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Configuring Qualified MAC Learning

Qualified MAC learning enables a device to learn the MAC addresses of network nodes by learning the innermost VLAN tag of single vlan-tagged, 2-tagged , or 3-tagged ingress packets without deleting the outer tag (using the pop operation).

To enable qualified MAC learning on the innermost VLAN tag for 2 or 3 tagged packets:

  1. In configuration mode, go to the [edit routing-instances] hierarchy level.
  2. Include the vlan-id inner-all statement.

For enabling qualified MAC learning on the third VLAN tag (innermost) of a 3-tagged packet, along with vlan-id inner-all, configure the deep-vlan-qualified-learning vlan_tag_number statement.

  1. In configuration mode, go to the edit interfaces interface-name unit logical_unit_number hierarchy level.

  2. Include the deep-vlan-qualified-learning vlan_tag_number statement.

    For bidirectional traffic flow, include the statement input-vlan-map pop.

  3. Verify learned MAC address information..

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