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Configuring Layer 2 Logical Interfaces

To configure a Layer 2 logical interface as an access interface, you must specify the VLAN identifier that the interface assigns to untagged packets. To configure a Layer 2 logical interface as a trunk interface, you specify one or more VLAN identifiers accepted by the interface.

Before You Begin

For background information, read Understanding Layer 2 Interfaces. Refer to the example configuration in Configuring Bridge Domains.

This example configures logical interface ge-3/0/0.0 as a trunk port that carries traffic for packets tagged with VLAN identifiers 1 through 10; this interface is implicitly assigned to the previously configured bridge domains bd1 and bd2. Any untagged packets received on the physical interface ge-3/0/0 are assigned the VLAN identifier 10.

You can use either J-Web or the CLI configuration editor to configure Layer 2 logical interfaces.

This topic covers:

J-Web Configuration

To configure a Layer 2 logical interface as a trunk port:

  1. Select Configuration>View and Edit>Edit Configuration.

    The Configuration page appears.

  2. Select Interfaces.
  3. In the Interface name column, select ge-3/0/0.
  4. Under Unit, in the Interface unit number column, click 0.
  5. Next to Family group, select Bridge, and then click Configure.
  6. Next to Interface mode, select trunk.
  7. Next to Vlan list, select Vlan id list.
  8. In the Vlan id box, type 1–10.
  9. Click OK to return to the Family page.
  10. Click OK to return to the Unit page.
  11. Click OK to return to the Interface page.
  12. Click OK to return to the Interfaces page.

To configure a VLAN ID for untagged packets received on a physical interface:

  1. Select Configuration>View and Edit>Edit Configuration.

    The Configuration page appears.

  2. Select Interfaces.
  3. In the Interface name column, select ge-3/0/0.
  4. In the Native vlan id box, type 10.
  5. Next to Vlan tag mode, select Vlan tagging.
  6. Click OK to return to the Interfaces page.

CLI Configuration

To configure a Layer 2 logical interface as a trunk port:

user@host# set interfaces ge-3/0/0 unit 0 family bridge interface-mode trunk vlan-id-list 1–10

To configure a VLAN identifier for untagged packets received on a physical interface:

user@host# set interfaces ge-3/0/0 vlan-tagging native-vlan-id 10

Related Topics

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