Configuring the Maximum-Hop Count 274
Specifying the Link Type to Ensure Rapid Transitions 275
Designating the Neighbor Type 277
Restarting the Protocol Migration Process 278
Configuring PVST+ Simulation 279
Enabling PVST+ Simulation on a Port 280
Examples 281
Examples: PVST+ Simulation 281
Examples: Detecting Unidirectional Link Failure 284
Monitoring MST Configuration and Status 285
Feature Information for MSTP 285
CHAPTER 17
Configuring Optional Spanning-Tree Features 287
Finding Feature Information 287
Restriction for Optional Spanning-Tree Features 287
Information About Optional Spanning-Tree Features 288
PortFast 288
BPDU Guard 288
BPDU Filtering 289
UplinkFast 290
Cross-Stack UplinkFast 291
How Cross-Stack UplinkFast Works 292
Events That Cause Fast Convergence 294
BackboneFast 294
EtherChannel Guard 297
Root Guard 297
Loop Guard 298
STP PortFast Port Types 298
Bridge Assurance 299
How to Configure Optional Spanning-Tree Features 302
Enabling PortFast 302
Enabling BPDU Guard 304
Enabling BPDU Filtering 305
Enabling UplinkFast for Use with Redundant Links 307
Disabling UplinkFast 308
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
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Contents