Contents
8
Associating VLANs to MSTIs.................................................. ... ... .... ... ... ... .... ... ... ... ... .... ... ... ... ........................305
Connecting VLANs Across Different Regions......................................................................... .... ... ... ...... ........307
Section VI: Virtual LANs .......................................................................................309
Chapter 27: Port-based and Tagged VLANs ..............................................................................................311
Supported Platforms........ ............................................................................................................................... 312
Overview............................................. ............................................................................................................ 313
Port-based VLAN Overview....................................... .....................................................................................315
VLAN Name................................................................................................................................... ...........315
VLAN Identifier ......................................................................................................................................... 315
Untagged Ports................................................................................................................................. ........316
Port VLAN Identifier....................................................................................... ... ... .... .................................316
Guidelines to Creating a Port-based VLAN...................................... ........................................................317
Drawbacks of Port-based VLANs..................................... ........................................................................317
Port-based Example 1................................................................ ..............................................................318
Port-based Example 2................................................................ ..............................................................319
Tagged VLAN Overview ................................................................................................................................ .321
Tagged and Untagged Ports .................................................................................................................... 322
Port VLAN Identifier....................................................................................... ... ... .... .................................322
Guidelines to Creating a Tagged VLAN ................................................................................................... 322
Tagged VLAN Example.......................................................... ..................................................................323
Chapter 28: GARP VLAN Registration Protocol ........................................................................................325
Supported Platforms........ ............................................................................................................................... 326
Overview............................................. ............................................................................................................ 327
Guidelines............................................... ........................................................................................................ 330
GVRP and Network Security............................................................................................. ..............................331
GVRP-inactive Intermediate Switches............................. ...............................................................................332
Generic Attribute Registration Protocol (GARP) Overview.................................. ...........................................333
Chapter 29: Multiple VLAN Modes .............................................................................................................. 337
Supported Platforms........ ............................................................................................................................... 338
Overview............................................. ............................................................................................................ 339
802.1Q- Compliant Multiple VLAN Mode.......................................... ..............................................................340
Non-802.1Q Compliant Multiple VLAN Mode ................................................................................................. 342
Chapter 30: Protected Ports VLANs ...................................................................... .....................................343
Supported Platforms........ ............................................................................................................................... 344
Overview............................................. ............................................................................................................ 345
Guidelines............................................... ........................................................................................................ 347
Chapter 31: MAC Address-based VLANs .................................... ..............................................................349
Supported Platforms........ ............................................................................................................................... 350
Overview............................................. ............................................................................................................ 351
Egress Ports .................................................................................................................................. .................352
VLANs That Span Switches.............................................................................. ..............................................355
VLAN Hierarchy.................. ............................................................................................................................ 357
Steps to Creating a MAC Address-based VLAN............................................................................................. 358
Guidelines............................................... ........................................................................................................ 359