Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide User Manual
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VLAN tags and dual mode.............................................................. 319
Configuring PVST+ support............................................................ 319
Displaying PVST+ support information........................................... 320
PVST+ configuration examples.......................................................321
Enabling BPDU protection by port.................................................. 324
Re-enabling ports disabled by BPDU guard................................... 324
Displaying the BPDU guard status..................................................324
BPDU guard status example console messages ...........................325
Enabling STP root guard.................................................................326
Displaying the STP root guard........................................................ 327
Displaying the root guard by VLAN.................................................327
Enabling an error-disabled port automatically.................................328
Enabling an error-disabled port manually....................................... 329
Setting the recovery interval............................................................329
Displaying the error disable recovery state by interface ................ 329
Displaying the recovery state for all conditions...............................330
Displaying the recovery state by port number and cause............... 330
Errdisable Syslog messages...........................................................330
802.1s Multiple Spanning Tree Protocol..................................................... 330
Multiple spanning-tree regions .......................................................331
Configuration notes.........................................................................332
Configuring MSTP mode and scope............................................... 332
Reduced occurrences of MSTP reconvergence............................. 333
Configuring additional MSTP parameters....................................... 335
Supported VLAN features........................................................................... 345
VLAN overview............................................................................................346
Types of VLANs.............................................................................. 346
Modifying a port-based VLAN......................................................... 351
Default VLAN.................................................................................. 361
802.1Q tagging................................................................................362
Spanning Tree Protocol (STP)........................................................364
Virtual routing interfaces................................................................. 365
VLAN and virtual routing interface groups...................................... 366
Dynamic, static, and excluded port membership............................ 367
Super aggregated VLANs............................................................... 370
Trunk group ports and VLAN membership......................................370
Summary of VLAN configuration rules............................................370
Virtual routing interfaces (Layer 2 Switches only)...........................371
Routing between VLANs using virtual routing interfaces (Layer
3 Switches only)........................................................................ 372
Dynamic port assignment (Layer 2 Switches and Layer 3
Switches)...................................................................................373
Assigning a different VLAN ID to the default VLAN........................ 373
Assigning different VLAN IDs to reserved VLANs 4091 and 4092. 373
Assigning trunk group ports............................................................ 374
Enable spanning tree on a VLAN....................................................374
Configuring IP subnet, IPX network and protocol-based VLANs................ 376
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FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide
53-1003086-04