Operation Manual

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

priority level

Required. Select DSCP priority and the corresponding

priority level.

4 Select a schedule mode Required. Log on to the Schedule Mode page to

select a schedule mode.

9.1.4 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:

¾ Schedule 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.