When High Efficiency (HE) is enabled, it is backward compatible with 802.11ac. To enable or disable 802.11ax HE, the following list is supported:

• URWB HE supports 20,40, and 80 MHz bandwidth for slot 1

• URWB HE supports 20,40,80, and 160 MHz bandwidth for slot 2

• URWB HE default setting is disabled

• HE negotiation is only supported between the devices with HE enabled

To enable HE mode, use the following CLI command:

Device# configure dot11Radio [1|2] high-efficiency enable

Device# configure dot11Radio [1|2] mcs maxmcs 11 <mcs index in integer or string>

Note	The default maxmcs is Nine.

To disable HE mode, use the following CLI command:

Device# configure dot11Radio [1|2] high-efficiency disable
default maxmcs is 9.

To validate HE mode, use the following show command:

Device# show dot11Radio 1 config
Maximum tx mcs : 9
High-Efficiency : Enabled
Maximum tx nss : 2
RTS Protection : disabled
guard-interval : 800ns

Device# show dot11Radio 2 config
Maximum tx mcs : 9
High-Efficiency : Enabled
Maximum tx nss : 2
RTS Protection : disabled
guard-interval : 800ns

Device# show eng-stats

WLAN1 Rx:

FC:58:9A:16F8:52 rate 1201 MCS 11/2 HE80/G1(800ns) ssn 48 rssi-48 received

WLAN1 Tx:

FC:58:9A:16F8:52 rate 1201 MCS 11/2 HE80/G1(800ns) sent 195612 failed 0

WLAN2 Rx:

FC:58:9A:16F8:13 rate 1201 MCS 11/2 HE80/G1(800ns) ssn 50 rssi-46 received

WLAN2 Tx:

FC:58:9A:16F8:13 rate 864 MCS 11/2 HE80/G1(800ns) sent 390797 failed 1

Following images shows the GUI configuration of global gateway mode: