optionally allow the Access Point to communicate channel
usage data to associated devices and define the beacon interval used for channel utilization
transmissions. The QBSS load represents the percentage of time the channel is in use by the Access
Point and the Access Point’s station count. This information is very helpful in assessing the Access
Point’s overall load on a channel, its availability for additional device associations and multi media
traffic support.
For information on enabling QBSS and defining the channel utilization transmission interval, see
“Configuring the 802.11a/n or 802.11b/g/n Radio” on page 174 .
Triple Radio Support
The Altitude 4750 Access Points contains three radios. The third Altitude 4750 radio is never a WLAN
radio. The third radio is either disabled or set to sensor mode. A radio’s mode is called its RF function.
By default, a radio’s RF function is WLAN. A WLAN radio is a traditional Access Point radio that does
not provide WIPS support. When a radio’s RF function becomes WIPS, the radio takes on the role of
what is typically referred to as a sensor.
NOTE
Since the only radio function allowed for the third radio is WIPS, there is no radio 3 submenu in the
Access Point CLI.