Users Guide

242 | Secure Enterprise Mesh Dell PowerConnect W-Series ArubaOS 6.1 | User Guide
Assigning a Profile to an AP Group
1. Navigate to the Configuration > Wireless > AP Configuration window. Select either the AP Group or AP
Specific tab.
 If you selected AP Group, click the Edit button by the AP group name to which you want to assign a new
high-throughput SSID profile.
 If you selected AP Specific, click the Edit button by the AP to which you want to assign a new high-
throughput SSID profile
2. Under the Profiles list, expand the Mesh menu, then select Mesh High-throughput SSID profile.
3. In the Profile Details window pane, click the Mesh High-throughput SSID profile drop-down list and select
the desired profile from the list.
4. Click Apply. The profile name appears in the Mesh High-throughput SSID Profile list with your configured
settings. If you configure this for the AP group, this profile also becomes the selected high-throughput SSID
profile used by the mesh portal for your mesh network.
Editing a Profile
1. Navigate to the Configuration > Wireless > AP Configuration window. Select either the AP Group or AP
Specific tab.
 If you selected the AP Group tab, click the Edit button by the AP group name with the profile you want to
edit.
 If you selected the AP Specific tab, click the Edit button by the AP with the profile you want to edit.
2. In the Profiles list, expand the Mesh menu, then select Mesh High-throughput SSID profile.
3. In the Profile Details window pane, click the Mesh High-throughput SSID profile drop-down list and select
the name of the profile you want to edit.
4. Change the settings as desired. Table 44 describes the parameters you can configure in this profile.
5. Click Apply to save your changes.
Short guard interval in 40 MHz
mode
Enable or disable use of short (400ns) guard interval in 40 MHz mode. This parameter is
enabled by default.
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.
Maximum number of spatial
streams usable for STBC
reception
Controls the maximum number of spatial streams usable for STBC reception. 0 disables STBC
reception, 1 uses STBC for MCS 0-7. Higher MCS values are not supported. (Supported on the
W-AP90 Series series, W-AP130 Series, W-AP68, W-AP175 and W-AP105 only. The
configured value will be adjusted based on AP capabilities.)
Maximum number of spatial
streams usable for STBC
transmission.
Controls the maximum number of spatial streams usable for STBC transmission. 0 disables
STBC transmission, 1 uses STBC for MCS 0-7. Higher MCS values are not supported.
(Supported on W-AP90 Series series, W-AP175, W-AP130 Seriesand W-AP105 only. The
configured value will be adjusted based on AP capabilities.)
Legacy stations Allow or disallow associations from legacy (non-HT) stations. By default, this parameter is
enabled (legacy stations are allowed).
Table 44 Mesh High-Throughput SSID Profile Configuration Parameters (Continued)
Parameter Description