TP-Link T1500G-8T T1500G-10PSUN V1 User Guide - Page 128
DSCP Priority
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Priority and CoS-mapping Config Tag-id/Cos-id: Queue TC-id: Indicates the precedence level defined by IEEE802.1P and the CoS ID. Indicates the priority level of egress queue the packets with tag and CoS-id are mapped to. The priority levels of egress queue are labeled as TC0, TC1, TC2 and TC3. Configuration Procedure: Step Operation Description 1 Configure the mapping Required. On QoS→DiffServ→802.1P/CoS mapping relation between the 802.1P page, configure the mapping relation between the priority Tag/CoS and the TC 802.1P priority Tag/CoS and the TC. 2 Select a schedule mode Required. On QoS→DiffServ→Schedule Mode page,, select a schedule mode. 9.1.4 DSCP Priority On this page you can configure DSCP priority. DSCP (DiffServ Code Point) is a new definition to IP ToS field given by IEEE. This field is used to divide IP datagram into 64 priorities. When DSCP Priority is enabled, IP datagram are mapped to different priority levels based on DSCP priority mode; non-IP datagram with 802.1Q tag are mapped to different priority levels based on 802.1P priority mode if 8021.1P Priority mode is enabled; the untagged non-IP datagram are mapped based on port priority mode. Choose the menu QoS→DiffServ→DSCP Priority to load the following page. Figure 9-9 DSCP Priority 118