TP-LINK JetStream TL-SG1024DE Scheda Tecnica

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Easy Smart Configuration Utility User Guide
 
Chapter 7   QoS 
QoS (Quality of Service) functions to provide different quality of service for various network 
applications and requirements and optimize the bandwidth resource distribution so as to provide a 
network service experience of a better quality. 
  QoS  
This switch classifies the ingress packets, maps the packets to four different priority queues and 
then forwards the packets according to Strict-Priority scheduling algorithms to implement QoS 
function.  
 
Figure 7-1 QoS Function   
 Traffic 
classification: 
Identifies packets conforming to certain characters according to certain 
rules.  
  Map: This switch supports four priority queues. The priority queues are labeled as 1(Lowest), 
2(Normal), 3(Medium) and 4(Highest), among them the bigger the value, the higher the 
priority. The ingress packets are mapped to four different priority queues based on the QoS 
modes. This switch implements two QoS modes based on port and on 802.1P.   
  Queue scheduling algorithm: When the network is congested, the problem that many packets 
compete for resources must be solved, usually in the way of queue scheduling. In both 
port-based and 802.1P QoS modes, this switch adopts Strict-Priority scheduling algorithm. In 
Strict-Priority scheduling algorithm, the queue with higher priority will occupy the whole 
bandwidth. Packets in the queue with lower priority are sent only when the queue with higher 
priority is empty.   
  QoS Mode 
This switch implements two QoS modes based on port and on 802.1P. By default, the QoS mode 
based on port is enabled and the other one is optional.   
 
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