Optimizing wlan, Rejecting wireless clients with low rssi, Enabling fair scheduling – H3C Technologies H3C WX3000E Series Wireless Switches User Manual
Page 210
198
Optimizing WLAN
Proper channel planning and power control policies during WLAN deployment are very important for
good performance. In live WLAN networks, however, channel overlapping, collisions, and interference
can easily occur because the none-overlapping channels are limited but the number of WLAN devices
always increases.
This chapter describes a set of features used to improve the quality and stability of live WLAN networks.
NOTE:
•
A feature applied in different WLANs may have different effects because there are many factors
impacting WLAN performance.
•
There is no fixed combination of features for optimizing a specific WLAN. Select the features most
suitable for your WLAN.
•
The features described in this chapter cannot significantly change the performance of a WLAN. In
practice, if the features used can improve the WLAN performance by 3%, the optimization is considered
successful.
Rejecting wireless clients with low RSSI
Wireless clients whose packets have low received signal strength indicator (RSSI) cannot get good
service or performance but they occupy wireless channels especially when they are downloading huge
amounts of data, affecting other clients with high RSSI.
This task configures an RSSI so that clients whose RSSI is lower than the configured RSSI cannot access the
WLAN.
CAUTION:
This feature disables wireless clients whose RSSI is lower than the specified RSSI from accessing the
WLAN.
To configure the client-reject signal threshold:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure the client-reject
RSSI.
wlan option client-reject rssi
Not configured by default.
Enabling fair scheduling
The fair scheduling feature sends a packet destined to a different client each time to ensure fairness. This
mechanism avoids the situation where some clients occupy the output queues on an AP for a long time
when they are downloading bulky data by using applications such as BT and video on demand.
To enable fair scheduling: