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S9300, S9300E, and S9300X V200R012C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, Voice VLAN, VLAN mapping, QinQ, GVRP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, HVRP, and Layer 2 protocol transparent transmission.
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Configuring VLAN ID-based Selective QinQ

Configuring VLAN ID-based Selective QinQ

Context

VLAN ID-based selective QinQ allows an interface to add an outer VLAN tag to packets based on VLAN IDs of the packets.

NOTE:
  • Selective QinQ is recommended to be enabled on a hybrid interface . Selective QinQ can take effect on the interface only in the inbound direction.
  • When selective QinQ is configured on an interface, the interface can add only one outer VLAN tag to a received frame with an inner VLAN tag, and the outer VLAN ID must exist. If the outer VLAN ID does not exist, the services where selective QinQ is configured are unavailable.
  • When an interface configured with VLAN stacking needs to remove the outer tag from outgoing frames, the interface must join the VLAN specified by stack-vlan in untagged mode. If the outer VLAN does not need to be removed, the interface must join the VLAN specified by stack-vlan in tagged mode.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

    The interface can be a physical interface or an Eth-Trunk interface.

  3. Run port link-type hybrid

    The link type of the interface is set to hybrid.

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

  4. Run port hybrid untagged vlan vlan-id

    The interface is added to the VLAN in untagged mode.

    The specified VLAN ID must exist on the switch. You do not need to create a VLAN specified by the original VLAN tag of a received packet.

  5. Configure only selective QinQ or configure selective QinQ and VLAN mapping.

    • Configure only selective QinQ.

      Run the port vlan-stacking vlan vlan-id1 [ to vlan-id2 ] stack-vlan vlan-id3 [ remark-8021p 8021p-value ] command to configure only selective QinQ.

      • By default, the priority in the stacked outer VLAN tag is 0 on SA cards of S series switches, and is the same as that in the inner VLAN tag on other cards.

      • VLAN Switch stack-vlan can also add outer VLAN tags based on inner VLAN tags. For details, see VLAN Switch Configuration.

    • Configure selective QinQ and VLAN mapping.

      Run the port vlan-stacking vlan vlan-id1 [ to vlan-id2 ] stack-vlan vlan-id3 [ remark-8021p 8021p-value3 ] map-vlan vlan-id4 command to configure selective QinQ and VLAN mapping.

      NOTE:

      LE1D2S04SEC0, LE1D2X32SEC0, LE1D2H02QEC0, and X series cards do not support this function.

      If selective QinQ and VLAN mapping are configured, the device can only map incoming packets.

  6. Run quit

    Exit from the interface view.

  7. Run interface interface-type interface-number

    The view of another interface is displayed.

    This interface is the outbound interface for QinQ packets, different from the interface specified in step 2.

  8. Run port link-type trunk

    The link type of the interface is set to trunk.

  9. Run port trunk allow-pass vlan vlan-id3

    The outer VLAN ID (stack-vlan) added to the original tagged packet is set.

Verifying the Configuration

  • Run the display current-configuration interface interface-type interface-number command to check the selective QinQ configuration on the interface.

Configuration Tips

Deleting the QinQ configuration

Use either of the following methods to delete the selective QinQ configuration on an interface:
  • Run the undo port vlan-stacking vlan vlan-id1 [ to vlan-id2 ] [ stack-vlan vlan-id3 ] command in the interface view to delete a selective QinQ entry on the interface.
  • Run the undo port vlan-stacking all command in the interface view to delete all selective QinQ entries on the interface.
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Updated: 2019-01-18

Document ID: EDOC1100038290

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