# To enable interoperability with the third-party switches in the public network, set the TPID of the service
provider network VLAN tags to 0x8200. The port then tags the received frames with the outer VLAN tag
whose TPID is 0x8200.
[ProviderB-Ethernet1/0/1] quit
[ProviderB] qinq ethernet-type 8200
•
Configure Ethernet 1/0/2.
# Configure VLAN 2000 as the PVID.
[ProviderB] interface Ethernet 1/0/2
[ProviderB-Ethernet1/0/2] port access vlan 2000
# Enable basic QinQ. Tag frames from VLAN 20 with the outer VLAN tag 2000.
[ProviderB-Ethernet1/0/2] qinq enable
[ProviderB-Ethernet1/0/2] quit
•
Configure Ethernet 1/0/3.
# Configure VLAN 3000 as the PVID.
[ProviderB] interface Ethernet 1/0/3
[ProviderB-Ethernet1/0/3] port access vlan 3000
# Enable basic QinQ to tag frames of all customer VLANs with the outer VLAN tag 3000.
[ProviderB-Ethernet1/0/3] qinq enable
3.
Configure switches on the public network.
Third-party switches are deployed between Provider A and Provider B. This section describes only the
basic configuration required on the switches. Configure that switch that connects with Ethernet 1/0/3 of
Provider A and the switch that connects with Ethernet 1/0/1 of Provider B so that their ports send tagged
frames of VLAN 1000, VLAN 2000 and VLAN 3000. The configuration steps are not shown.
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