Trunk Interface

You can query, modify, or delete the configuration of a trunk interface.

A trunk interface connects to a packet switching device and serves a trunk link. A trunk interface allows frames from multiple VLANs to pass.

Query a trunk interface.
1. Choose Service Management > VLAN > Trunk Interface in the navigation tree to open the Trunk Interface page.
2. Select an interface type from the drop-down list box.
3. Enter the interface number, for example, 1/0/0 (slot ID/subcard ID/interface number) .
  NOTE:
  After the CSS function is enabled on the switch, enter the interface number in the format of 1/1/0/1 (CSS ID/slot ID/subcard ID/interface number).
4. Click Query to display all matching records.
Modify the link type.
1. Choose Service Management > VLAN > Trunk Interface in the navigation tree to open the Trunk Interface page.
2. Select the interface whose link type you want to change.
3. Click Change Link Type. A dialog box is displayed asking "Modifying the link type will clear VLANs on the selected interface. Conitnue?"
4. Click OK. The Change Link Type window is displayed.
5. The link type includes Access and Hybrid.
6. Click OK.
Clear the VLAN configuration.
1. Choose Service Management > VLAN > Trunk Interface in the navigation tree to open the Trunk Interface page.
2. Select the interface configured by the VLAN that you want to clear.
3. Click Clear VLANs. A dialog box is displayed asking "Are you sure you want to clear all VLANs and restore the default VLAN ?"
4. Click OK.

Modify a Trunk interface.

Choose Service Management > VLAN > Trunk Interface in the navigation tree to open the Trunk Interface page.

Click the

icon to open the Modify VLAN configuration on interface page.

Table 1 describes the parameters on the page.

**Table 1** Modify VLAN configuration
Parameter		Description
Interface name		Indicates the name of the interface where you want to modify the configuration. This parameter cannot be modified.
PVID		The value ranges from 1 to 4094. This parameter is mandatory.
Allowed VLAN		Indicates the IDs of VLANs. The value ranges from 1 to 4094. This parameter is optional. You can enter multiple VLAN IDs, for example, 1-3,5,7,9.