H3C MSR Series Configuration Guide

30
Step Command Remarks
disabled.
Enabling 802.11g protection
reduces network performance.
Configuring 802.11g protection mode
802.11g protection modes include RTS/CTS and CTS-to-self.
• RTS/CTS—An AP sends an RTS packet before sending data to a client. After receiving the
RTS packet, all the devices within the coverage of the AP do not send data within the specified
time. Upon receiving the RTS packet, the client sends a CTS packet. This ensures that all the
devices within the coverage of the client do not send data within the specified time.
• CTS-to-Self—An AP uses its IP address to send a CTS packet before it sends data to a client.
This ensures that all the devices within the coverage of the AP do not send data within the
specified time.
To configure the 802.11g protection mode:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter WLAN RRM view.
wlan rrm
N/A
3. Configure the 802.11g
protection mode.
dot11g protection-mode
{
cts-to-self
|
rts-cts
}
Optional.
By default, the 802.11g protection
mode is CTS-to-Self.
Configuring 802.11n protection
The following matrix shows the feature and router compatibility:
Feature
MSR80
0
MSR
900
MSR90
0-E
MSR
930
MSR
20-1X
MSR 20 MSR 30 MSR 50
802.11n
Available
for
MSR800
-W and
MSR800
-10-W
No
Available
for
MSR900
-E-W
Available
for MSR
930-W,
MSR
930-W-G
U, and
MSR
930-W-G
T
Available
for
routers
with a
SIC_WL
AN
module
that
supports
802.11n
Available
for
routers
with a
SIC_WL
AN
module
that
supports
802.11n
Available
for
routers
with a
SIC_WL
AN
module
that
supports
802.11n
Available
for
routers
with a
SIC_WL
AN
module
that
supports
802.11n
Enabling 802.11n protection
When both 802.11n and non 802.11n clients access a WLAN network, interference easily occurs.
The access rate is degraded significantly because they adopt different modulation modes. To enable
both 802.11n and non-802.11n clients to operate correctly, enable 802.11n protection for an 802.11n
device to send RTS/CTS or CTS-to-self (the destination of the CTS packets is the device that sends
them) packets to non-802.11n devices, which then defer access to the medium.
The following cases require 802.11n protection to be enabled an 802.11n AP.

H3C MSR Series Specifications

General

Category	Network Router
IPv6 Support	Yes
Dimensions	Varies by model
Weight	Varies by model
Product Type	Modular Router
Ports	Varies by model
WAN Interfaces	Varies by model
Firewall	Yes
QoS	Yes
Wireless Support	Varies by model
USB Ports	Varies by model
Console Port	Yes
Power Supply	Varies by model
Redundancy	Varies by model
Operating Temperature	0°C to 45°C
Storage Temperature	-40°C to 70°C
Humidity	5% to 95% non-condensing
Series	MSR
Certifications	CE, FCC, RoHS