Parameter Description
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.
To specify a smaller range of values, enter a hyphen
between the lower and upper values. To specify a series of
different values, separate each value with a comma.
Examples:
2–10
1,3,6,9,12
MCS value of 16-23 are supported on OAW-AP130
Series/OAW-RAP155/11ac APs only.
MCS value of 24-31 are supported on OAW-AP320 Series APs
only.
VHT - Supported MCS Map Comma separated list of maximum supported MCS for
spatial streams 1 through 4. Valid values for maximum MCS
are 7, 8, 9, and '-' (if spatial stream is not supported).
Maximum MCS of a spatial stream cannot be higher than the
previous streams. If an MCS is not valid for a particular
combination of bandwidth and number of spatial streams, it
will not be used for Tx and Rx.
Default: 9,9,9,9.
VHT - Transmit Beamforming Sounding Interval Time interval in milliseconds between channel information
updates between the AP and the beamformed client.
Default: 25 msec.
NOTE: This is applicable for 802.11ac-capable APs only.
Table 106: High-Throughput SSID Profile Parameters
AOS-W 6.5.3.x | User Guide Virtual APs | 445
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