Cisco Router 860, 880 Series User Manual

 
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Chapter 10      Configuring Radio Settings
Configuring the Role in the 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. The default 
fallback role for Cisco ISR wireless devices is:
Shutdown—the wireless device shuts down its radio and...

 
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Cisco 800 Series Integrated Services Routers Wireless Software Configuration Guide
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Chapter 10      Configuring Radio Settings
Configuring Radio Data Rates
Radio Tracking
You can configure the access point to track or monitor the status of one of its radios. If the tracked radio 
goes down or is disabled, the access point shuts down the other radio. If the tracked radio comes up, the 
access point enables the other radio.
 To track radio 0, enter the following command:
# station-role...

 
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Cisco 800 Series Integrated Services Routers Wireless Software Configuration Guide
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Chapter 10      Configuring Radio Settings
Configuring Radio Data Rates
 Disabled—The wireless device does not transmit data at this rate. 
NoteAt least one data rate must be set to basic.
You can use the Data Rate settings to set an access point to serve client devices operating at specific data 
rates. For example, to set the 2.4-GHz radio for 11 megabits per second (Mbps) service only, set the...

 
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Chapter 10      Configuring Radio Settings
Configuring Radio Data Rates
Step 3speed
802.11b, 2.4-GHz radio:
{[1.0] [11.0] [2.0] [5.5] [basic-1.0] 
[basic-11.0] [basic-2.0] [basic-5.5] | 
range | throughput}
802.11g, 2.4-GHz radio:
{[1.0] [2.0] [5.5] [6.0] [9.0] [11.0] 
[12.0] [18.0] [24.0] [36.0] [48.0] 
[54.0] [basic-1.0] [basic-2.0] 
[basic-5.5] [basic-6.0] [basic-9.0] 
[basic-11.0] [basic-12.0]...

 
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Cisco 800 Series Integrated Services Routers Wireless Software Configuration Guide
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Chapter 10      Configuring Radio Settings
Configuring MCS Rates
Use the no form of the speed command to remove one or more data rates from the configuration. This 
example shows how to remove data rates basic-2.0 and basic-5.5 from the configuration:
ap1200# configure terminalap1200(config)# interface dot11radio 0
ap1200(config-if)# no speed basic-2.0 basic-5.5
ap1200(config-if)# end
Configuring MCS...

 
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Cisco 800 Series Integrated Services Routers Wireless Software Configuration Guide
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Chapter 10      Configuring Radio Settings
Configuring MCS Rates
MCS rates are configured using the speed command. The following example shows a speed setting for 
an 802.11g/n 2.4-GHz radio:
interface Dot11Radio0no ip address
no ip route-cache
!ssid 800test
!
speed basic-1.0 2.0 5.5 11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4. 
m8. m9. m10. m11. m12. m13. m14. m15.
3265428 8/960...

 
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Cisco 800 Series Integrated Services Routers Wireless Software Configuration Guide
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Chapter 10      Configuring Radio Settings
Configuring Radio Transmit Power
Configuring Radio Transmit Power
Radio transmit power is based on the type of radio or radios installed in your access point and the 
regulatory domain in which it operates. 
To set the transmit power on access point radios, follow these steps, beginning in privileged EXEC mode:
Use the no form of the power command to return the...

 
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Chapter 10      Configuring Radio Settings
Configuring Radio Channel Settings
Use the no form of the client power command to disable the maximum power level for associated clients. 
NoteAironet extensions must be enabled to limit the power level on associated client devices. Aironet 
extensions are enabled by default.
Configuring Radio Channel Settings
The default channel setting for the wireless device...

 
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Cisco 800 Series Integrated Services Routers Wireless Software Configuration Guide
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Chapter 10      Configuring Radio Settings
Enabling and Disabling World Mode
One of the 20-MHz channels is called the control channel. Legacy clients and 20-MHz high-throughput 
clients use the control channel. Only beacons can be sent on this channel. The second 20-MHz channel 
is called the extension channel. The 40-MHz stations may use this channel and the control channel 
simultaneously. 
A 40-MHz...

 
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Cisco 800 Series Integrated Services Routers Wireless Software Configuration Guide
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Chapter 10      Configuring Radio Settings
Disabling and Enabling Short Radio Preambles
You can also configure world mode to be always on. In this configuration, the access point essentially 
roams between countries, changing its settings as required. 
World mode is disabled by default.
To enable world mode, follow these steps, beginning in privileged EXEC mode:
Use the no form of the command to disable...