TP-Link TL-SG2424P TL-SG2424P V1 CLI Reference Guide - Page 89

qos queue dscp-map

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User Guidelines 1. By default, the mapping relation between tag/cos and the egress queue is: 0-TC1, 1-TC0, 2-TC0, 3-TC1, 4-TC2, 5-TC2, 6-TC3, 7-TC3 2. Among the priority levels TC0-TC3, the bigger value, the higher p r i o r i t y. Example Map CoS 5 to TC 2.: TL-SG2424P(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 CoS value. 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-id } no qos queue dscp-map Parameter dscp-list ii 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-id ii The priority level the packets with tag are mapped to, which ranges from CoS 0 to CoS 7. Command Mode Global Configuration Mode 79

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79
User Guidelines
1.
By default, the mapping relation between tag/cos and the egress queue is:
0-TC1, 1-TC0, 2-TC0, 3-TC1, 4-TC2, 5-TC2, 6-TC3, 7-TC3
2.
Among the priority levels TC0-TC3, the bigger value, the higher
priority.
Example
Map CoS 5 to TC 2.:
TL-SG2424P(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 CoS value. 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-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.
cos-id
——
The priority level the packets with tag are mapped to, which ranges
from CoS 0 to CoS 7.
Command Mode
Global Configuration Mode