TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 CLI Reference Guide - Page 184

T2500-28TC JetStream L2 Managed Switch CLI Guide 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 IEEE 802.1Q tag are mapped to different priority levels based on IEEE 802.1P priority mode if IEEE 802.1P Priority is enabled; the untagged non-IP datagram are mapped based on port priority mode. Syntax qos queue dscp-map dscp-list tc-id no qos queue dscp-map Parameter dscp-list -- List of DSCP value. One or several DSCP values can be typed using comma to separate. Use a hyphen to designate a range of values, for instance, 1,4-7,11 indicates choosing 1,4,5,6,7,11. The DSCP value ranges from 0 to 63. tc-id -- The egress queue the packets with tag are mapped to. It ranges from 0 to 3, which represents TC0, TC1, TC2, TC3 respectively. Command Mode Global Configuration Mode User Guidelines 1. By default, the mapping relation between tag and the egress queue is: (0-15)-TC0, (16-31)-TC1, (32-47)-TC2, (48-63)-TC3 2. Among the priority levels TC0-TC3, the bigger value, the higher p r i o r i t y. Example Map DSCP values 10-12 to TC 2: T2500-28TC(config)#qos queue dscp-map 10-12 2 qos queue mode Description The qos queue mode command is used to configure the Schedule Mode. To return to the default configuration, please use no qos queue mode command. When the network is congested, the program that many packets complete for resources must be solved, usually in the way of queue scheduling. The switch will control the forwarding sequence of the packets according to the priority 167