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AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S V200R009 CLI-based Configuration Guide - Ethernet Switching

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Configuring Basic QinQ

Configuring Basic QinQ

Context

Dot1q tunnel isolates a carrier network from a user network and is widely used when users connect to a carrier network. When private networks connect to a carrier network through CEs and PEs, run the vlan dot1q-tunnel command on CE interfaces connected to PEs so that the CE interfaces add the outer VLAN tag allocated by the carrier to user packets. This implementation saves VLAN IDs and allows user packets to be transparently transmitted on the carrier network.

Procedure

  • Configure basic QinQ on a sub-interface.
    1. Run system-view

      The system view is displayed.

    2. Run bridge bridge-id

      A bridge group is created and the bridge group view is displayed.

    3. Run quit

      Exit from the bridge group view.

    4. Run interface { ethernet | gigabitethernet } interface-number.subinterface-number

      The Ethernet sub-interface view is displayed.

      NOTE:

      Sub-interfaces can only be created on Layer 3 Ethernet interfaces. If an interface works in Layer 2 mode and supports switching between Layer 2 and Layer 3 modes, run the undo portswitch command to switch the interface in Layer 3 mode before creating a sub-interface on the interface.

    5. Run bridge bridge-id

      The Ethernet sub-interface is added to the bridge group.

    6. Run bridge vlan-transmit enable

      The Ethernet sub-interface is enabled to transparently transmit VLAN IDs.

    7. Run vlan allow-pass { vid vlan-id1 [ to vlan-id2 ] | default }

      The VLANs allowed by the Ethernet sub-interface are configured.

      NOTE:

      VLANs allowed by all sub-interfaces of a main interface cannot overlap.

      The vlan allow-pass default command can be executed only on a sub-interface among all sub-interfaces of each main interface. Packets are forwarded through the default sub-interface when the packets do not match other QinQ or VLAN mapping entries on a sub-interface.

    8. Run vlan dot1q-tunnel tunnel-vlan-id [ native vid native-vlan-id ]

      The vlan dot1q-tunnel command can be only executed at one time on a sub-interface and the VLAN specified by tunnel-vlan-id must be allowed by the sub-interface.

      Basic QinQ is configured on the sub-interface.

  • Configure basic QinQ on a Layer 2 VE interface.
    1. Run system-view

      The system view is displayed.

    2. Run interface virtual-ethernet ve-number

      A VE interface is created and the VE interface view is displayed.

    3. Run portswitch

      The VE interface is switched from Layer 3 to Layer 2.

      By default, a VE interface works in Layer 3 mode.

    4. Run port link-type access

      The link type of the interface is set to access.

      By default, the link type of an interface is hybrid.

    5. Run vlan dot1q-tunnel enable

      Basic QinQ is enabled on the Layer 2 VE interface.

    6. Run port default vlan vlan-id

      The default VLAN is configured for the interface and the interface is added to the specified VLAN.

      By default, VLAN 1 is the default VLAN of all interfaces.

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Updated: 2019-05-17

Document ID: EDOC1000174108

Views: 55636

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