Specifications

DRM Details
Summit WM20 Technical Reference Guide, Software Version 4.2 89
● Dynamic client load balancing across HAPs for Dynamic Radio Management (DRM) client software.
● Advanced features:
● Co-existence with Rogue AP Detection (Summit WM series Spy) feature
● Load balancing even across multi-subnetted HAPs
● Interaction with other APs to reduce co-channel interference. DRM can be configured to avoid co-
channel interference with neighboring WLANs.
DRM Details
DRM provides Dynamic Radio Management and channel selection upon boot up, maximizing the
performance of the WLAN. DRM mitigates the need for extensive and costly site surveys when simple
coverage is not the only requirement.
DRM Power Control
DRM provides two methods of power control for the enterprise. They are called Standard Power control
and Shaped power control. Both methods provide the best possible service while minimizing
interference between APs operating on the same channel.
The following sections describe the two power control modes.
DRM Standard Power Control
DRM Standard RF Power Control provides the best possible service to wireless clients while minimizing
interference between APs operating on the same channel. DRM Standard Power Control dynamically
adjusts power to service the furthest client from the AP. DRM creates a consistent footprint of the cell
while minimizing the traffic present over the entire cell. This feature provides the basis for clients (PCs
or WiFi handsets) to accurately determine when to roam from AP to AP.
The goal of DRM RF Power control is to provide the best possible service to clients associated with the
AP. With the increasing number of 802.11 devices present in the market, and the limited number of
channels to choose from, it is critical for APs to limit their transmit range to the maximum required to
service its clients. Limiting this range maximizes the ability to reuse channels. This feature then
maximizes the number of 802.11 transmitting devices that can successfully operate in an environment.
The following sections describe how DRM Standard RF Power Control works.
Maximizing RF Footprint
DRM Standard Power Control transmits 802.11 management frames at full power creating a maximum
sized RF cell. Management frames include Beacons, Association and Disassociation frames, and Probe
request and responses. Clients use these messages to evaluate the RF environment, establish connections