Wireless/Redundant Edge Services xl Module Management and Configuration Guide WS.02.xx and greater

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Wireless Network Management
Network Self Healing
Note As soon as you enable this feature, every RP disassociates its wireless stations
and begins scanning for neighboring RPs. For this reason, it is particularly
important that you configure self healing when the wireless network is
inactive.
Remember also that any manually defined neighbors for radios are erased
when you click the Detect Neighbors button.
3. To confirm that you want RPs to begin detecting neighbors, click the Yes
button.
After RPs have selected their neighbors, you must define the action that they
will take when a neighbor fails, as described in the next section.
Selecting the Self-Healing Action
The Wireless Edge Services xl Module can configure RPs to take one of several
actions in response to a failed neighbor. A radio can:
■ open its data rates so that it supports both 802.11g and 802.11b stations
For example, one radio in your network might operate in G-only mode
(that is, it supports higher data rates only) while a nearby radio also
supports the lower data rates of 802.11b. You might configure the first
radio to add the lower data rates so that it can support both types of
stations if the second fails.
■ raise its transmit power to the maximum allowable power in your regula-
tory domain
You might have lowered the transmit power because you have placed RPs
close together for denser coverage. Raising the transmit power when one
RP fails increases the chance that stations can receive a good signal from
remaining radios.
In some cases, you may need to configure a self healing offset to prevent
the RP radio from raising its power too high. See “Configuring a Self
Healing Offset” on page 13-98.