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Priority Level
Tag-id/CoS-id: Indicates the precedence level defined by IEEE802.1P and the
CoS ID
Queue TC-id: Indicates the priority level of egress queue the packets with tag
and CoS-id are mapped to. The priority levels of egress queue are
labeled as TC0, TC1, TC2 and TC3
Note:
To complete QoS function configuration, you have to go to the Schedule Mode page to select a
schedule mode after the configuration is finished on this page.
Configuration Procedure:
Step Operation Description
1 Log on to the 802.1P Priority
page
2 Enable 802.1P priority
function
Required. By default, the 802.1P priority function is
disabled.
3 Map the 802.1P priority tag to
the priority level
Required. Select 802.1P priority tag and the
corresponding priority level.
4 Select a schedule mode Required. Log on to the Schedule Mode page to
select a schedule mode.
9.1.3 DSCP Priority
On this page you can configure DSCP priority. 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 802.1Q tag are mapped to different priority levels based on 802.1P
priority mode if 8021.1P Priority mode is enabled; the untagged non-IP datagram are mapped based
on port priority mode.
Choose the menu QoS→DiffServ→DSCP Priority to load the following page.
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