Dell PowerConnect W-7200 Series Reference Manual page 130

Parameter
legacy-stations
max-tx-a-mpdu-size
max-rx-a-mpdu-size
min-mpdu-start-
spacing
mpdu-agg
short-guard-intvl-
20Mhz
short-guard-intvl-
40Mhz
130 | ap mesh-ht-ssid-profile
Description
background noise.
Allow or disallow associations from legacy (non-HT)
stations. By default, this parameter is enabled (legacy
stations are allowed).
Maximum size of a transmitted aggregate MPDU, in
bytes.
Maximum size of a received aggregate MPDU, in
bytes.
Minimum time between the start of adjacent MPDUs
within an aggregate MPDU, in microseconds.
Enable or disable MAC protocol data unit (MPDU)
aggregation.
High-throughput mesh APs are able to send
aggregated MAC protocol data units (MDPUs), which
allow an AP to receive a single block acknowledgment
instead of multiple ACK signals. This option, which is
enabled by default, reduces network traffic overhead
by effectively eliminating the need to initiate a new
transfer for every MPDU.
Enable or disable use of short (400ns) guard interval for
W-AP130 series APs in 20 MHz mode.
A guard interval is a period of time between
transmissions that allows reflections from the previous
data transmission to settle before an AP transmits data
again. An AP identifies any signal content received
inside this interval as unwanted inter-symbol
interference, and rejects that data.
The 802.11n standard specifies two guard intervals:
400ns (short) and 800ns (long). Enabling a short guard
interval can decrease network overhead by reducing
unnecessary idle time on each AP. Some outdoor
deployments, may, however require a longer guard
interval. If the short guard interval does not allow
enough time for reflections to settle in your mesh
deployment, inter-symbol interference values may
increase and degrade throughput.
This parameter is enabled by default.
Enable or disable use of short (400ns) guard interval in
40 MHz mode.
A guard interval is a period of time between
transmissions that allows reflections from the previous
data transmission to settle before an AP transmits data
again. An AP identifies any signal content received
inside this interval as unwanted inter-symbol
interference, and rejects that data.
The 802.11n standard specifies two guard intervals:
Range
1576 -65535
8191, 16383,
32767, 65535
0 (No
restriction on
MDPU start
spacing), .25
µsec, .5 µsec, 1
µsec, 2 µsec, 4
µsec
Dell PowerConnect W-Series ArubaOS 6.2 | Reference Guide
Default
enabled
0 µsec
enabled
enabled
enabled