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Switch
2950 - Catalyst Switch
Software configuration manual
Cisco Catalyst 2950 Software Configuration Manual page 12
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Configuration manual
(710 pages)
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Command reference manual
(686 pages)
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Software configuration manual
(544 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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Contents
Configuring STP
13
C H A P T E R
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
xii
13-1
Understanding Spanning-Tree Features
STP Overview
13-2
Spanning-Tree Topology and BPDUs
Bridge ID, Switch Priority, and Extended System ID
Spanning-Tree Interface States
Blocking State
13-6
Listening State
13-6
Learning State
13-6
Forwarding State
Disabled State
13-7
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
Configuring Spanning-Tree Features
Default Spanning-Tree Configuration
Spanning-Tree Configuration Guidelines
Changing the Spanning-Tree Mode
Disabling Spanning Tree
Configuring the Root Switch
Configuring a Secondary Root Switch
Configuring the Port Priority
Configuring the Path Cost
Configuring the Switch Priority of a VLAN
Configuring Spanning-Tree Timers
Configuring the Hello Time
Configuring the Forwarding-Delay Time for a VLAN
Configuring the Maximum-Aging Time for a VLAN
Configuring Spanning Tree for Use in a Cascaded Stack
Displaying the Spanning-Tree Status
13-1
13-2
13-4
13-6
13-8
13-8
13-8
13-9
13-9
13-10
13-11
13-11
13-12
13-13
13-14
13-14
13-16
13-17
13-18
13-20
13-20
13-21
13-24
13-3
13-7
13-10
13-22
13-22
13-23
78-11380-12
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Troubleshooting
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Chapter 31 Troubleshooting
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