The QoS module is mainly for traffic control and priority configuration, including three submenus: DiffServ, Bandwidth Control and Voice VLAN.

9.1 DiffServ

This switch classifies the ingress packets, maps the packets to different priority queues and then forwards the packets according to specified scheduling algorithms to implement QoS function.

This switch implements three priority modes based on port, on 802.1P and on DSCP, and supports four queue scheduling algorithms. The port priorities are labeled as CoS0, CoS1… CoS7.

The DiffServ function can be implemented on Port Priority, Schedule Mode, 802.1P Priority and DSCP Priority pages.

9.1.1 Port Priority

On this page you can configure the port priority.

Choose the menu QoS→DiffServ→Port Priority to load the following page.

Figure 9-6 Port Priority Config

The following entries are displayed on this screen:

¾Port Priority Config

Select:

Select the desired port to configure its priority. It is multi-optional.

Port:

Displays the physical port number of the switch.

Priority:

Specify the priority for the port.

LAG:

Displays the LAG number which the port belongs to.

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TP-Link TL-SL5428E manual DiffServ, ¾ Port Priority Config, Displays the LAG number which the port belongs to