User Manual

Table Of Contents
256 QAM feature applies to the 2.4 GHz radio only and the MU-MIMO and 802.11h
features apply to the 5 GHz radios only.
DescriptionSetting
Enter the maximum number of WiFi clients that can simultaneously associate with
the radio. The range is from 1 to 200. The default is 200 WiFi clients.
Max. Wireless Clients
Enter the Request to Send (RTS) threshold. The range is from 256 to 2346. The default
is 2346.
If the packet size is equal to or less than the RTS threshold, the radio uses the Carrier
Sense Multiple Access with Collision Detection (CSMA/CD) mechanism and the data
frame is transmitted immediately after the silence period. If the packet size is larger
than the RTS threshold, the system uses the CSMA with Collision Avoidance
(CSMA/CA) mechanism. In this situation, the transmitting device sends the RTS packet
to the receiving device and waits for the receiving device to return a Clear to Send
(CTS) packet before sending the actual packet data.
RTS Threshold
(256-2346)
Enter an interval between 100 ms and 300 ms for each beacon transmission, which
allows the radio to synchronize the WiFi network. The default is 100 ms.
Beacon Interval
(100-300)
Select the 802.11n 256 QAM check box to enable the 2.4 GHz radio to function
over 256-quadrature amplitude modulation (QAM), which can increase the 2.4 GHz
radio throughput for clients that are capable of supporting 256 QAM. By default, 256
QAM is disabled for the 2.4 GHz radio, that is, the check box is cleared.
By default, 256-QAM is enabled for the 5 GHz radios and you cannot disable it (the
page does not provide check boxes for the 5 GHz radios).
802.11n 256 QAM
Move the slider to specify the delivery traffic indication message (DTIM) interval or
the data beacon rate, which indicates the beacon delivery traffic indication message
period in multiples of beacon intervals. This value must be between 1 and 255. The
default is 2.
DTIM Interval (1-255)
Multicast and broadcast rate limiting is enabled by default to improve the overall
network performance by limiting the number of packets that are transmitted across
the network. By default, the setting is 50 (the maximum possible value), which specifies
a maximum rate limit of 50 packets per second. To change the setting, move the
slider. To disable multicast and broadcast rate limiting, clear the small check box.
Broadcast/Multicast
Rate Limiting
User Manual109Manage the Advanced WiFi and
Radio Features
Insight Managed Smart Cloud Wireless Access Point AC3000 WAC540 User Manual