Vlan Settings (Virtual Local Area Network); Trunk Setting; Mirror Setting - D-Link DES-1226G Manual

In some ports that need to have a high priority to manage the data transfer, QoS should be changed. Set the port's QoS to high to determine that the
port will always transfer their data first.

VLAN Settings (Virtual Local Area Network)

Group individual ports into a small "Virtual" network of their own to be independent of the other ports. To add a VLAN group, press the "Add Group"
button. The new VLAN configuration window will appear, and you can fill in the description in order to describe this VLAN Group, check on the port to
be a member to this VLAN Group, and press the "Apply" button to execute the setting.
Once you want to modify the VLAN Group, check on the ID parameter; the ID VLAN configuration window will appear.

Trunk Setting

The Trunk function enables you to cascade two devices with a double times bandwidth (up to 4000Mbps in full-duplex mode).
There are two trunking groups for selection; you can select either or both groups for trunking.
Be sure that the selected trunk setting port must connect to the device with a same VLAN group.

Mirror Setting

Port Mirroring is a method of monitoring network traffic that forwards a copy of each incoming and/or outgoing packet from one port of a network
switch to another port where the packet can be studied. It enables the manager to keep close track of switch performance and alter it if necessary.
Configuring the port mirroring by assigning a source port from which to copy all packets and a sniffer port where those packets will be sent.
The selection of the sniffer mode is as follows:
TX (transmit) mode: This mode will duplicate the data transmitted from the source port and forward it to the sniffer port.
RX (receive) mode: This mode will duplicate the data sent to the source and forward it to the sniffer port.
Both (transmit and receive) mode: This mode will duplicate both data transmitted from and data sent to the source port, then it will forward it to the
sniffer port.
Figure 13. VLAN Group Settings
Figure 14. VLAN Settings
Figure 15. Trunk Settings
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