TP-Link TL-SG3424P manual 3 802.1P/CoS mapping,  Dscp Priority Config,  Priority Level

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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