TP-Link TL-SG2424P TL-SG2424P V1 User Guide 1910010774 - Page 113
P/CoS mapping
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The following entries are displayed on this screen: DSCP Priority Config DSCP Priority: Select Enable or Disable DSCP Priority. Priority Level DSCP: Indicates the priority determined by the DS region of IP datagram. It ranges from 0 to 63. Priority: Indicates the 802.1P priority the packets with tag are mapped to. The priorities are labeled as CoS0 ~ CoS7. Configuration Procedure: Step Operation Description 1 Configure the mapping relation Required. On QoS→DiffServ→DSCP Priority page, between the DSCP priority and enable DSCP Priority and configure the mapping 802.1P priority relation between the DSCP priority and 802.1P priority. 1 Configure the mapping relation Required. On QoS→DiffServ→802.1P/CoS mapping between the 802.1P priority page, configure the mapping relation between the and TC 802.1P priority and TC. 2 Select a schedule mode Required. On QoS→DiffServ→Schedule Mode page, select a schedule mode. 9.1.3 802.1P/CoS mapping On this page you can configure the mapping relation between the 802.1P priority tag-id/CoS-id and the TC-id. 802.1P gives the Pri field in 802.1Q tag a recommended definition. This field, ranging from 0-7, is used to divide packets into 8 priorities. 802.1P Priority is enabled by default, so the packets with 802.1Q tag are mapped to different priority levels based on 802.1P priority mode but the untagged packets are mapped based on port priority mode. With the same value, the 802.1P priority tag and the CoS will be mapped to the same TC. Choose the menu QoS→DiffServ→802.1P/CoS mapping to load the following page. Figure 9-8 802.1P/CoS mapping 105