Users Guide

Table Of Contents
443| Virtual APs Dell Networking W-Series ArubaOS 6.5.x| User Guide
Parameter Description
Max received A-MPDU size Control the maximum size, in bytes, of an Aggregated-MAC
Packet Data Unit (A-MPDU) that can be received on this
high-throughput SSID.
Default: 65535 bytes.
Max transmitted A-MPDU size Control the maximum size, in bytes, of an A-MPDU that can
be sent on this high-throughput SSID.
Range: 1576–65535 bytes.
Min MPDU start spacing Minimum time between the start of adjacent MPDUs within
an aggregate MPDU, in microseconds.
Range: 0 (No restriction on MDPU start spacing), .25 µsec,
.5 µsec, 1 µsec, 2 µsec, 4 µsec.
Default: 0.
Short guard interval in 20 MHz mode Enable or disable use of short (400 ns) guard interval 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: 400 ns
(short) and 800 ns (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.
Default: Enabled.
Short guard interval in 40 MHz mode Enable or disable use of short guard interval (400 ns) in 40
MHz mode of operation.
Default: Enabled.
Short guard interval in 80 MHz mode Enable or disable use of short guard interval (400 ns) in 80
MHz mode of operation.
Default: Enabled.
Supported MCS set A list of Modulation Coding Scheme (MCS) values or ranges
of values to be supported on this SSID. The MCS you choose
determines the channel width (20 MHz vs. 40 MHz vs. 80
MHz) and the number of spatial streams used by the mesh
node.
Range: 0–31.
Default: 0–31.
Table 99: High-Throughput SSID Profile Parameters