3.8.2 VLANIF Interface Goes Down...............................................................................................................................119

3.9 References..................................................................................................................................................................119

4 QinQ Configuration..................................................................................................................121

4.1 Introduction to QinQ..................................................................................................................................................122

4.2 QinQ Principles..........................................................................................................................................................122

4.2.1 QinQ Fundamentals.................................................................................................................................................122

4.2.2 Basic QinQ..............................................................................................................................................................124

4.2.3 Selective QinQ.........................................................................................................................................................125

4.2.4 TPID........................................................................................................................................................................126

4.3 Application Environment...........................................................................................................................................127

4.4 Configuration Task Summary....................................................................................................................................129

4.5 Configuration Notes...................................................................................................................................................129

4.6 Configuring QinQ.......................................................................................................................................................130

4.6.1 Configuring QinQ Tunneling..................................................................................................................................130

4.6.1.1 Configuring Basic QinQ.......................................................................................................................................130

4.6.1.2 Configuring Selective QinQ.................................................................................................................................131

4.6.2 Configuring the TPID Value in an Outer VLAN Tag.............................................................................................133

4.7 Configuration Examples.............................................................................................................................................134

4.7.1 Example for Configuring Basic QinQ.....................................................................................................................134

4.7.2 Example for Configuring Selective QinQ...............................................................................................................137

4.8 References..................................................................................................................................................................141

5 GVRP Configuration................................................................................................................142

5.1 Introduction to GVRP.................................................................................................................................................143

5.2 Principles....................................................................................................................................................................144

5.2.1 Basic Concepts........................................................................................................................................................144

5.2.2 Packet Structure.......................................................................................................................................................147

5.2.3 Working Procedure..................................................................................................................................................148

5.3 Applications................................................................................................................................................................152

5.4 Default Configuration.................................................................................................................................................152

5.5 Configuring GVRP.....................................................................................................................................................153

5.5.1 Enabling GVRP.......................................................................................................................................................153

5.5.2 (Optional) Setting the Registration Mode for a GVRP Interface............................................................................154

5.5.3 (Optional) Setting the GARP Timers......................................................................................................................155

5.5.4 Checking the Configuration.....................................................................................................................................156

5.6 Maintaining GVRP.....................................................................................................................................................156

5.6.1 Clearing GVRP Statistics........................................................................................................................................156

5.7 Configuration Examples.............................................................................................................................................157

5.7.1 Example for Configuring GVRP.............................................................................................................................157

5.8 References..................................................................................................................................................................160

6 STP/RSTP Configuration.........................................................................................................161

Issue 01 (2014-11-30)

Huawei Proprietary and Confidential

viii

Table of Contents