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Catalyst 2950 Desktop Switch Software Configuration Guide
78-14982-01
Configuring a Secondary Root Switch 12-16
Configuring the Port Priority 12-17
Configuring the Path Cost 12-18
Configuring the Switch Priority 12-19
Configuring the Hello Time 12-19
Configuring the Forwarding-Delay Time 12-20
Configuring the Maximum-Aging Time 12-21
Configuring the Maximum-Hop Count 12-21
Specifying the Link Type to Ensure Rapid Transitions 12-22
Restarting the Protocol Migration Process 12-22
Displaying the MST Configuration and Status 12-23
CHAPTER
13 Configuring Optional Spanning-Tree Features 13-1
Understanding Optional Spanning-Tree Features 13-1
Understanding Port Fast 13-2
Understanding BPDU Guard 13-3
Understanding BPDU Filtering 13-3
Understanding UplinkFast 13-4
Understanding Cross-Stack UplinkFast 13-5
How CSUF Works 13-6
Events That Cause Fast Convergence 13-7
Limitations 13-8
Connecting the Stack Ports 13-8
Understanding BackboneFast 13-10
Understanding Root Guard 13-12
Understanding Loop Guard 13-13
Configuring Optional Spanning-Tree Features 13-13
Default Optional Spanning-Tree Configuration 13-14
Enabling Port Fast 13-14
Enabling BPDU Guard 13-15
Enabling BPDU Filtering 13-16
Enabling UplinkFast for Use with Redundant Links 13-17
Enabling Cross-Stack UplinkFast 13-18
Enabling BackboneFast 13-19
Enabling Root Guard 13-19
Enabling Loop Guard 13-20
Displaying the Spanning-Tree Status 13-21