Supported Platforms
Associating VLAN IDs to VLAN Demux Interfaces
The following sections describe how to configure VLAN demux interfaces to receive and forward VLAN-tagged frames:
Associating VLAN IDs to VLAN Demux Interfaces Overview
To configure a VLAN demux interface to receive and forward VLAN-tagged frames, you must associate a VLAN ID or dual tagged (stacked) VLAN ID to the interface. Table 1 shows the configuration statements you use to associate VLAN IDs to VLAN demux interfaces, depending on the VLAN tag framing you use:
Table 1: Configuration Statements Used to Associate VLAN IDs to VLAN Demux Interfaces
| Single-Tag Framing | Dual-Tag Framing | |
|---|---|---|
| Statement Format | vlan-id vlan-id; | vlan-tags outer tpid.<vlan-id> inner tpidvlan-id; |
You can include all of the statements at the following hierarchy levels:
- [edit interfaces interface-name unit logical-unit-number]
- [edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number]
- [edit interfaces demux0 unit logical-unit-number]
Associating a VLAN ID to a VLAN Demux Interface
A VLAN demux interface that you have associated to a particular VLAN ID receives and forwards incoming frames that contain a matching VLAN ID. You can associate a VLAN ID to a single-tag logical interface or to a dual-tagged (stacked) logical interface.
- Associating a VLAN ID to a Single-Tag VLAN Demux Interface
- Associating a VLAN ID to a Dual-Tag VLAN Demux Interface
Associating a VLAN ID to a Single-Tag VLAN Demux Interface
To associate a VLAN ID to a single-tag VLAN demux interface, include the vlan-id statement at the [edit interfaces demux0 unit logical-unit-number] hierarchy level:
To configure an interface to support single-tag logical interfaces, you must also include the vlan-tagging statement at the [edit interfaces interface-name] hierarchy level. To support mixed tagging, include the flexible-vlan-tagging statement instead.
Associating a VLAN ID to a Dual-Tag VLAN Demux Interface
To associate a VLAN ID to a dual-tag VLAN demux interface, include the vlan-tags statement at the [edit interfaces demux0 unit logical-unit-number] hierarchy level:
To configure an interface to support dual-tag logical interfaces, include the stacked-vlan-tagging statement at the [edit interfaces interface-name] hierarchy level. To support mixed tagging, include the flexible-vlan-tagging statement instead.
