Huawei quidway s7700 Configuration Manual page 215

Quidway S7700 Smart Routing Switch
Configuration Guide - SPU
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In WLAN, EDCA parameters and other WMM parameters are managed by using a WMM
profile. After a WMM profile is created, it is bound to a radio profile and then applied to a radio
together with the radio profile.
VAP QoS Policy Management
When an AP receives 802.11 packets from a STA, it converts the packets into 802.3 packets.
The AP transmits the 802.3 packets to an AC directly or over a tunnel. After receiving the 802.3
packets, the AC forwards the packets to a network-side device. During packet transmission, the
AC schedules the 802.3 packets based on the 802.1p priorities in the packets or tunnel
priorities.
When the AC receives 802.3 packets from the network-side device, it forwards the 802.3 packets
to the AP directly or over a tunnel. When being transmitted over a tunnel, the packets can be
scheduled based on tunnel priorities. After receiving the 802.3 packets, the AP converts the
packets into 802.11 packets and schedules the 802.11 packets into different AC queues based
on user priorities before sending them to the STA.
VAP QoS policies are managed by using a traffic profile.
profile.
Table 5-3 Parameters in a traffic profile
Parameter
Client/VAP
upstream rate limit
802.1p priority in
802.3 packets
Upstream tunnel
priority
Downstream tunnel
priority
Priority in 802.11
packets
After a traffic profile is created, it must be bound to a service set and applied to the corresponding
VAP along with the service set.
Issue 01 (2011-07-15)
duration. If this parameter is set to 0, an AP or a STA can send only one packet each time
it occupies a channel.
ACK policy: determines whether to send an ACK packet to confirm the receiving of a
unicast packet. In normal ACK mode, the receiver sends an ACK packet to confirm the
receiving of a unicast packet from the sender. In no ACK mode, if the communication
quality is good and interference is low, no ACK packet is sent to confirm the receiving of
a unicast packet from the sender. This prevents packet retransmission and improves the
transmission efficiency.
Description
Limits the upstream rate of a STA or VAP.
Specifies the 802.1p priority in 802.3 packets received by an AP. The
802.1p priority can be set or mapped from the user priority in 802.11
packets sent by a STA.
Specifies the outer tunnel priority in 802.3 packets received by an AP.
The upstream tunnel priority can be set or mapped from the inner
priority.
Specifies the outer tunnel priority in 802.3 packets sent by an AC. The
downstream tunnel priority can be set or mapped from the inner
priority.
Specifies the priority of 802.11 packets sent by an AP.
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5 WLAN Configuration
Table 5-3 lists parameters in a traffic
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