TP-Link TL-SL5428E User Guide - Page 128
P Priority
UPC - 845973020873
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SP+WRR-Mode: Equ-Mode: 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. 11.1.3 802.1P Priority 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 11-3 802.1P Priority The following entries are displayed on this screen: ¾ 802.1P Priority Config 802.1P Priority: Select Enable/Disable 802.1P Priority. ¾ Priority Level Priority Tag: Indicates the precedence level defined by IEEE802.1P. Priority Level: Indicates the priority level the packets with tag are mapped to. The priority levels are labeled as TC 0, TC1, TC2 and TC3. 120