138 | Aruba Configuration Reference AirWave Wireless Management Suite | Configuration Guide
3. Click Add or Save. The added or edited profile appears on the Profiles > SSID > HT SSID page.
Profiles > SSID > 802.11K
The 802.11k protocol provides mechanisms to APs and clients to dynamically measure the available radio
resources. In a 802.11k enabled network, APs and clients can send neighbor reports, beacon reports, and
link measurement reports to each other. This allows the APs and clients to take appropriate connection
actions. This profile is disabled by default.
Perform these steps to configure an
802.11K profile.
1. Click
Profiles > SSID > 802.11K in the Aruba Navigation pane. The details page summarizes the current
profiles of this type.
2. Click the
Add button to create a new 802.11K profile, or click the pencil icon next to an existing profile to
edit that profile. The
Details page appears. Complete the settings as described in Table 18:
Min MPDU Start
Spacing (usec)
0 Set the minimum time between the start of adjacent MPDUs within an
aggregate MPDU, in microseconds.
Allowed values: 0 (No restriction on MDPU start spacing), 0.25 usec, 0.5 usec,
1 usec, 2 usec, 4 usec.
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.
Examples:
z 2-10
z 1,3,6,9,12
Range: 0-15
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. By default, this
parameter is enabled (legacy stations are allowed).
Allow Weak
Encryption
No Use this setting to define TKIP or WEP encryption for unicast traffic, which
forces legacy transmission rates on high-throughput APs. This option is
disabled by default, preventing clients using TKIP or WEP for unicast traffic
from associating with the mesh node
Table 53 Aruba Configuration > Profiles > SSID > HT SSID Profile Settings (Continued)
Field Default Description
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