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

Required. On QoS→DiffServ→DSCP Priority page,

 

relation between

the DSCP

enable DSCP Priority and configure the mapping

 

priority and 802.1P priority

relation between the DSCP priority and CoS.

 

 

 

 

 

2

Configure

the

mapping

Required. On QoS→DiffServ→802.1P/CoS mapping

 

relation between the CoS and

page, configure the mapping relation between the CoS

 

the TC

 

 

and the TC.

 

 

 

3

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

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TP-Link TL-SG3424P 3 802.1P/CoS mapping,  Dscp Priority Config,  Priority Level, Required. On QoS→DiffServ→DSCP Priority

TL-SG3424P specifications

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