3Com 4500G Family Configuration Manual page 183

1 QinQ Configuration ···································································································································1-1
Introduction to QinQ ································································································································1-1
Background and Benefits ················································································································1-1
How QinQ Works·····························································································································1-2
QinQ Frame Structure ·····················································································································1-2
Implementations of QinQ·················································································································1-3
Modifying the TPID in a VLAN Tag ·································································································1-3
Protocols and Standards ·················································································································1-4
QinQ Configuration Task List··················································································································1-5
Configuring Basic QinQ ··························································································································1-5
Enabling Basic QinQ ·······················································································································1-5
Configuring Selective QinQ·····················································································································1-5
Configuring an Outer VLAN Tagging Policy ····················································································1-5
Configuring the TPID Value in VLAN Tags ·····························································································1-6
QinQ Configuration Examples ················································································································1-6
Basic QinQ Configuration Example·································································································1-6
Comprehensive Selective QinQ Configuration Example·································································1-9
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