TP-LINK TL-SG2424 Specifikace Strana 96

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9.1.3 802.1P Priority
On this page you can configure 802.1P priority. 802.1P gives the Pri field in 802.1Q tag a
recommended definition. This field is used to divide packets into 8 priorities. When 802.1P Priority is
enabled, the packets with 802.1Q tag are mapped to different priority levels based on 802.1P priority
mode. The untagged packets are mapped based on port priority mode.
Choose the menu QoSDiffServ802.1P Priority to load the following page.
Figure 9-8 802.1P Priority
The following entries are displayed on this screen:
Priority Level
Priority Tag: Indicates the precedence level defined by IEEE802.1P.
Priority Level: Indicates the priority level the packets with tag are mapped to.
The priority levels are labeled as TC 0, TC1, TC2 and TC3.
Configuration Procedure:
Step Operation Description
1 Configure the mapping
relation between the 802.1P
priority and TC
Required. On QoSDiffServ802.1P Priority 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.
9.1.4 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 QoSDiffServDSCP Priority to load the following page.
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