Enabling BackboneFast 309
Enabling EtherChannel Guard 310
Enabling Root Guard 312
Enabling Loop Guard 313
Enabling PortFast Port Types 314
Configuring the Default Port State Globally 314
Configuring PortFast Edge on a Specified Interface 315
Configuring a PortFast Network Port on a Specified Interface 317
Enabling Bridge Assurance 318
Examples 320
Examples: Configuring PortFast Edge on a Specified Interface 320
Examples: Configuring a PortFast Network Port on a Specified Interface 320
Example: Configuring Bridge Assurance 321
Monitoring the Spanning-Tree Status 322
Feature Information for Optional Spanning-Tree Features 322
CHAPTER 18
Configuring EtherChannels 323
Finding Feature Information 323
Restrictions for EtherChannels 323
Information About EtherChannels 324
EtherChannel Overview 324
EtherChannel Modes 325
EtherChannel on Switches 326
EtherChannel Link Failover 327
Channel Groups and Port-Channel Interfaces 327
Port Aggregation Protocol 328
PAgP Modes 329
Silent Mode 330
PAgP Learn Method and Priority 330
PAgP Interaction with Virtual Switches and Dual-Active Detection 331
PAgP Interaction with Other Features 331
Link Aggregation Control Protocol 332
LACP Modes 332
LACP Interaction with Other Features 333
EtherChannel On Mode 333
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
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