TP-LINK JetStream TL-SG1024DE Datenbogen

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Easy Smart Configuration Utility User Guide
 
1. Port 
Based  
When port-base QoS mode is enabled, the user can manually map the ingress packets of the port 
to four different priority queues. After that, the switch will preferentially send packets in the queue 
with higher priority, and only when the queue with higher priority is empty, packets in the queue 
with lower priority are sent. 
2. 802.1P 
Based 
 
Figure 7-2 802.1Q Frame   
As shown in the figure above, each 802.1Q Tag has a Pri field, comprising 3 bits. The 3-bit priority 
field is 802.1p priority in the range of 0 to 7. The 802.1p priority value determines how the switch 
maps the ingress packets to the priority queues. The mapping relationship between eight 802.1p 
priority value and priority queues is shown as follows: 
 
Figure 7-3 Map 802.1P Priority   
  Priority 1 and 2 are assigned to the 1 (Lowest) priority queue. 
  Priority 0 and 3 are assigned to the 2 (Normal) priority queue. 
  Priority 4 and 5 are assigned to the 3 (Medium) priority queue. 
  Priority 6 and 7 are assigned to the 4 (Highest) priority queue. 
When 802.1P QoS mode is enabled, the switch will automatically map the ingress packets to 
priority queues based on the 802.1p priority and the above mapping relationship. After that, the 
switch will preferentially send packets in the queue with higher priority, and only when the queue 
with higher priority is empty, packets in the queue with lower priority are sent. As for the untagged 
packets, the switch will forward it according to the default port-based QoS mode. 
The QoS module is mainly for priority configuration and traffic control, including three submenus: 
QoS BasicBandwidth Control and Storm Control
 
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