HP MSR SERIES Configuration Manual page 127

Item
Transmit Distance
ANI
Client Max Count
Fragment Threshold
Beacon Interval
RTS Threshold
DTIM Period
Long Retry Threshold
Short Retry Threshold
Max Receive Duration
Description
Maximum coverage of a radio.
Adaptive Noise Immunity (ANI). After the ANI function is enabled, the device
automatically adjusts the noise immunity level according to the surrounding
signal environment to eliminate RF interference.
•
Enable—Enables ANI.
•
Disable—Disables ANI.
Maximum number of clients that can be associated with one radio.
Maximum length of frames that can be transmitted without fragmentation.
When the length of a frame exceeds the specified fragment threshold value, it
is fragmented.
•
In a wireless network where error rate is high, you can decrease the
fragment threshold by a rational value. In this way, when a fragment of a
frame is not received, only this fragment rather than the whole frame needs
to be retransmitted, and thus the throughput of the wireless network is
improved.
•
In a wireless network where no collision occurs, you can increase the
fragment threshold by a rational value to decrease acknowledgement
packets and thus increase network throughput.
Interval for sending beacon frames. Beacon frames are transmitted at a regular
interval to allow mobile clients to join the network. Beacon frames are used for
a client to identify nearby APs or network control devices.
Request to send (RTS) threshold length. If a frame is larger than this value, the
RTS mechanism will be used.
RTS is used to avoid data collisions in a WLAN.
A smaller RTS threshold causes RTS packets to be sent more often, thus
consuming more available bandwidth. However, the more often RTS packets
are sent, the quicker the system can recover from interference or collisions.
In a high-density WLAN, you can decrease the RTS threshold by a rational
value to reduce collisions in the network.
IMPORTANT:
The RTS mechanism occupies bandwidth. Therefore, this mechanism applies only
to data frames larger than the RTS threshold.
Number of beacon intervals between delivery traffic indication message
(DTIM) transmissions. The device sends buffered broadcast/multicast frames
when the DTIM counter reaches 0.
Number of retransmission attempts for unicast frames larger than the RTS
threshold.
Number of retransmission attempts for unicast frames smaller than the RTS
threshold if no acknowledgment is received for it.
Interval for which a frame received by a device can stay in the buffer memory.
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