Cisco Catalyst 3120 Software Manual page 16

Contents
Configuring MSTP
18
C H A P T E R
Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide
xvi
Forwarding State
Disabled State
17-7
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
VLAN-Bridge Spanning Tree
Spanning Tree and Switch Stacks
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 Port Priority
Configuring 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 the Transmit Hold-Count
Displaying the Spanning-Tree Status
18-1
Understanding MSTP
18-2
Multiple Spanning-Tree Regions
IST, CIST, and CST
18-3
Operations Within an MST Region
Operations Between MST Regions
IEEE 802.1s Terminology
Hop Count
18-5
Boundary Ports
18-6
17-7
17-8
17-9
17-9
17-10
17-10
17-11
17-11
17-12
17-12
17-13
17-13
17-15
17-16
17-16
17-18
17-18
17-20
17-21
17-22
17-22
17-24
17-24
18-2
18-3
18-4
18-5
17-8
17-11
17-23
17-23
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