Objectives
1. Overview
2. Option 1 through Dashboard
3. Option 2 through Network Administration
4. Verify Configuration
Overview
Trunk Ports
Ports set to Trunk mode can belong to multiple VLANs. The default VLAN membership of a trunk port is all VLANs (1-4094). A PVID must be set on the port (it can be a non-existing VLAN). Trunk ports accept tagged and untagged frames. Untagged frames will be classified to the VLAN whose VLAN ID (VID) is configured as the port's PVID.
Frames, whose VID is the PVID of the egress port, are sent untagged. Frames sent in all other VLANs active on the port are sent tagged.
Ingress filtering is always enabled on Trunk-mode ports. Incoming frames will undergo ingress filtering, and if correctly tagged, (tagged with a VID of one of the VLANs to which the port currently belongs) are admitted.
The default PVID is 1 (the default VLAN). If another VID is configured as the port's PVID, and the corresponding VLAN is deleted from the port or from the computer, the port's PVID reverts to 1, meaning that the port is made a member of the default VLAN.
Setting a trunk-port's PVID to 4095 limits traffic to tagged frames. Incoming untagged frames are silently discarded, and no frames are sent untagged.
Trunk-mode ports are intended for switch-to-switch links, where traffic is tagged.
Set trunk through Dashboard
1. Log in into the Web Gui thru the IP address set for management using the admin user and password.
2. From the Menu tree on the left of the main page Click on "Dashboard".
3. From the Options listed under Configure on the right side of the screen. Select "VLAN".
4. Select the toggle box for "Configure and Assign Ports to VLAN".
5. Click on "Next" at the bottom right of the screen.
6. Highlight the port you want to set as trunk on the picture representing the switch. The port will turn blue.
7. Select the toggle box for "Trunk" below the switch picture.
8. Select the pre-configured VLANS that you want to pass thru the trunk on this port by placing a check mark next to the specific VLAN. Or you can choose the option to allow "Allow All Future VLANs".
9. In the PVID text box type in the desired native "Untagged" VLAN" for this specific port.
10. Click on "Next" at the bottom right of the screen.
11. View the Summary of your configured choices and Click on "Apply" at the bottom right of the screen.
Note: Any time you make changes to the configuration thru the Web Gui you will need to save the changes to the Startup Config of the switch. If not, you will lose those changes when the switch is rebooted or loses power. You can save the configuration to the start-up using the "Tools" drop down at the upper right of the Web Gui page. The Tools page is found by Clicking on the Gear Icon. The drop down that appears has an option to "Save to Startup Configuration"
Set trunk thru Network Administration
1. Login into the Web Gui thru the IP address set for management using the admin user and password.
2. From the Menu tree on the left of the main page Click on "Network Administration".
3. From the second Menu tree select "VLAN".
4. From the third Menu tree select "Standard VLAN".
5. Click on the Edit hyperlink on the same row as VLAN Port Settings.
6. This opens another screen where you can choose the Edit hyperlink for the specific port that you need set as a Trunk.
7. This opens another screen where you can select the toggle box next to "Trunk".
8. Take a look at the VLAN List and confirm that all VLANs or only the specific VLANs are the List inside the Box. By default all VLANs are included. You can highlight a group of VLANs using the "Shift" key.
9. Click on "OK" at the bottom right of the screen. You can use the drop to the left of the "OK" box to change the option Apply to: Running and Startup Configuration. This will save a step having to save the configuration to the startup later.
10. Close the "Edit VLAN Port Settings" page with the "X" in the upper right of the window.
Verify Configuration
From the Dashboard main page.
1. Select the "VLAN" tab above the picture of the Switch.
2. Now the switch picture displays the port mode for the ports displayed on the switch. Any port with a "T" in the box is set as a Trunk.
NOTE: The Dashboard view only provides the port mode. If you need the detailed port configuration use the Network Administration page described below.
From the Network Administration page.
1. From the Menu tree on the left of the main page Click on "Network Administration".
2. From the second Menu tree select "VLAN".
3. Select the Header "VLAN Port Settings".
4. This opens up the list of ports. Choose the "View All" hyperlink to the right of the list.
5. This displays the whole list of ports. The ports that are set to Trunk will state that in the Port VLAN column.