Table Of Contents
Configuring Radio Settings
Enabling the Radio Interface
Configuring the Role in Radio Network
Configuring Dual-Radio Fallback
Radio Tracking
Fast Ethernet Tracking
MAC-Address Tracking
Bridge Features Not Supported
Configuring Radio Data Rates
Configuring Radio Transmit Power
Limiting the Power Level for Associated Client Devices
Configuring Radio Channel Settings
DFS Automatically Enabled on Some 5-GHz Radio Channels
Confirming that DFS is Enabled
Blocking Channels from DFS Selection
Configuring Location-Based Services
Understanding Location-Based Services
Configuring LBS on Access Points
Enabling and Disabling World Mode
Disabling and Enabling Short Radio Preambles
Configuring Transmit and Receive Antennas
Enabling and Disabling Gratuitous Probe Response
Disabling and Enabling Aironet Extensions
Configuring the Ethernet Encapsulation Transformation Method
Enabling and Disabling Reliable Multicast to Workgroup Bridges
Enabling and Disabling Public Secure Packet Forwarding
Configuring Protected Ports
Configuring the Beacon Period and the DTIM
Configure RTS Threshold and Retries
Configuring the Maximum Data Retries
Configuring the Fragmentation Threshold
Enabling Short Slot Time for 802.11g Radios
Performing a Carrier Busy Test
Configuring VoIP Packet Handling
Viewing VoWLAN Metrics
Viewing Voice Reports
Viewing Wireless Client Reports
Viewing Voice Fault Summary
Configuring Voice QoS Settings
Configuring Voice Fault Settings
Configuring Radio Settings
This chapter describes how to configure radio settings for the wireless device. This chapter includes these sections:
•
Enabling the Radio Interface
•Configuring the Role in Radio Network
•Configuring Dual-Radio Fallback
•Configuring Radio Data Rates
•Configuring Radio Transmit Power
•Configuring Radio Channel Settings
•Configuring Location-Based Services
•Enabling and Disabling World Mode
•Disabling and Enabling Short Radio Preambles
•Configuring Transmit and Receive Antennas
•Enabling and Disabling Gratuitous Probe Response
•Disabling and Enabling Aironet Extensions
•Configuring the Ethernet Encapsulation Transformation Method
•Enabling and Disabling Reliable Multicast to Workgroup Bridges
•Enabling and Disabling Public Secure Packet Forwarding
•Configuring the Beacon Period and the DTIM
•Configure RTS Threshold and Retries
•Configuring the Maximum Data Retries
•Configuring the Fragmentation Threshold
•Enabling Short Slot Time for 802.11g Radios
•Performing a Carrier Busy Test
•Configuring VoIP Packet Handling
•Viewing VoWLAN Metrics
Enabling the Radio Interface
The wireless device radios are disabled by default.
Note In Cisco IOS Release 12.3(8)JA there is no default SSID. You must create a Radio Service Set Identifier (SSID) before you can enable the radio interface.
Beginning in privileged EXEC mode, follow these steps to enable the access point radio:
| |
Command
|
Purpose
|
Step 1
|
configure terminal
|
Enter global configuration mode.
|
Step 2
|
interface dot11radio { 0 | 1 }
|
Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
|
Step 3
|
ssid
|
Enter the SSID. The SSID can consist of up to 32 alphanumeric characters. SSIDs are case sensitive.
|
Step 4
|
no shutdown
|
Enable the radio port.
|
Step 5
|
end
|
Return to privileged EXEC mode.
|
Step 6
|
copy running-config startup-config
|
(Optional) Save your entries in the configuration file.
|
Use the shutdown command to disable the radio port.
Configuring the Role in Radio Network
Table 6-1 shows the role in the radio network for each device.
Table 6-1 Device Role in Radio Network Configuration
Role in Radio Network
|
WGB350
|
AP350
|
AP1200
|
AP1100
|
AP1130
|
AP1240
|
Workgroup bridge
|
X
|
-
|
X
|
X
|
X
|
X
|
Root access point
|
-
|
X
|
X
|
X
|
X
|
X
|
Repeater access point
|
-
|
X
|
X
|
X
|
X
|
X
|
Root bridge with clients
|
-
|
-
|
X
|
-
|
-
|
X
|
Non-root bridge with clients
|
-
|
-
|
X
|
-
|
-
|
X
|
Root bridge without clients
|
-
|
-
|
X
|
-
|
-
|
X
|
Non-root bridge without clients
|
-
|
-
|
X
|
-
|
-
|
X
|
Scanner
|
-
|
X
|
X
|
X
|
X
|
X
|
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.
Beginning in privileged EXEC mode, follow these steps to set the wireless device's radio network role and fallback role:
| |
Command
|
Purpose
|
Step 1
|
configure terminal
|
Enter global configuration mode.
|
Step 2
|
interface dot11radio { 0 | 1 }
|
Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
|
Step 3
|
station role
non-root {bridge | wireless-clients}
repeater
root {access-point | ap-only | [bridge | wireless-clients] | [fallback | repeater | shutdown]}
scanner
workgroup-bridge
|
Set the wireless device role.
•Set the role to non-root bridge with or without wireless clients, repeater access point, root access point or bridge, scanner, or workgroup bridge.
•Bridge modes are available only on the 1200 and 1240AG series access points. When in bridge mode, they are interoperable with the 1300 series outdoor access point/bridge only on supported bridge features. See the "Bridge Features Not Supported" section.
•The bridge mode radio supports point-to-point configuration only.
•The Ethernet port is shut down when any one of the radios is configured as a repeater. Only one radio per access point may be configured as a workgroup bridge or repeater.
•The dot11radio 0|1 antenna-alignment command is available when the access point is configured as a repeater.
•A workgroup bridge can have a maximum of 254 clients, presuming that no other wireless clients are associated to the root bridge or access point.
•Spanning Tree Protocol (STP) is configurable on 1200 and 1240AG series access points in bridge modes.
•(Optional) Select the root access point's fallback role. If the wireless device's Ethernet port is disabled or disconnected from the wired LAN, the wireless device can either shut down its radio port or become a repeater access point associated to any nearby root access point.
|
Step 4
|
end
|
Return to privileged EXEC mode.
|
Step 5
|
copy running-config startup-config
|
(Optional) Save your entries in the configuration file.
|
Configuring Dual-Radio Fallback
The dual-radio fallback features allows you to configure access points so that if the non-root bridge link connecting the access point to the network infrastructure goes down, the root access point link through which a client connects to the access point shut down. Shutting down the root access point link causes the client to roam to another access point. Without this feature, the client remains connected to the access point, but won't be able to send or receive data from the network.
Figure 6-1 Dual-Radio Fallback
Note This feature is supported by the dual-radio access points such as AP1240, AP1230, and AP 1130.
Note This feature does not affect the fallback feature for single-radio access points.
You can configure dual-radio fallback in three ways:
•Radio tracking
•Fast Ethernet tracking
•MAC-address tracking
Radio Tracking
You can configure the access point to track or monitor the status of one of its radios. It 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 root access-point fallback track d0 shutdown
•To track radio 1, enter the following command:
# station-role root access-point fallback track d1 shutdown
Fast Ethernet Tracking
You can configure the access point for fallback when its Ethernet port is disabled or disconnected from the wired LAN. You configure the access point for fast Ethernet tracking as described in the "Configuring the Role in Radio Network" section.
Note Fast Ethernet tracking does not support the Repeater mode.
•To configure the access point for fast Ethernet tracking, enter the following command:
# station-role root access-point fallback track fa 0
MAC-Address Tracking
You can configure the radio whose role is root access point to go up or down by tracking a client access point, using its MAC address, on another radio. If the client disassociates from the access point, the root access point radio goes down. If the client reassociates to the access point, the root access point radio comes back up.
MAC-address tracking is most useful when the client is a non-root bridge access point connected to an upstream wired network.
For example, to track a client whose MAC address is 12:12:12:12:12:12, enter the following command:
# station-role root access-point fallback track mac-address 12:12:12:12:12:12 shutdown
Bridge Features Not Supported
The following features are not supported when a 1200 or 1240AG series access point is configured as a bridge:
•Clear Channel Assessment (CCA)
•Interoperability with 1400 series bridge
•Concatenation
•Install mode
•EtherChannel and PageP configuration on switch
Configuring Radio Data Rates
You use the data rate settings to choose the data rates the wireless device uses for data transmission. The rates are expressed in megabits per second. The wireless device 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 wireless device steps down to the highest rate that allows data transmission. You can set each data rate to one of three states:
•Basic (the GUI labels Basic rates as Required)—Allows transmission at this rate for all packets, both unicast and multicast. At least one of the wireless device's data rates must be set to Basic.
•Enabled—The wireless device transmits only unicast packets at this rate; multicast packets are sent at one of the data rates set to Basic.
•Disabled—The wireless device 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 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 11-Mbps rate to Basic and set the other data rates to Disabled. To set the wireless device to serve only client devices operating at 1 and 2 Mbps, set 1 and 2 to Basic and set the rest of the data rates to Disabled. To set the 2.4-GHz, 802.11g radio to serve only 802.11g client devices, set any Orthogonal Frequency Division Multiplexing (OFDM) data rate (6, 9, 12, 18, 24, 36, 48, 54) to Basic. To set the 5-GHz radio for 54 Mbps service only, set the 54-Mbps rate to Basic and set the other data rates to Disabled.
You can configure the wireless device to set the data rates automatically to optimize either the range or the throughput. When you enter range for the data rate setting, the wireless device sets the 1 Mbps rate to basic and the other rates to enabled. The range setting allows the access point to extend the coverage area by compromising on the data rate. Therefore, if you have a client that is not able to connect to the access point while other clients can, one reason may be because the client is not within the coverage area of the access point. In such a case using the range option will help in extending the coverage area and the client may be able to connect to the access point. Typically the tradeoff is between throughput and range. When the signal degrades (possibly due to distance from the access point,) the rates will renegotiate down in order to maintain the link (but at a lower data rate). Contrast that against a link configured for a higher throughput that will simply drop when the signal degrades enough to no longer sustain a configured high data rate, or roam to another access point with sufficient coverage, if one is available. The balance between the two (throughput vs. range) is one of those design decisions that has to be made based on resources available to the wireless project, type of traffic the users will be passing, service level desired, and as always, the quality of the RF environment.When you enter throughput for the data rate setting, the wireless device sets all four data rates to basic.
Note When a wireless network has a mixed environment of 802.11b clients and 802.11g clients, make sure that data rates 1, 2, 5.5, and 11 Mbps are set to required (basic) and that all other data rates are set to enable. The 802.11b adapters do not recognize the 54 Mbps data rate and do not operate if data rates higher than 11Mbps are set to require on the connecting access point.
Beginning in privileged EXEC mode, follow these steps to configure the radio data rates:
| |
Command
|
Purpose
|
Step 1
|
configure terminal
|
Enter global configuration mode.
|
Step 2
|
interface dot11radio { 0 | 1 }
|
Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
|
Step 3
|
speed
These options are available for the 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}
These options are available for the 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] [basic-18.0] [basic-24.0] [basic-36.0] [basic-48.0] [basic-54.0] | range |
throughput [ofdm] | default }
These options are available for the 5-GHz radio:
{[6.0] [9.0] [12.0] [18.0] [24.0] [36.0] [48.0] [54.0] [basic-6.0] [basic-9.0] [basic-12.0] [basic-18.0] [basic-24.0] [basic-36.0] [basic-48.0] [basic-54.0] |
range | throughput |default }
|
Set each data rate to basic or enabled, or enter range to optimize range or throughput to optimize throughput.
•(Optional) Enter 1.0, 2.0, 5.5, and 11.0 to set these data rates to enabled on the 802.11b, 2.4-GHz radio.
Enter 1.0, 2.0, 5.5, 6.0, 9.0, 11.0, 12.0, 18.0, 24.0, 36.0, 48.0, and 54.0 to set these data rates to enabled on the 802.11g, 2.4-GHz radio.
Enter 6.0, 9.0, 12.0, 18.0, 24.0, 36.0, 48.0, and 54.0 to set these data rates to enabled on the 5-GHz radio.
•(Optional) Enter basic-1.0, basic-2.0, basic-5.5, and basic-11.0 to set these data rates to basic on the 802.11b, 2.4-GHz radio.
Enter basic-1.0, basic-2.0, basic-5.5, basic-6.0, basic-9.0, basic-11.0, basic-12.0, basic-18.0, basic-24.0, basic-36.0, basic-48.0, and basic-54.0 to set these data rates to basic on the 802.11g, 2.4-GHz radio.
Note The client must support the basic rate that you select or it cannot associate to the wireless device. If you select 12 Mbps or higher for the basic data rate on the 802.11g radio, 802.11b client devices cannot associate to the wireless device's 802.11g radio.
Enter basic-6.0, basic-9.0, basic-12.0, basic-18.0, basic-24.0, basic-36.0, basic-48.0, and basic-54.0 to set these data rates to basic on the 5-GHz radio.
•(Optional) Enter range or throughput to automatically optimize radio range or throughput. When you enter range, the wireless device sets the lowest data rate to basic and the other rates to enabled. When you enter throughput, the wireless device sets all data rates to basic.
(Optional) On the 802.11g radio, enter speed throughput ofdm to set all OFDM rates (6, 9, 12, 18, 24, 36, and 48) to basic (required) and set all the CCK rates (1, 2, 5.5, and 11) to disabled. This setting disables 802.11b protection mechanisms and provides maximum throughput for 802.11g clients. However, it prevents 802.11b clients from associating to the access point.
•(Optional) Enter default to set the data rates to factory default settings (not supported on 802.11b radios).
On the 802.11g radio, the default option sets rates 1, 2, 5.5, and 11 to basic, and rates 6, 9, 12, 18, 24, 36, 48, and 54 to enabled. These rate settings allow both 802.11b and 802.11g client devices to associate to the wireless device's 802.11g radio.
On the 5-GHz radio, the default option sets rates 6.0, 12.0, and 24.0 to basic, and rates 9.0, 18.0, 36.0, 48.0, and 54.0 to enabled.
|
Step 4
|
end
|
Return to privileged EXEC mode.
|
Step 5
|
copy running-config startup-config
|
(Optional) Save your entries in the configuration file.
|
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 terminal
ap1200(config)# interface dot11radio 0
ap1200(config-if)# no speed basic-2.0 basic-5.5
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 determine what transmit power is available for your access point and which regulatory domain it operates in, refer to the hardware installation guide for that device. hardware installation guides are available at cisco.com. Follow these steps to view and download them:
Step 1 Browse to http://www.cisco.com.
Step 2 Click Technical Support & Documentation. A small window appears containing a list of technical support links.
Step 3 Click Technical Support & Documentation. The Technical Support and Documentation page appears.
Step 4 In the Documentation & Tools section, choose Wireless. The Wireless Support Resources page appears.
Step 5 In the Wireless LAN Access section, choose the device you are working with. An introduction page for the device appears.
Step 6 In the Install and Upgrade section, choose Install and Upgrade Guides. The Install and Upgrade Guides page for the device appears.
Step 7 Choose the hardware installation guide for the device. The home page for the guide appears.
Step 8 In the left frame, click Channels and Antenna Settings.
Table 6-2 shows the relationship between mW and dBm.
Table 6-2 Translation between mW and dBm
dBm
|
-1
|
2
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
mW
|
1
|
2
|
3
|
4
|
5
|
6
|
8
|
10
|
12
|
15
|
20
|
25
|
30
|
40
|
50
|
60
|
80
|
100
|
125
|
150
|
200
|
250
|
Beginning in privileged EXEC mode, follow these steps to set the transmit power on access point radios:
| |
Command
|
Purpose
|
Step 1
|
configure terminal
|
Enter global configuration mode.
|
Step 2
|
interface dot11radio { 0 | 1 }
|
Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
|
Step 3
|
power local
These options are available for the 802.11b, 2.4-GHz radio (in mW):
{ 1 | 5 | 20 | 30 | 50 | 100 | maximum }
These options are available for the 5-GHz radio (in mW):
{ 5 | 10 | 20 | 40 | maximum }
These options are available for the 802.11a, 5-GHz radio (in dBm):
{-1 | 2 | 5 | 8 | 11 | 14 | 15 | 17 | maximum }
If your access point contains an AIR-RM21A 5-GHz radio module, these power options are available (in dBm):
{ -1 | 2 | 5 | 8 | 11 | 14 | 16 | 17 | 20 | maximum }
|
Set the transmit power for the 802.11b, 2.4-GHz radio or the 5-GHz radio to one of the power levels allowed in your regulatory domain.
Note See the hardware installation guide for your access point to determine the power settings for your regulatory domain.
|
Step 4
|
power local
These options are available for the 802.11g, 2.4-GHz radio:
power local cck settings:
{ -1 | 2 | 5 | 8 | 11 | 14 | 17 | 20 | maximum }
power local ofdm settings:
{ -1 | 2 | 5 | 8 | 11 | 14 | 17 |maximum }
|
Set the transmit power for the 802.11g, 2.4-GHz radio to one of the power levels allowed in your regulatory domain. All settings are in mW.
On the 2.4-GHz, 802.11g radio, you can set Orthogonal Frequency Division Multiplexing (OFDM) power levels and Complementary Code Keying (CCK) power levels. CCK modulation is supported by 802.11b and 802.11g devices. OFDM modulation is supported by 802.11g and 802.11a devices.
Note See the hardware installation guide for your access point to determine the power settings for your regulatory domain.
Note The 802.11g radio transmits at up to 100 mW for the 1, 2, 5.5, and 11Mbps data rates. However, for the 6, 9, 12, 18, 24, 36, 48, and 54Mbps data rates, the maximum transmit power for the 802.11g radio is 30 mW.
|
Step 5
|
end
|
Return to privileged EXEC mode.
|
Step 6
|
copy running-config startup-config
|
(Optional) Save your entries in the configuration file.
|
Use the no form of the power command to return the power setting to maximum, the default setting.
Limiting the Power Level for Associated Client Devices
You can also limit the power level on client devices that associate to the wireless device. When a client device associates to the wireless device, the wireless device sends the maximum power level setting to the client.
Note Cisco AVVID documentation uses the term Dynamic Power Control (DTPC) to refer to limiting the power level on associated client devices.
Beginning in privileged EXEC mode, follow these steps to specify a maximum allowed power setting on all client devices that associate to the wireless device:
| |
Command
|
Purpose
|
Step 1
|
configure terminal
|
Enter global configuration mode.
|
Step 2
|
interface dot11radio { 0 | 1 }
|
Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
|
Step 3
|
power client
These options are available for 802.11b, 2.4-GHz clients (in mW):
{ 1 | 5 | 20 | 30 | 50 | 100 | local | maximum}
These options are available for 802.11g, 2.4-GHz clients (in mW):
{ 1 | 5 | 10 | 20 | 30 | 50 | 100 | local | maximum}
These options are available for 5-GHz clients (in mW):
{ 5 | 10 | 20 | 40 | local | maximum }
If your access point contains an AIR-RM21A 5-GHz radio module, these power options are available for 5-GHz clients (in dBm):
{ -1 | 2 | 5 | 8 | 11 | 14 | 16 | 17 | 20 | local | maximum }
|
Set the maximum power level allowed on client devices that associate to the wireless device.
Note The settings allowed in your regulatory domain might differ from the settings listed here.
The local parameter tells the client to set its transmitter power to match the access point's local power setting. This limits the client to the higher OFDM or CCK power set on the access point.
Note The maximum transmit power depends on your regulatory domain and the antenna gain for your access point or bridge. This command requires the client radio to be turned on and enabled to determine the valid power settings configured on your access point.
|
Step 4
|
end
|
Return to privileged EXEC mode.
|
Step 5
|
copy running-config startup-config
|
(Optional) Save your entries in the configuration file.
|
Use the no form of the client power command to disable the maximum power level for associated clients.
Note Aironet 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 radios is least congested; at startup, the wireless device scans for and selects the least-congested channel. For the most consistent performance after a site survey, however, we recommend that you assign a static channel setting for each access point.
Note In places where RF interferrence might be causing clients to occassionally get disconnected from the wirless network, setting the wireless interface to run on a different channel, such as channel 1 (2412), might avoid the interference.
The channel settings on the wireless device correspond to the frequencies available in your regulatory domain. See the access point's hardware installation guide for the frequencies allowed in your domain.
Note Cisco Aironet CB20A client radios sometimes fail to associate to the AIR-RM21A radio module because the CB20A client does not support all the channels supported by the AIR-RM21A radio module. The default channel setting for the AIR-RM21A radio module, least congested, often results in the access point settling on one of these frequencies that the CB20A client radio does not support: channel 149 (5745 GHz), channel 153 (5765 GHz), channel 157 (5785 GHz), and channel 161 (5805 GHz). To avoid this problem, set the channel on the AIR-RM21A radio module to one of the channels supported by the CB20A client.
Each 2.4-GHz channel covers 22 MHz. The bandwidth for channels 1, 6, and 11 does not overlap, so you can set up multiple access points in the same vicinity without causing interference. Both 802.11b and 802.11g 2.4-GHz radios use the same channels and frequencies.
The 5-GHz radio operates on eight channels from 5180 to 5320 MHz. Each channel covers 20 MHz, and the bandwidth for the channels overlaps slightly. For best performance, use channels that are not adjacent (44 and 46, for example) for radios that are close to each other.
Note Too many access points in the same vicinity creates radio congestion that can reduce throughput. A careful site survey can determine the best placement of access points for maximum radio coverage and throughput.
Beginning in privileged EXEC mode, follow these steps to set the wireless device's radio channel:
| |
Command
|
Purpose
|
Step 1
|
configure terminal
|
Enter global configuration mode.
|
Step 2
|
interface dot11radio {0 | 1 }
|
Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
|
Step 3
|
channel
frequency | least-congested
|
Set the default channel for the wireless device radio. Table 6-3 through Table 6-6 show the available channels and frequencies for all radios. To search for the least-congested channel on startup, enter least-congested.
Note The channel command is disabled for 5-GHz radios that comply with European Union regulations on dynamic frequency selection (DFS). See the "DFS Automatically Enabled on Some 5-GHz Radio Channels" section for more information.
|
Step 4
|
end
|
Return to privileged EXEC mode.
|
Step 5
|
copy running-config startup-config
|
(Optional) Save your entries in the configuration file.
|
Table 6-3 shows the available channels and frequencies for the IEEE 802.11b 2.4-GHz radio.
Table 6-3 Channels and Frequencies for IEEE 802.11b 2.4 GHz Radio
Channel Identifier
|
Center Frequency (MHz)
|
Regulatory Domains
|
Americas (-A)
|
China
(-C)
|
EMEA
(-E)
|
Israel
(-I)
|
Japan
(-J)
|
1
|
2412
|
X
|
X
|
X
|
-
|
X
|
2
|
2417
|
X
|
X
|
X
|
-
|
X
|
3
|
2422
|
X
|
X
|
X
|
-
|
X
|
4
|
2427
|
X
|
X
|
X
|
-
|
X
|
5
|
2432
|
X
|
X
|
X
|
X
|
X
|
6
|
2437
|
X
|
X
|
X
|
X
|
X
|
7
|
2442
|
X
|
X
|
X
|
X
|
X
|
8
|
2447
|
X
|
X
|
X
|
X
|
X
|
9
|
2452
|
X
|
X
|
X
|
-
|
X
|
10
|
2457
|
X
|
X
|
X
|
-
|
X
|
11
|
2462
|
X
|
X
|
X
|
-
|
X
|
12
|
2467
|
-
|
-
|
X
|
-
|
X
|
13
|
2472
|
-
|
-
|
X
|
-
|
X
|
14
|
2484
|
-
|
-
|
-
|
-
|
X
|
Table 6-4 shows the available frequencies for the 802.11g 2.4 GHz radio.
Table 6-4 Channels and Available Frequencies for IEEE 802.11g 2.4 GHz Radio
Channel Identifier
|
Center Frequency (MHz)
|
Regulatory Domains
|
Americas (-A)
|
EMEA (-E)
|
Israel (-I)
|
Japan (-J)
|
CCK
|
OFDM
|
CCK
|
OFDM
|
CCK
|
OFDM
|
CCK
|
OFDM
|
1
|
2412
|
X
|
X
|
X
|
X
|
-
|
-
|
X
|
X
|
2
|
2417
|
X
|
X
|
X
|
X
|
-
|
-
|
X
|
X
|
3
|
2422
|
X
|
X
|
X
|
X
|
-
|
-
|
X
|
X
|
4
|
2427
|
X
|
X
|
X
|
X
|
-
|
-
|
X
|
X
|
5
|
2432
|
X
|
X
|
X
|
X
|
X
|
X
|
X
|
X
|
6
|
2437
|
X
|
X
|
X
|
X
|
X
|
X
|
X
|
X
|
7
|
2442
|
X
|
X
|
X
|
X
|
X
|
X
|
X
|
X
|
8
|
2447
|
X
|
X
|
X
|
X
|
X
|
X
|
X
|
X
|
9
|
2452
|
X
|
X
|
X
|
X
|
X
|
-
|
X
|
X
|
10
|
2457
|
X
|
X
|
X
|
X
|
X
|
-
|
X
|
X
|
11
|
2462
|
X
|
X
|
X
|
X
|
X
|
-
|
X
|
X
|
12
|
2467
|
-
|
-
|
X
|
X
|
X
|
-
|
X
|
X
|
13
|
2472
|
-
|
-
|
X
|
X
|
X
|
-
|
X
|
X
|
14
|
2484
|
-
|
-
|
-
|
-
|
-
|
-
|
X
|
-
|
Table 6-5 shows the available channels and frequencies for the RM20A IEEE 802.11a radio
Table 6-5 Channels and Available Frequencies for the RM20A IEEE 802.11a Radio
Channel Identifier
|
Center Frequency (MHz)
|
Regulatory Domains
|
Americas (-A)
|
Japan
|
Singapore (-S)
|
Taowam (-T)
|
34
|
5170
|
-
|
x
|
-
|
-
|
36
|
5180
|
x
|
-
|
x
|
-
|
38
|
5190
|
-
|
x
|
-
|
-
|
40
|
5200
|
x
|
-
|
x
|
-
|
42
|
5210
|
-
|
x
|
-
|
-
|
44
|
5220
|
x
|
-
|
x
|
-
|
46
|
5230
|
-
|
x
|
-
|
-
|
48
|
5240
|
x
|
-
|
x
|
-
|
52
|
5260
|
x
|
-
|
-
|
x
|
56
|
5280
|
x
|
-
|
-
|
x
|
60
|
5300
|
x
|
-
|
-
|
x
|
64
|
5320
|
x
|
-
|
-
|
x
|
Table 6-6 shows the available frequencies for the RM21A and RM22A IEEE 802.11a 5-GHz radios.
Table 6-6 Channels and Available Frequencies for the RM21A and RM22A IEEE 802.11a 5-GHz Radios
Channel ID
|
Center Freq
(MHz)
|
Americas
(-A)
|
China
(-C)
|
EMEA
(-E)
|
Japan
(-J)
|
South
Korea
(-K)
|
North America
(-N)
|
Japan
(-P)
|
Singapore
(-S)
|
Tiawan
(-T)
|
-
|
34
|
5170
|
-
|
-
|
-
|
x
|
-
|
-
|
-
|
-
|
-
|
-
|
36
|
5180
|
x
|
-
|
x
|
-
|
x
|
x
|
x
|
x
|
-
|
-
|
38
|
5190
|
-
|
-
|
-
|
x
|
-
|
-
|
-
|
-
|
-
|
-
|
40
|
5200
|
x
|
-
|
x
|
-
|
x
|
x
|
x
|
x
|
-
|
-
|
42
|
5210
|
-
|
-
|
-
|
x
|
-
|
-
|
-
|
-
|
-
|
-
|
44
|
5220
|
x
|
-
|
x
|
-
|
x
|
x
|
x
|
x
|
-
|
-
|
46
|
5230
|
-
|
-
|
-
|
x
|
-
|
-
|
-
|
-
|
-
|
-
|
48
|
5240
|
x
|
-
|
x
|
|
x
|
x
|
x
|
x
|
-
|
-
|
52
|
5260
|
x
|
-
|
x
|
-
|
x
|
x
|
x
|
x
|
-
|
-
|
56
|
5280
|
x
|
-
|
x
|
-
|
x
|
x
|
x
|
x
|
x
|
-
|
60
|
5300
|
x
|
-
|
x
|
-
|
x
|
x
|
x
|
x
|
x
|
-
|
64
|
5320
|
x
|
-
|
x
|
-
|
x
|
x
|
x
|
x
|
x
|
-
|
100
|
5500
|
-
|
-
|
x
|
-
|
x
|
-
|
-
|
-
|
x
|
-
|
104
|
5520
|
-
|
-
|
x
|
-
|
x
|
-
|
-
|
-
|
x
|
-
|
108
|
5540
|
-
|
-
|
x
|
-
|
x
|
-
|
-
|
-
|
x
|
-
|
112
|
5560
|
-
|
-
|
x
|
-
|
x
|
-
|
-
|
-
|
x
|
-
|
116
|
5580
|
-
|
-
|
x
|
-
|
x
|
-
|
-
|
-
|
x
|
-
|
120
|
5600
|
-
|
-
|
x
|
-
|
x
|
-
|
-
|
-
|
x
|
-
|
124
|
5620
|
-
|
-
|
x
|
-
|
x
|
-
|
-
|
-
|
x
|
-
|
128
|
5640
|
-
|
-
|
x
|
-
|
-
|
-
|
-
|
-
|
x
|
-
|
132
|
5660
|
-
|
-
|
x
|
-
|
-
|
-
|
-
|
-
|
x
|
-
|
|
