T3700G-28TQ
 
JetStream 28-Port Gigabit Stackable L3 Managed Switch CLI Guide 
 
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tc-id  ——  The egress queue the packets with tag are mapped to. It ranges from 
0 to 7, which represents TC queue from TC0 to TC7 respectively. 
Command Mode 
Global Configuration Mode 
User Guidelines 
1.  By default, the mapping relation between tag/cos and the egress queue is: 
0-TC2, 1-TC0, 2-TC1, 3-TC3, 4-TC4, 5-TC5, 6-TC6, 7-TC7. 
2.  Among the priority levels TC0-TC7, the bigger value, the higher 
priority. 
Example 
Map CoS 5 to TC 2.: 
T3700G-28TQ(config)#qos queue cos-map 5 2 
qos queue dscp-map 
Description 
The qos queue dscp-map command is used to configure the mapping relation 
between DSCP Priority and the TC egress queue. To return to the default 
configuration, please use no qos queue dscp-map command. 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 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 cos-pri 
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. 
cos-pri  ——  The cos priority the packets with tag are mapped to. It ranges from 
0 to 7, which represents CoS0 to CoS7 respectively.