CISCO 9100 Series Catalyst Access Points User Guide
OFDMA Support for 11ax Access Points
- Information About OFDMA Support for 11ax Access Points, on page 1
- Configuring 11AX (GUI), on page 2
- Configuring Channel Width, on page 2
- Configuring 11ax Radio Parameters (GUI), on page 3
- Configuring 11ax Radio Parameters (CLI), on page 3
- Setting up the 11ax Radio Parameters, on page 4
- Configuring OFDMA on a WLAN, on page 5
- Verifying Channel Width, on page 6
- Verifying Client Details, on page 7
- Verifying Radio Configuration, on page 8
Information About OFDMA Support for 11ax Access Points
The Cisco Catalyst 9100 series access points are the next generation WiFi 802.11ax access point, which is ideal for high-density high-definition applications.
The IEEE 802.11ax protocol aims to improve user experience and network performance in high density deployments for both 2.4 GHz and 5 GHz. The 802.11ax APs supports transmission or reception to more than one client simultaneously using Orthogonal Frequency Division Multiplexing (OFDMA).
The IEEE 802.11ax supports uplink MU-MIMO and also adds OFDMA for multiple users in the uplink and downlink. All the users in IEEE 802.11ax OFDMA have the same time allocations and it ends at the same time. In MU-MIMO and OFDMA, multiple stations (STAs) either simultaneously transmit to a single STA or simultaneously receive from a single STA independent data streams over the same radio frequencies.
Supported Modes on 11ax Access Points
The following AP modes are supported:
- Local mode
- Flex-connect mode
- Bridge mode
- Flex+Mesh mode
Configuring 11AX (GUI)
You can configure 11ax for the frequencies, 5 GHz and 2.4 GHz.
Procedure
Step 1 Choose Configuration > Radio Configurations > High Throughput.
Step 2 Click the 5 GHz Band tab.
- Expand the 11ax
- Select the Enable 11ax and Multiple Bssid check boxes, if
- Check either the Select All check box to configure all the data rates or select the desired options from the available data rates list.
Step 3 Click the 2.4 GHz Band tab.
- Expand the 11ax
- Select the Enable 11ax and Multiple Bssid check boxes, if
- Check either the Select All check box to configure all the data rates or select the desired options from the available data rates list.
Configuring Channel Width
Procedure
| Command or Action | Purpose | |
| Step 1 | configure terminal
Example: Device# configure terminal |
Enters the global configuration mode. |
| Step 2 | ap dot11{24ghz|5ghz}rrm channel dca chan-width 160
Example: Device(config)# ap dot11 5ghz rrm channel dca chan-width 160 |
Configures channel width for 802.11 radios as 160.
Use the no form of the command to disable the configuration. Note Cisco Catalyst 9115 and C9120 series APs do not support 80+80 channel width. Cisco Catalyst 9117 series APs do not support OFDMA in 160 channel width. |
| Step 3 | ap dot11{24ghz|5ghz}rf-profile profile-name
Example: |
Configures an RF profile and enters RF profile configuration mode. |
| Command or Action | Purpose | |
| Device(config)# ap dot11 5ghz rf-profile ax-profile | ||
| Step 4 | channel chan-width 160
Example: Device(config-rf-profile)# channel chan-width 160 |
Configures the RF profile DCA channel width. |
Configuring 802.11ax Radio Parameters (GUI)
Procedure
Step 1 Choose Configuration > Radio Configurations > High Throughput > 5 GHz Band > 11ax.
Step 2 Check or uncheck the Enable 11 n check box.
Step 3 Check the check boxes for the desired MCS/(data rate) or to select all of them, check the Select All check box.
Step 4 Click Apply.
Step 5 Choose Configuration > Radio Configurations > High Throughput > 2.4 GHz Band > 11ax.
Step 6 Check or uncheck the Enable 11 n check box.
Step 7 Check the check boxes for the desired MCS/(data rate) or to select all of them, check the Select All check box.
Step 8 Click Apply.
Step 9 Choose Configuration > Wireless > Access Points.
Step 10 Click the Access Point.
Step 11 In the Edit AP dialog box, enable the LED State toggle button and choose the LED brightness level from the LED Brightness Level drop-down list.
Step 12 Click Update and Apply to Device.
Configuring 802.11ax Radio Parameters (CLI)
Follow the procedure given below to configure radio parameters:
Procedure
| Command or Action | Purpose | |
| Step 1 | configure terminal
Example: Device# configure terminal |
Enters the global configuration mode. |
| Command or Action | Purpose | |
| Step 2 | ap dot11{24ghz|5ghz | 6ghz }dot11ax
Example: Device(config)# ap dot11 6ghz dot11ax |
Configures 802.11 6GHz dot11ax parameters.
Use the no form of the command to disable the configuration. |
| Step 3 | ap dot11{24ghz| 5ghz | 6ghz} dot11ax mcs tx index index spatial-stream
spatial-stream-value Example: Device(config)# ap dot11 5ghz dot11ax mcs tx index 11 spatial-stream 8 |
Enables the 11ax 2.4-Ghz, 5-Ghz, or 6-Ghz band modulation and coding scheme (MCS) transmission rates. |
| Step 4 | ap led-brightness brightness-level
Example: Device(config)# ap led-brightness 6 |
(Optional) Configures the led brightness level. |
Setting up the 802.11ax Radio Parameters
Procedure
| Command or Action | Purpose | |
| Step 1 | enable Example: Device# enable | Enters privileged EXEC mode. |
| Step 2 | ap name ap-name led-brightness-level
brightness-level Example: Device# ap name ax-ap led-brightness-level 6 |
Configures the led brightness level. |
| Step 3 | ap name ap-namedot11{24ghz|5ghz}dot11n antenna antenna-port
Example: Device# ap name ap1 dot11 5ghz dot11n antenna A |
Configures the 802.11n – 5 GHz antenna selection.
Use the no form of the command to disable the configuration. |
| Step 4 | ap name ap-name dot11{24ghz|5ghz}channel width channel-width
Example: Device# ap name ap1 dot11 5ghz channel width 160 |
Configures 802.11 channel width. |
| Command or Action | Purpose | |
| Step 5 | ap name ap-name dot11{24ghz|5ghz}secondary-80 channel-num
Example: Device# ap name ap1 dot11 5ghz secondary-80 12 |
Configures the advanced 802.11 secondary 80Mhz channel assignment parameters. |
Configuring OFDMA on a WLAN
Note
For Cisco Catalyst 9115 and 9120 series APs, the configuration given below are per radio, and not per WLAN. This feature remains enabled on the controller, if it is enabled on any of the WLANs.
Procedure
| Command or Action | Purpose | |
| Step 1 | configure terminal
Example: Device# configure terminal |
Enters the global configuration mode. |
| Step 2 | wlan wlan1
Example: Device(config)# wlan wlan1 |
Enters the WLAN configuration mode. |
| Step 3 | dot11ax downlink-ofdma
Example: Device(config-wlan)# dot11ax downlink-ofdma |
Enables the downlink connection that uses the OFDMA technology.
Use the no form of the command to disable the configuration. |
| Step 4 | dot11ax uplink-ofdma
Example: Device(config-wlan)# dot11ax uplink-ofdma |
Enables the uplink connection that uses the OFDMA technology . |
| Step 5 | dot11ax downlink-mumimo
Example: Device(config-wlan)# dot11ax downlink-mumimo |
Enables the downlink connection that uses the MUMIMO technology. |
| Step 6 | dot11ax uplink-mumimo
Example: Device(config-wlan)# dot11ax uplink-mumimo |
Enables the uplink connection that uses the MUMIMO technology. |
| Command or Action | Purpose | |
| Step 7 | dot11ax twt-broadcast-support
Example: Device (config-wlan)# dot11ax twt-broadcast-support |
Enables the TWT broadcast support operation. |
Verifying Channel Width
To verify the channel width and other channel information, use the following show commands:
Device# show ap dot11 5ghz summary
AP Name Mac Address Slot Admin State Oper State Channel Width Txpwr
AP80e0.1d75.6954 80e0.1d7a.7620 1 Enabled Up (52)* 1601(*)
Device# show ap dot11 dual-band summary
APName Subband Radio Mac Status Channel Power Level Slot ID Mode
kartl28021mi All 002a.1058.38a0 Enabled (52)* (1)* 1REAP
Device# show ap name <ap-name> channel802.11b/g Current Channel : 11Slot ID : 0
Allowed Channel List : 1,2,3,4,5,6,7,8,9,10,11
802.11a Current Channel ………………….. 52 (160 MHz)
Slot ID : 1
Allowed Channel List :
36,40,44,48,52,56,60,64,100,104,108,112,116,132,136,140,149,153,157,161,165
Device# show ap name <ap-name> config slot <slot-num>
Phy OFDM Parameters
Configuration : Automatic
Current Channel : 52
Extension Channel : No Extension
Channel Width : 160 MHz
Allowed Channel List :
36,40,44,48,52,56,60,64,100,104,108,112,116,132,136,140,149,153,157,161,165
TI Threshold : 0
Device# show ap dot11 5ghz channel
.DCA Sensitivity Level : MEDIUM : 15 dB
DCA 802.11n/ac Channel Width : 160 MHz
DCA Minimum Energy Limit : -95 dBm
Device# show ap rf-profile name <name> detail
.Unused Channel List : 165
DCA Bandwidth : 160 MHz DCA Foreign AP Contribution : Enabled
.Verifying Client Details
To verify the client information, use the following show commands:
Device# show wireless client mac-address <mac-address> detail
Client MAC Address : a886.ddb2.05e9 Client IPv4 Address : 169.254.175.214
Client IPv6 Addresses : fe80::b510:a381:8099:4747
2009:300:300:57:4007:6abb:2c9a:61e2
Client Username: N/A
Voice Client Type : Unknown AP MAC Address : c025.5c55.e400 AP Name: APe4c7.22b2.948e Device Type: N/A
Device Version: N/A AP slot : 0
Client State : Associated
Policy Profile : default-policy-profile Flex Profile : default-flex-profile Wireless LAN Id : 1
Wireless LAN Name: SSS_OPEN BSSID : c025.5c55.e406
Connected For : 23 seconds Protocol : 802.11ax – 5 GHz Channel : 8
Client IIF-ID : 0xa0000001 Association Id : 1
Authentication Algorithm : Open System Client CCX version : No CCX support
Session Timeout : 86400 sec (Remaining time: 86378 sec)
Device# show wireless client summary
Number of Local Clients: 1
MAC Address AP Name WLAN State Protocol Method Role
a886.ddb2.05e9 APe4c7.22b2.948e 1 Run 11ax(5) None Local
Device# show wireless stats client detail
Total Number of Clients : 1 Protocol Statistics
Protocol Client Count
802.11b : 0
802.11g : 0
802.11a : 0
802.11n-2.4GHz : 0
802.11n-5 GHz : 0
802.11ac : 0
802.11ax-5 GHz : 0
802.11ax-2.4 GHz : 0
802.11ax-6 GHz : 1
Verifying Radio Configuration
To verify the radio configuration information, use the following show commands:
Device# show ap dot11 5ghz network
802.11a Network : Enabled
802.11ax : Enabled
DynamicFrag : Enabled
MultiBssid : Disabled
802.11ax MCS Settings:
| MCS | 7, | Spatial | Streams | = | 1 : | Disabled |
| MCS | 9, | Spatial | Streams | = | 1 : | Disabled |
| MCS | 11, | Spatial | Streams | = | 1 : | Disabled |
| MCS | 7, | Spatial | Streams | = | 2 : | Supported |
| MCS | 9, | Spatial | Streams | = | 2 : | Supported |
| MCS | 11, | Spatial | Streams | = | 2 : | Supported |
| MCS | 7, | Spatial | Streams | = | 3 : | Supported |
| MCS | 9, | Spatial | Streams | = | 3 : | Disabled |
| MCS | 11, | Spatial | Streams | = | 3 : | Disabled |
| MCS | 7, | Spatial | Streams | = | 4 : | Supported |
| MCS | 9, | Spatial | Streams | = | 4 : | Supported |
| MCS | 11, | Spatial | Streams | = | 4 : | Supported |
| MCS | 7, | Spatial | Streams | = | 5 : | Supported |
| MCS | 9, | Spatial | Streams | = | 5 : | Supported |
| MCS | 11, | Spatial | Streams | = | 5 : | Supported |
| MCS | 7, | Spatial | Streams | = | 6 : | Supported |
| MCS | 9, | Spatial | Streams | = | 6 : | Supported |
| MCS | 11, | Spatial | Streams | = | 6 : | Supported |
| MCS | 7, | Spatial | Streams | = | 7 : | Supported |
| MCS | 9, | Spatial | Streams | = | 7 : | Supported |
| MCS | 11, | Spatial | Streams | = | 7 : | Supported |
| MCS | 7, | Spatial | Streams | = | 8 : | Supported |
| MCS | 9, | Spatial | Streams | = | 8 : | Supported |
| MCS | 11, | Spatial | Streams | = | 8 : | Supported |
Beacon Interval : 100Maximum Number of Clients per AP Radio : 200
Device# show ap dot11 24ghz network
802.11b Network : Enabled
802.11axSupport………………………………………………………………………………………… Enabled
dynamicFrag………………………………………………………………………….. Disabled
multiBssid…………………………………………………………………………….. Disabled
802.11ax : Enabled
DynamicFrag : Enabled
MultiBssid : Enabled
802.11ax MCS Settings:
| MCS | 7, | Spatial | Streams | = | 1 : | Supported |
| MCS | 9, | Spatial | Streams | = | 1 : | Supported |
| MCS | 11, | Spatial | Streams | = | 1 : | Supported |
| MCS | 7, | Spatial | Streams | = | 2 : | Supported |
| MCS | 9, | Spatial | Streams | = | 2 : | Supported |
| MCS | 11, | Spatial | Streams | = | 2 : | Supported |
| MCS | 7, | Spatial | Streams | = | 3 : | Supported |
| MCS | 9, | Spatial | Streams | = | 3 : | Supported |
| MCS | 11, | Spatial | Streams | = | 3 : | Supported |
| MCS | 7, | Spatial | Streams | = | 4 : | Disabled |
| MCS | 9, | Spatial | Streams | = | 4 : | Disabled |
| MCS | 11, | Spatial | Streams | = | 4 : | Disabled |
Beacon Interval : 100
Maximum Number of Clients per AP Radio : 200
Device# show ap dot11 6ghz network
802.11 6Ghz Network : Enabled
802.11ax : Enabled
802.11ax MCS Settings:
| MCS | 7, | Spatial | Streams | = | 1 : | Supported | |
| MCS | 9, | Spatial | Streams | = | 1 : | Supported | |
| MCS | 11, | Spatial | Streams | = | 1 : | Supported | |
| MCS | 7, | Spatial | Streams | = | 2 : | Supported | |
| MCS | 9, | Spatial | Streams | = | 2 : | Supported | |
| MCS | 11, | Spatial | Streams | = | 2 : | Supported | |
| MCS | 7, | Spatial | Streams | = | 3 : | Supported | |
| MCS | 9, | Spatial | Streams | = | 3 : | Supported | |
| MCS | 11, | Spatial | Streams | = | 3 : | Supported | |
| MCS | 7, | Spatial | Streams | = | 4 : | Supported | |
| MCS | 9, | Spatial | Streams | = | 4 : | Supported | |
| MCS | 11, | Spatial | Streams | = | 4 : | Supported | |
| Beacon Interval
. . . Maximum Number of Clients per AP Radio |
:
: |
95
200 |
|||||
| WiFi to Cellular RSSI Threshold | : | -85 dbm | |||||
| Client Network Preference | : | default | |||||
| #show wlan id 1 | |||||||
WLAN Profile Name : wlanon66
================================================
Identifier : 1
Description :
Network Name (SSID) : wlanon66
Status : Enabled
Broadcast SSID : Enabled
Advertise-Apname : Enabled
Universal AP Admin : Disabled
Max Associated Clients per WLAN : 0 Max Associated Clients per AP per WLAN : 0 Max Associated Clients per AP Radio per WLAN : 200
OKC : Enabled
Number of Active Clients : 0
CHD per WLAN : Enabled
WMM : Allowed
WiFi Direct Policy : Disabled
Operational State of Radio Bands
2.4ghz : UP
5ghz : UP
6ghz : DOWN (Required config: Disable WPA2 and Enable WPA3 & dot11ax)
DTIM period for 802.11a radio :
DTIM period for 802.11b radio :
Local EAP Authentication : Disabled
Mac Filter Authorization list name : Disabled Mac Filter Override Authorization list name : Disabled Accounting list name :
802.1x authentication list name : Disabled
802.1x authorization list name : Disabled Security
802.11 Authentication : Open System
802.11ac MU-MIMO : Enabled
802.11ax parameters
802.11ax Operation Status : Enabled
OFDMA Downlink : Enabled
OFDMA Uplink : Enabled
MU-MIMO Downlink : Enabled
MU-MIMO Uplink : Enabled
BSS Target Wake Up Time : Enabled BSS Target Wake Up Time Broadcast Support : Enabled
Note
For 6-GHz radio, the 802.11ax parameters are taken from the multi BSSID profile tagged to the corresponding 6-GHz RF profile of the AP. So, the WLAN dot11ax parameters are overridden by multi BSSID profile parameters in the case of 6-GHz. There are no changes for 2.4 and 5-GHz band WLANs. They continue to use the WLAN parameters for 802.11ax.
Device# show ap led-brightness-level summary
AP Name LED Brightness level
AP00FC.BA01.CC00 Not Supported
AP70DF.2FA2.72EE 8
AP7069.5A74.6678 2
APb838.6159.e184 Not Supported
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