110 | Aruba Configuration Reference AirWave Wireless Management Suite | Configuration Guide
3. Click Add or Save. The added or edited profile appears on the Mesh HT SSID page, and on the details page.
Name Blank Enter the name of the profile. This profile name can have a maximum
of 32 characters.
Other Settings
40 MHz Channel Usage Yes Enable or disable the use of 40 MHz channels. This parameter is
enabled by default.
Max Received
A-MPDU Size (bytes)
65535 Set the maximum size of a received aggregate MAC Protocol Data
Unit (A-MPDU), in bytes. The allowed values in AOS 3.4 are 8191,
16383, 32767, or 65535 bytes.
AWMS may support additional options.
Min MPCU Start
Spacing (usec)
8 Set the minimum time between the start of adjacent MPDUs within an
aggregate MPDU, in microseconds.
The allowed values 0 (No restriction on MDPU start spacing), .25
usec, .5 usec, 1 usec, 2 usec, 4 usec, 8 usec, and 16 usec.
High Throughput
Enable (SSID)
Yes Enable or disable high-throughput (802.11n) features on this SSID.
This parameter is enabled by default.
Supported MCS Set 0-15 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 (20MHz vs. 40MHz) and the number of
spatial streams used by the mesh node.
The default value is 1-15; the complete set of supported values. 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.
Enter a list or range of numbers. The overall supported range is from
0-15. The following are two potential examples of supported ranges:
z 2-10
z 1,3,6,9,12
Short Guard Interval in
40 MHz Mode
Yes 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: 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.
Legacy Stations Yes Allow or disallow associations from legacy (non-HT) stations.
This parameter is enabled by default (legacy stations are allowed).
Max Transmitted A-
MPDU Size
65535 Sets maximum size of a transmitted aggregate MPDU, in bytes.
Specify size in the supported range of 1576 to 65535 bytes.
MPDU Aggregation Yes 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.
Table 38 Aruba Configuration > Mesh > Radio > Mesh HT SSID Profile Settings (Continued)
Field Default Description
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