TP-Link T1500-28PCT T1500-28PCTTL-SL2428PUN V3 User Guide - Page 476
Configuring the DSCP to 802.1p Mapping and DSCP Remp
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Configuring QoS Class of Service Configuration Step 2 Step 3 Step 4 Step 5 qos cos-map {dot1p-priority} {tc-queue} Specify the 802.1p to queue mapping. The packets with the desired 802.1p priority will be put in the corresponding queues. By default, the 802.1p priority 0 to 7 is respectively mapped to TC-1, TC-0, TC-2, TC-3, TC-4, TC-5, TC-6, TC-7. dot1p-priority: Specify the 802.1p priority. The valid values are from 0 to 7. tc-queue: Specify the ID number of the TC queue. The valid values are from 0 to 7. show qos cos-map Verify the 802.1p to queue mappings. end Return to privileged EXEC mode. copy running-config startup-config Save the settings in the configuration file. ■■ Configuring the DSCP to 802.1p Mapping and DSCP Remp Follow these steps to configure the DSCP to 802.1p mapping and DSCP remap: Step 1 configure Enter global configuration mode Step 2 qos dscp-map {dscp-value-list} {dot1p-priority} Specify the DSCP to 802.1p mapping. The ingress packets with the desired DSCP priority are first mapped to 802.1p priority based on the DSCP to 802.1p mapping, then to TC queues based on the 802.1p to queue mapping. The untagged packets with the desired DSCP priority will be added an 802.1p priority value according to the DSCP to 802.1p mapping. by default, the DSCP priorities 0-7 are mapped to the 802.1p priority 0, the DSCP priorities 8-15 are mapped to the 802.1p priority 1 and so on. dscp-value-list: Specify the DSCP value list in the format of "1-3,5,7". The valid values are from 0 to 63. dot1p-priority: Specify the 802.1p priority. The valid values are from 0 to 7. Step 3 qos dscp-remap {dscp-value-list} {dscp-remap-value} (Optional) Specify the DSCP to DSCP mappings. DSCP Remap is used to modify the DSCP priority of the ingress packets. When the switch detects the packets with the desired DSCP priority, it will modify the value of DSCP priority according to the map. By default, the original DSCP priority 0 is mapped to the DSCP priority 0, the original DSCP priority 1 is mapped to the DSCP priority 1 and so on. dscp-value-list: Specify the original DSCP priority list in the format of "1-3,5,7". The valid values are from 0 to 63. dscp-remap-value: Specify the new DSCP priority. The valid values are from 0 to 63. Step 4 show qos dscp-map Verify the DSCP to queue mappings. User Guide 453