¾ Priority Level

 

DSCP:

Indicates the priority determined by the DS region of IP datagram.

 

It ranges from 0 to 63.

Priority Level:

Indicates the priority level the packets with tag are mapped to. The

 

priority levels 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 DSCP Priority page

 

 

 

 

2

Enable DP priority function

Required. By default, the DSCP priority function is

 

 

disabled.

 

 

 

3

Map the DSCP priority to the

Required. Select DSCP priority and the

 

priority level

corresponding priority level.

 

 

 

4

Select a schedule mode

Required. Log on to the Schedule Mode page to

 

 

select a schedule mode.

 

 

 

9.1.4 Schedule Mode

On this page you can select a schedule mode for the switch. When the network is congested, the problem that many packets compete for resources must be solved, usually in the way of queue scheduling. The switch will control the forwarding sequence of the packets according to the priority queues and scheduling algorithms you set. On this switch, the priority levels are labeled as TC0, TC1… TC3.

Choose the menu QoS→DiffServ→Schedule Mode to load the following page.

Figure 9-9 Schedule Mode

The following entries are displayed on this screen:

¾Schedule Mode Config

SP-Mode:Strict-Priority Mode. In this mode, the queue with higher priority

will occupy the whole bandwidth. Packets in the queue with lower priority are sent only when the queue with higher priority is empty.

WRR-Mode:Weight Round Robin Mode. In this mode, packets in all the queues are sent in order based on the weight value for each queue. The weight value ratio of TC0, TC1, TC2 and TC3 is 1:2:4:8.

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TP-Link TL-SG2008 manual Schedule Mode, ¾ Priority Level, It ranges from 0 to