Chapter 9 Configuring Radio Resource Management

Configuring Dynamic RRM

Table 9-1 RRM Parameters (continued)

Parameter

Description

 

 

 

 

RF Channel Assignment

 

 

 

 

 

Channel Assignment

The controller’s dynamic channel assignment mode.

Method

Options: Automatic, On Demand, or Off

 

 

Default: Automatic

 

 

 

 

Channel

 

 

Assignment

 

 

Method

Description

 

 

 

 

Automatic

Causes the controller to periodically evaluate and, if

 

 

necessary, update the channel assignment for all joined

 

 

access points.

 

 

 

 

On Demand

Causes the controller to periodically evaluate the channel

 

 

assignment for all joined access points. However, the

 

 

controller reassigns channels, if necessary, only when

 

 

you click Invoke Channel Update Now.

 

 

Note The controller does not evaluate and update the

 

 

channel immediately after you click Invoke

 

 

Channel Update Now. It waits for the next

 

 

interval (default is 600 seconds).

 

 

 

 

Off

Prevents the controller from evaluating and, if necessary,

 

 

updating the channel assignment for joined access

 

 

points.

 

 

 

 

Note For optimal performance, Cisco recommends that you use the

 

Automatic setting. Refer to the “Disabling Dynamic Channel

 

and Power Assignment Globally for a Controller” section on

 

page 9-27for instructions if you ever need to disable the

 

controller’s dynamic settings.

 

 

Avoid Foreign AP

Causes the controller’s RRM algorithms to consider 802.11 traffic from

Interference

foreign access points (those not included in your wireless network)

 

when assigning channels to lightweight access points. For example,

 

RRM may adjust the channel assignment to have access points avoid

 

channels close to foreign access points.

 

Options: Enabled or Disabled

 

Default: Enabled

 

 

 

Cisco Wireless LAN Controller Configuration Guide

 

OL-8335-02

9-17

 

 

 

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Cisco Systems OL-8335-02 manual RF Channel Assignment, Default Automatic, Channel Assignment Method Description