Configuring Tag Profile

To enable IEEE 802.1ad tagging, configure an IEEE 802.1Q tag on the untagged edge links (the customer ports) to any value other than the IEEE 802.1Q tag for incoming traffic. For example, in Example IEEE 802.1ad Configuration, the IEEE 802.1Q tag on the untagged edge links (ports 1/1/11 and 1/1/12) is 9100, whereas the IEEE 802.1Q tag for incoming traffic is 8100.

To configure IEEE 802.1ad tagging as shown in Example IEEE 802.1ad Configuration, enter commands such as the following on the untagged edge links of devices C and D.

  1. Enter the global configuration mode.
    device# configure terminal
  2. Configure tag profile.
    device(config)# tag-profile 9100
  3. Enable tag profile for multiple ports.
    device(config)# interface ethernet 1/1/11 ethernet 1/1/12
    device(config-mif-1/1/11,1/1/12)# tag-profile enable
  4. Enable VLAN aggregation.
    device(config)# aggregated-vlan