Cisco Systems WAP121, WAP321

Single Point Setup

Channel Management

Cisco Small Business WAP121 and WAP321 Wireless-N Access Point with PoE 168

The automatic channel assignment feature is disabled by default. The state of

channel management (enabled or disabled) is propagated to the other devices in

the Single Point Setup cluster.

At a specified interval, the channel manager (that is, the device that provided the

configuration to the cluster) maps all clustered WAP devices to different channels

and measures interference levels of the cluster members. If significant channel

interference is detected, the channel manager automatically reassigns some or all

of the devices to new channels per an efficiency algorithm (or automated channel

plan). If the channel manager determines that a change is necessary, then the

reassignment information is sent to all members of the cluster. A syslog message

is generated as well indicating the sender device and the new and old channel

assignments.

To configure and view the channel assignments for the Single Point Setup

members:

STEP 1 Select the Single Point Setup > Channel Management in the navigation pane.

From the Channel Management page, you can view channel assignments for all

WAP devices in the cluster and stop or start automatic channel management. You

can also use the advanced settings to modify the interference reduction potential

that triggers channel reassignment, change the schedule for automatic updates,

and reconfigure the channel set used for assignments.

STEP 2 To start automatic channel assignment, click Start.

Channel management overrides the default cluster behavior, which is to

synchronize radio channels of all WAP devices that are members of the cluster.

When channel management is enabled, the radio channel is not synchronized

across the c luster to other devi ces.

When automatic channel assignment is enabled, the channel manager periodically

maps radio channels used by WAP devices in a Single Point Setup cluster and, if

necessary, reassigns channels to reduce interference with cluster members or

with devices outside the cluster. The channel policy for the radio is automatically

set to static mode, and the Auto option is not available for the Channel field on the

Wireless > Radio page.

See Viewing Channel Assignments and Setting Locks for information on the

current and proposed channel assignments.

STEP 3 To stop automatic channel assignment, click Stop.