User's Manual

4-4
Cisco 3200 Series Wireless MIC Software Configuration Guide
OL-7734-02
Chapter 4 Configuring Radio Settings
Configuring Radio Data Rates
Configuring the WMIC as a Bridge
The WMIC can be configured as a bridge. This is the only role that supports the distance command.
There are three install modes: automatic, root, and non-root:
Automatic activates the bridge install and alignment mode, and specifies that the unit automatically
determines the network role. If the unit is able to associate to another Cisco root bridge within 60
seconds, the unit assumes a non-root bridge role. If the unit is unable to associate with another Cisco
root bridge within 60 seconds, the unit assumes a root bridge role. The device can be configured into
root bridge or non-root bridge modes to avoid the 60-second automatic detection phase.
Root specifies that the device is operating as a root bridge and connects directly to the main Ethernet
LAN network. In this mode, the unit accepts associations from other Cisco bridges and wireless client
devices.
Non-root specifies that the device is operating as a non-root bridge, and that it connects to a remote LAN
network, and that it must associate with a Cisco root bridge by using the wireless interface.
Follow these steps to configure the WMIC to determine is role automatically:
Configuring Radio Data Rates
You use the data rate settings to choose the data rates the 4.9-GHz (US Only, Public Safety) WMIC uses
for data transmission. The rates are expressed in megabits per second. The WMIC always attempts to
transmit at the highest data rate set to Basic, also called Require on the browser-based interface. If there
are obstacles or interference, the WMIC steps down to the highest rate that allows data transmission. You
can set each data rate to one of three states:
• Basic (this is the default state for all data rates)—Allows transmission at this rate for all packets,
both unicast and multicast. At least one of the WMIC's data rates must be set to Basic.
• Enabled—The WMIC transmits only unicast packets at this rate; multicast packets are sent at one
of the data rates set to Basic.
• Disabled—The WMIC does not transmit data at this rate.
Note At least one data rate must be set to basic.
You can use the Data Rate settings to set up the WMIC to operate at specific data rates. For example, to
configure the WMIC to operate at 54 megabits per second (Mbps) service only, set the 54-Mbps rate to
Basic and set the other data rates to Enabled. To set up the WMIC to operate at 24, 48, and 54 Mbps,
set 24, 48, and 54 to Basic and set the rest of the data rates to Enabled.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface dot11radio 0 Enter interface configuration mode for the radio interface.
Step 3
station-role install automatic Specifies that role of the WMIC is chosen based on the device
to which it is associated.
Step 4
end Return to privileged EXEC mode.
Step 5
copy running-config startup-config (Optional) Save your entries in the configuration file.