Enabling traffic shaping based on link status, Configuring the rate algorithm, Enabling channel sharing adjustment – H3C Technologies H3C WX3000E Series Wireless Switches User Manual
Page 212
200
Enabling traffic shaping based on link status
Clients near an AP have high RSSI while clients at the border of the coverage area of the AP have low
RSSI. When the network is busy, the weak clients occupy the working channel of the AP for a long time
due to their lower speeds and affect the clients with good RSSI.
The traffic shaping feature identifies the weak clients by checking their signal strength and packet loss
ratio, and dynamically controls their packet throughput to reduce their impact to other clients.
To enable traffic shaping:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable traffic shaping based
on link status.
wlan option traffic-shaping enable Disabled by default.
Configuring the rate algorithm
802.11 protocols each support a set of rates. For example, 802.11g supports the rates of 1, 2, 5.5, 11, 6,
9, 12, 18, 24, 36, 48, and 54. An 802.11 protocol dynamic selects a proper rate based on the channel
quality and history data.
A rate algorithm applied on a radio can avoid improper rate adjustments that can impact network
operation. The system supports multiple rate algorithms, including ARR, HDD, HDD2, and LPL. The
default rate algorithm ARR is applicable in various scenarios.
NOTE:
You can configure the rate algorithm only on 802.11a/b/g radios.
To configure the rate algorithm:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure the rate algorithm.
wlan option rate-algorithm { arr
band | hdd | hdd2 | lpl
packet-count up-threshold
down-threshold }
ARR by default.
Enabling channel sharing adjustment
The non-overlapping channels of an 802.11 protocol are very limited. For example, 802.11g has only
three non-overlapping channels. Therefore, an AP can easily detect other APs working on the same
channel, especially in a high-density WLAN. Channel overlapping causes collisions and interference
and reduces WLAN performance. Proper channel planning and power control policies during WLAN
deployment are the major methods to reduce overlapping. In addition, you can perform this task in a live
network to reduce the impact of overlapping.
- H3C WX5500E Series Access Controllers H3C WX3500E Series Access Controllers H3C WX2500E Series Access Controllers H3C WX6000 Series Access Controllers H3C WX5000 Series Access Controllers H3C WX3000 Series Unified Switches H3C LSWM1WCM10 Access Controller Module H3C LSUM3WCMD0 Access Controller Module H3C LSUM1WCME0 Access Controller Module H3C LSWM1WCM20 Access Controller Module H3C LSQM1WCMB0 Access Controller Module H3C LSRM1WCM2A1 Access Controller Module H3C LSBM1WCM2A0 Access Controller Module H3C WA3600 Series Access Points H3C WA2600 Series WLAN Access Points