TP-LINK tl-sl5428e User Manual

 

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Strict-Priority + Weight Round Robin Mode. In this mode, this 
switch provides two scheduling groups, SP group and WRR 
group. Queues in SP group and WRR group are scheduled strictly 
based on strict-priority mode while the queues inside WRR group 
follow the WRR mode. In SP+WRR mode, TC3 is in the SP group; 
TC0, TC1 and TC2 belong to the WRR group and the weight value 
ratio of TC0, TC1 and TC2 is 1:2:4. In this way, when scheduling 
queues, the switch allows TC3 to occupy the whole bandwidth 
following the SP mode and the TC0, TC1 and TC2 in the WRR 
group will take up the bandwidth according to their ratio 1:2:4. 

 

Equal-Mode. In this mode, all the queues occupy the bandwidth 
equally. The weight value ratio of all the queues is 1:1:1:1. 

 

On this page you can configure 802.1P priority. 802.1P gives the Pri field in 802.1Q tag a 
recommended definition. This field is used to divide packets into 8 priorities. When 802.1P Priority is 
enabled, the packets with 802.1Q tag are mapped to different priority levels based on 802.1P priority 
mode. The untagged packets are mapped based on port priority mode. 

Choose the menu QoS→DiffServ→802.1P Priority to load the following page. 

 

Figure  9-8 802.1P Priority 

The following entries are displayed on this screen: 

¾

Select Enable/Disable 802.1P Priority. 

¾

Indicates the precedence level defined by IEEE802.1P. 

 

Indicates the priority level the packets with tag are mapped to. The 
priority levels are labeled as TC0, TC1, TC2 and TC3.