802.11 In the frame, it is used to record the network allocation vector ( NAVWhat is the value of ()?

If an enterprise's wireless network networking mode is direct forwarding, then thin and then transfer the message CAPWAP Encapsulate, pass CAPWAP The tunnel transmits this data message to AP can 802.11 Data messages are converted into Ethernet messages, AC.

Huawei Box Wireless Controller AC6605 support twenty four Piece PoE Interface in WLAN Can be directly connected when networking AC of AP Make a supply Electricity.

The following () service model can provide end-to-end QoS services, but the scalability is not good.

Regarding the telnet management of AC6605, the following statement is wrong ().