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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-30644-01
Chapter6 Configuring Radio Settings
Configuring the Role in Radio Network
You can configure the role of an access point or bridge in a radio network. You can also configure a
fallback role for root access points. The wireless device automatically assumes the fallback role when
its Ethernet port is disabled or disconnected from the wired LAN. There are two possible fallback roles:
•Repeater—When the Ethernet port is disabled, the wireless device becomes a repeater and
associates to a nearby root access point. You do not have to specify a root access point to which the
fallback repeater associates; the repeater automatically associates to the root access point that
provides the best radio connectivity.
•Shutdown—the wireless device shuts down its radio and disassociates all client devices.
Note When configuring a universal workgroup bridge using AES-CCM TKIP, the non-root device should use
only TKIP or AES-CCM TKIP as ciphers in order to associate to the root device. The non-root device
will not associate with the root if it is configured only AES-CCM. This configuration results in a
mismatch in the multicast cipher between the root and non-root devices.
Beginning in privileged EXEC mode, follow these steps to set the wireless device radio network role and
fallback role:
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 interface dot11radio { 0 | 1 } Enter interface configuration mode for the radio interface:
2.4-GHz radio and the 802.11n 2.4-Ghz radio is interface 0.
5-GHz radio and the 802.11n 5-GHz radio is interface 1.