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FAQ-What Is QinQ Based on the Interface and VLAN

Publication Date:  2012-07-27 Views:  34 Downloads:  0
Issue Description
Q:
What is QinQ based on the interface and VLAN? 
 
Alarm Information
Null
Handling Process
A:
1. QinQ based on the interface
The packet received by the interface is added with a fixed tag.
Configuration command: The interface type needs to be configured to dot1q-tunnel and the VLAN type to port default vlan.
Role of QinQ based on the interface: A packet received by an interface, whether it carries a tag, will be added with a tag. For example, if port default vlan 500 is configured on an interface, the packet received by the interface will be added with tag 500.
2. QinQ based on VLAN
Different tags are added based on the tags carried in the packet received by an interface.
Configuration command: The interface type can be configured to trunk or hybrid and port vlan-stacking outside-vlan * stacking-vlan # is configured.
Role of QinQ based on the interface: When the packet received by an interface carries tag*, tag# will be added. 
 
Root Cause
Null
Suggestions
Null

END