Displaying and maintaining GVRP ····························································································································· 169

GVRP configuration examples ···································································································································· 169

GVRP normal registration mode configuration example ················································································· 169

GVRP fixed registration mode configuration example ···················································································· 171

GVRP forbidden registration mode configuration example ············································································ 172

QinQ configuration················································································································································· 174

Introduction to QinQ ···················································································································································· 174

Background and benefits ···································································································································· 174

How QinQ works ················································································································································ 174

QinQ frame structure ·········································································································································· 175

Implementations of QinQ ··································································································································· 176

Modifying the TPID in a VLAN tag ···················································································································· 176

Protocols and standards ····································································································································· 177

QinQ configuration task list ········································································································································ 178

Configuring basic QinQ ············································································································································· 178

Enabling basic QinQ ·········································································································································· 178

Configuring VLAN transparent transmission ···································································································· 179

Configuring selective QinQ ········································································································································ 179

Configuring an outer VLAN tagging policy ····································································································· 179

Configuring an inner-outer VLAN 802.1p priority mapping ·········································································· 180

Configuring inner VLAN ID substitution ············································································································ 182

Configuring the TPID value in VLAN tags ·················································································································· 183

QinQ configuration examples ···································································································································· 183

Basic QinQ configuration example ··················································································································· 183

Simple selective QinQ configuration example ································································································· 186

Comprehensive selective QinQ configuration example ·················································································· 188

VLAN mapping configuration ································································································································ 193

VLAN mapping overview ············································································································································ 193

Application scenario of one-to-one and many-to-one VLAN mapping ·························································· 193

Application scenario of two-to-two VLAN mapping ························································································ 194

Concepts and terms ············································································································································ 195

VLAN mapping implementations ······················································································································· 196

Configuring VLAN mapping ······································································································································· 198

Configuring one-to-one VLAN mapping············································································································ 198

Configuring many-to-one VLAN mapping········································································································· 200

Configuring two-to-two VLAN mapping ············································································································ 203

VLAN mapping configuration examples ··················································································································· 206

One-to-one and many-to-one VLAN mapping configuration example ··························································· 206

Two-to-two VLAN mapping configuration example ························································································· 212

LLDP configuration ··················································································································································· 215

Overview ······································································································································································· 215

Background ·························································································································································· 215

Basic concepts ····················································································································································· 215

How LLDP works ·················································································································································· 219

LLDP configuration task list ·········································································································································· 220

Performing basic LLDP configuration ·························································································································· 221

Enabling LLDP ······················································································································································ 221

Setting the LLDP operating mode ······················································································································· 221

Setting the LLDP re-initialization delay··············································································································· 221

Enabling LLDP polling·········································································································································· 222

Configuring the advertisable TLVs ····················································································································· 222

Configuring the management address and its encoding format ···································································· 223