The priority-map downstream dot1p command configures mapping from 802.1p priorities of 802.3 packets to user priorities of 802.11 packets when packets are sent to an AP from upper-layer devices.
The undo priority-map downstream dot1p command restores the default mapping from 802.1p priorities of 802.3 packets to user priorities of 802.11 packets when packets are sent to an AP from upper-layer devices.
By default, 802.1p priority 0 of 802.3 packets maps to user priority 0 of 802.11 packets, 802.1p priority 1 to user priority 1, and similarly, 802.1p priority 7 to user priority 7.
priority-map downstream dot1p { dot1p-value1 [ to dot1p-value2 ] } &<1-7> dot11e dot11e-value
undo priority-map downstream dot1p
Parameter |
Description |
Value |
|---|---|---|
dot1p dot1p-value1 |
Specifies the 802.1p priority in an 802.3 packet. |
The value is an integer that ranges from 0 to 7. A larger value indicates a higher priority. |
to dot1p-value2 |
Specifies the 802.1p priority in an 802.3 packet. |
The value is an integer that ranges from 0 to 7. A larger value indicates a higher priority. dot1p-value2 must be greater than dot1p-value1. |
dot11e dot11e-value |
Specifies the user priority of 802.11 packets. |
The value is an integer that ranges from 0 to 7. A larger value indicates a higher priority. |
802.3 and 802.11 data packets use different fields to identify their priorities. 802.11 packets sent from a WMM-capable STA carry the user priority (also called the User Priority field), and VLAN tagged-802.3 packets transmitted on the Ethernet contain 802.1p priorities (also called the CoS field). When data packets are forwarded from the AC or upper-layer network to an AP, the AP needs to convert the 802.3 packets to 802.11 packets and map the 802.1p priority carried in the 802.3 packet header to the user priority of 802.11 packets. You can use the priority-map downstream dot1p command to configure mapping from 802.1p priorities of 802.3 packets to user priorities of 802.11 packets.