Configuring 802.11G Protection; Enabling 802.11G Protection - H3C MSR Series Configuration Manual

Feature
The configured maximum bandwidth does not take effect on radios enabled with intelligent
bandwidth assurance. To validate the configured maximum bandwidth, you must disable the radios
and then enable them.
Step
1. Enter system view.
2. Enter WLAN RRM view.
3. Configure the maximum
bandwidth.

Configuring 802.11g protection

Enabling 802.11g protection

When both 802.11b and 802.11g clients access a WLAN network, interference easily occurs and
access rate is greatly degraded because they adopt different modulation modes. To enable both
802.11b and 802.11g clients to operate correctly, enable 802.11g protection for an 802.11g device to
send Request to Send/Clear to Send (RTS/CTS) or CTS-to-self (the destination of the CTS packets
is the device that sends them) packets to 802.11b devices, which defer access to the medium.
The following cases require 802.11g protection to be enabled on an 802.11g AP.
•
An 802.11b client associates with the 802.11g AP. In this case, 802.11g protection is always
enabled without manual intervention.
•
The 802.11g AP detects an overlapping 802.11b BSS or some 802.11b packets that are not
destined to it. To enable 802.11g protection, issue the dot11g protection enable command.
To enable 802.11g protection:
Step
1. Enter system view.
2. Enter WLAN RRM view.
3. Enable 802.11g protection.
MSR80 MSR
0 900
MSR800
-10-W
MSR90 MSR
0-E 930
930-W-G
U, and
MSR
930-W-G
T
Command
system-view
wlan rrm
•
802.11b:
dot11b max-bandwidth
11b-bandwidth
•
802.11g:
dot11g max-bandwidth
11g-bandwidth
•
802.11n:
dot11nmax-bandwidth
11n-bandwidth
Command
system-view
wlan rrm
dot11g protection enable
29
MSR
MSR 20
20-1X
SIC_WL SIC_WL
AN AN
module module
that that
supports supports
802.11n 802.11n
Remarks
N/A
N/A
By default:
•
The maximum bandwidth for
802.11b is 7000 kbps.
•
The maximum bandwidth for
802.11g is 30000 kbps.
•
The maximum bandwidth for
802.11n is 180000 kbps.
Configure the maximum
bandwidth close to and smaller
than the upper limit of the actual
traffic.
Remarks
N/A
N/A
Optional.
By default, 802.11g protection is
MSR 30 MSR 50
SIC_WL SIC_WL
AN AN
module module
that that
supports supports
802.11n 802.11n