Concept Guide

762| rf ht-radio-profile Dell Networking W-Series ArubaOS 6.5.x| Reference Guide
Parameter Description Range Default
diversity-spreading-workaround
When this feature is enabled, all
legacy transmissions will be sent
using a single antenna. This enables
interoperability for legacy or high-
throughput stations that cannot
decode 802.11n cyclic shift diversity
(CSD) data.
This feature is disabled by default and
should be kept disabled unless
necessary.
disabled
Usage Guidelines
The ht-radio-profile configures high-throughput settings for networks utilizing the IEEE 802.11n standard,
which supports 40 MHZ channels and operates in both the 2.4 GHZ and 5 GHZ frequency bands.
Most transmissions to high throughput (HT) stations are sent through multiple antennas using cyclic shift
diversity (CSD). When you enable the single-chain-legacydisable-diversity-spreadingparameter, CSD is disabled
and only one antenna transmits data, even if they are being sent to high-throughput stations. Use this feature
to turn off antenna diversity when the AP must support legacy clients such as Cisco 7921g VoIP phones, or
older 802.11g clients (e.g. Intel Centrino clients). Note, however, that enabling this feature can reduce overall
throughput rates.
The ht-radio-profile you wish to use must be assigned to a dot11a and/or dot11g-radio-profile. You can assign
the same profile or different profiles to the 2.4 GHZ and 5 GHZ frequency bands. See rf dot11a-radio-profile
on page 733 and rf dot11g-radio-profile on page 744.
Example
The following command configures an ht-radio-profile named “default-g” and enables 40MHz-intolerance:
(host) (config) #rf ht-radio-profile default-g
40MHz-intolerance
Command History
Release Modification
ArubaOS 3.0 Command introduced
ArubaOS 3.3.2 Support for the dsss-cck-40mhz parameterwas removed
ArubaOS 3.4 Introduced the single-chain-legacy parameter.
ArubaOS 6.2 The single-chain-legacy parameter was renamed to diversity-
spreading-workaround.