Cisco Catalyst 2960 Series

How a Switch or Port Becomes the Root Switch or Root Port 219
Spanning Tree and Redundant Connectivity 219
Spanning-Tree Address Management 220
Accelerated Aging to Retain Connectivity 220
Spanning-Tree Modes and Protocols 221
Supported Spanning-Tree Instances 221
Spanning-Tree Interoperability and Backward Compatibility 222
STP and IEEE 802.1Q Trunks 222
VLAN-Bridge Spanning Tree 222
Spanning Tree and Switch Stacks 223
Default Spanning-Tree Configuration 223
How to Configure Spanning-Tree Features 224
Changing the Spanning-Tree Mode 224
Disabling Spanning Tree 226
Configuring the Root Switch 227
Configuring a Secondary Root Device 229
Configuring Port Priority 230
Configuring Path Cost 231
Configuring the Device Priority of a VLAN 233
Configuring the Hello Time 234
Configuring the Forwarding-Delay Time for a VLAN 235
Configuring the Maximum-Aging Time for a VLAN 236
Configuring the Transmit Hold-Count 237
Monitoring Spanning-Tree Status 238
Feature Information for STP 239
CHAPTER 16 Configuring Multiple Spanning-Tree Protocol 241
Finding Feature Information 241
Prerequisites for MSTP 241
Restrictions for MSTP 242
Information About MSTP 243
MSTP Configuration 243
MSTP Configuration Guidelines 243
Root Switch 244
Multiple Spanning-Tree Regions 245
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
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Contents