TP-LINK TL-SG2424P User Manual Page 113

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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 relation
between the DSCP priority and
802.1P priority
Required. On QoSDiffServDSCP Priority page,
enable DSCP Priority and configure the mapping
relation between the DSCP priority and 802.1P priority.
1 Configure the mapping relation
between the 802.1P priority
and TC
Required. On QoSDiffServ802.1P/CoS mapping
page, configure the mapping relation between the
802.1P priority and TC.
2 Select a schedule mode Required. On QoSDiffServSchedule 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 QoSDiffServ802.1P/CoS mapping to load the following page.
Figure 9-8 802.1P/CoS mapping
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