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Catalyst 2950 Desktop Switch Software Configuration Guide
78-11380-05
Spanning-Tree Interface States 10-5
Blocking State 10-7
Listening State 10-7
Learning State 10-7
Forwarding State 10-7
Disabled State 10-8
Spanning-Tree Address Management 10-8
STP and IEEE 802.1Q Trunks 10-8
Spanning Tree and Redundant Connectivity 10-8
Accelerated Aging to Retain Connectivity 10-9
Configuring Spanning-Tree Features 10-9
Default STP Configuration 10-10
STP Configuration Guidelines 10-10
Disabling STP 10-12
Configuring the Root Switch 10-12
Configuring a Secondary Root Switch 10-14
Configuring the Port Priority 10-15
Configuring the Path Cost 10-16
Configuring the Switch Priority of a VLAN 10-18
Configuring the Hello Time 10-19
Configuring the Forwarding-Delay Time for a VLAN 10-19
Configuring the Maximum-Aging Time for a VLAN 10-20
Configuring STP for Use in a Cascaded Stack 10-20
Displaying the Spanning-Tree Status 10-21
CHAPTER
11 Configuring RSTP and MSTP 11-1
Understanding RSTP 11-2
Port Roles and the Active Topology 11-2
Rapid Convergence 11-3
Synchronization of Port Roles 11-4
Bridge Protocol Data Unit Format and Processing 11-5
Processing Superior BPDU Information 11-6
Processing Inferior BPDU Information 11-6
Topology Changes 11-6
Understanding MSTP 11-7
Multiple Spanning-Tree Regions 11-7
IST, CIST, and CST 11-8
Operations Within an MST Region 11-8
Operations Between MST Regions 11-9