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AT-S63 Management Software Features Guide
7
Chapter 21: Multiple Spanning Tree Protocol ........................................................................................... 225
Supported Platforms....................................................................................................................................... 226
Overview......................................................................................................................................................... 227
Multiple Spanning Tree Instance (MSTI)........................................................................................................ 228
MSTI Guidelines............................................................................................................................................. 232
VLAN and MSTI Associations ........................................................................................................................ 233
Ports in Multiple MSTIs................................................................................................................................... 234
Multiple Spanning Tree Regions .................................................................................................................... 235
Region Guidelines.................................................................................................................................... 237
Common and Internal Spanning Tree (CIST) .......................................................................................... 238
MSTP with STP and RSTP ...................................................................................................................... 238
Summary of Guidelines .................................................................................................................................. 239
Associating VLANs to MSTIs.......................................................................................................................... 241
Connecting VLANs Across Different Regions ................................................................................................ 243
Section VI: Virtual LANs ....................................................................................... 245
Chapter 22: Port-based and Tagged VLANs ............................................................................................. 247
Supported Platforms....................................................................................................................................... 248
Overview......................................................................................................................................................... 249
Port-based VLAN Overview............................................................................................................................ 251
VLAN Name ............................................................................................................................................. 251
VLAN Identifier......................................................................................................................................... 251
Untagged Ports ........................................................................................................................................ 252
Port VLAN Identifier ................................................................................................................................. 252
Guidelines to Creating a Port-based VLAN.............................................................................................. 253
Drawbacks of Port-based VLANs............................................................................................................. 253
Port-based Example 1.............................................................................................................................. 254
Port-based Example 2.............................................................................................................................. 255
Tagged VLAN Overview................................................................................................................................. 257
Tagged and Untagged Ports.................................................................................................................... 258
Port VLAN Identifier ................................................................................................................................. 258
Guidelines to Creating a Tagged VLAN................................................................................................... 258
Tagged VLAN Example............................................................................................................................ 259
Chapter 23: GARP VLAN Registration Protocol ....................................................................................... 261
Supported Platforms....................................................................................................................................... 262
Overview......................................................................................................................................................... 263
Guidelines....................................................................................................................................................... 266
GVRP and Network Security .......................................................................................................................... 267
GVRP-inactive Intermediate Switches............................................................................................................ 268
Generic Attribute Registration Protocol (GARP) Overview............................................................................. 269
Chapter 24: Multiple VLAN Modes ............................................................................................................. 273
Supported Platforms....................................................................................................................................... 274
Overview......................................................................................................................................................... 275
802.1Q- Compliant Multiple VLAN Mode........................................................................................................ 276
Non-802.1Q Compliant Multiple VLAN Mode................................................................................................. 278
Chapter 25: Protected Ports VLANs .......................................................................................................... 279
Supported Platforms....................................................................................................................................... 280
Overview......................................................................................................................................................... 281
Guidelines....................................................................................................................................................... 283