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To do...
4.
Specify the maximum MCS
index for 802.1 1n supported
rates.
If you configure the client dot1 1n-only command for a radio, you must configure the maximum MCS index for
802.1 1n mandatory rates.
The following matrix shows the feature and router compatibility:
Feature
802.11n
Configuring non-dot11h channel scanning
To configure non-dot1 1h channel scanning:
To do...
1.
Enter system view.
2.
Enter WLAN RRM view.
3.
Configure non-802.1 1h
channel scanning.
Enabling 802.11g protection
When both 802.1 1b and 802.1 1g clients access a WLAN network, interference easily occurs and access rate
is greatly degraded because they adopt different modulation modes. To enable both 802.1 1b and 802.1 1g
clients to operate properly, 802.1 1g protection needs to be enabled for an 802.1 1g device to send RTS/CTS
or CTS-to-self packets to 802.1 1b devices, which defer access to the medium.
Either of the following cases can start 802.1 1g protection on an 802.1 1g AP.
An 802.11b client associates with the 802.11g AP. In this case, 802.11g protection is always
1.
enabled.
The 802.11g AP detects an overlapping 802.11b BSS or some 802.11b packets that are not
2.
destined to it. For this case, you can use the following command to enable 802.11g protection or
disable it using the undo form of the command.
To enable 802.1 1g protection:
To do...
1.
Enter system view.
Use the command...
dot11n support maximum-mcs index
A-MSR900
A-MSR20-1X
Available for
routers with a
SIC_WLAN
No
module that
supports
802.11n
Use the command...
system-view
wlan rrm
autochannel-set avoid-dot11h
Use the command...
system-view
A-MSR20
A-MSR30
Available for
Available for
routers with a
routers with a
SIC_WLAN
SIC_WLAN
module that
module that
supports
supports
802.11n
802.11n
Remarks
—
—
Optional.
By default, all channels of the
country code are scanned.
Remarks
—
26
Remarks
Optional.
By default, the maximum MCS
index for 802.11n supported
rates is 76.
A-MSR50
Available for
routers with a
SIC_WLAN
module that
supports
802.11n
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