Cisco Catalyst 2960 series Configuration Manual page 13

Contents
C H A P T E R 1 6
How a Switch or Port Becomes the Root Switch or Root Port
Spanning Tree and Redundant Connectivity
Spanning-Tree Address Management
Accelerated Aging to Retain Connectivity
Spanning-Tree Modes and Protocols
Supported Spanning-Tree Instances
Spanning-Tree Interoperability and Backward Compatibility
STP and IEEE 802.1Q Trunks
VLAN-Bridge Spanning Tree
Spanning Tree and Switch Stacks
Default Spanning-Tree Configuration
How to Configure Spanning-Tree Features
Changing the Spanning-Tree Mode
Disabling Spanning Tree
Configuring the Root Switch
Configuring a Secondary Root Device
Configuring Port Priority
Configuring Path Cost
Configuring the Device Priority of a VLAN
Configuring the Hello Time
Configuring the Forwarding-Delay Time for a VLAN
Configuring the Maximum-Aging Time for a VLAN
Configuring the Transmit Hold-Count
Monitoring Spanning-Tree Status
Feature Information for STP
Configuring Multiple Spanning-Tree Protocol
Finding Feature Information
Prerequisites for MSTP
Restrictions for MSTP
Information About MSTP
MSTP Configuration
MSTP Configuration Guidelines
Root Switch
244
Multiple Spanning-Tree Regions
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
220
221
221
222
222
223
223
224
224
226
227
229
230
231
233
234
237
238
239
241
241
241
242
243
243
243
245
219
219
220
222
235
236
xiii