What is the relationship between WMM and 802.11e

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802.11e defines Quality of Service (QoS) for the wireless LAN, which provides the required service quality for voice and multimedia applications and enhances network performance. Wi-Fi Multimedia (WMM) defines four access categories, including voice, video, best effort, and background to optimize network communication quality and ensure stable access of corresponding applications to network resources. The WMM standard is a subset of IEEE 802.11e.

Other related questions:
What is the difference between the WMM mandatory switch and WMM function switch
The WMM function switch controls the entire WMM function of an AP. The entire WMM function includes the WMM mandatory switch and EDCA parameter. The WMM mandatory switch controls whether the terminals that do not support WMM can connect to a WMM-support AP.

What are the mappings between WMM queues and 802.1p priorities
WMM classifies data packets into four queues. 802.1P provides eight priorities. Users can configure the mappings between WMM queues and 802.1p priorities.

Relationship between the Elk database and HD
Elk is an SQL on Hadoop solution. It is a component of HD and provides excellent SQL query performance and compatibility on HD.

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