Contents
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Catalyst 3750 Switch Software Configuration Guide
78-16180-02
Adjusting Spanning-Tree Parameters 38-6
Changing the VLAN-Bridge Spanning-Tree Priority 38-7
Changing the Interface Priority 38-7
Assigning a Path Cost 38-8
Adjusting BPDU Intervals 38-9
Disabling the Spanning Tree on an Interface 38-11
Monitoring and Maintaining Fallback Bridging 38-11
CHAPTER
39 Troubleshooting 39-1
Recovering from Corrupted Software By Using the Xmodem Protocol 39-2
Recovering from a Lost or Forgotten Password 39-4
Procedure with Password Recovery Enabled 39-5
Procedure with Password Recovery Disabled 39-6
Preventing Switch Stack Problems 39-8
Recovering from a Command Switch Failure 39-9
Replacing a Failed Command Switch with a Cluster Member 39-9
Replacing a Failed Command Switch with Another Switch 39-11
Recovering from Lost Cluster Member Connectivity 39-12
Preventing Autonegotiation Mismatches 39-13
Troubleshooting Power over Ethernet Switch Ports 39-13
SFP Module Security and Identification 39-13
Monitoring SFP Module Status 39-14
Using Ping 39-14
Understanding Ping 39-14
Executing Ping 39-15
Using Layer 2 Traceroute 39-16
Understanding Layer 2 Traceroute 39-16
Usage Guidelines 39-16
Displaying the Physical Path 39-17
Using IP Traceroute 39-17
Understanding IP Traceroute 39-17
Executing IP Traceroute 39-18
Using TDR 39-19
Understanding TDR 39-19
Running TDR and Displaying the Results 39-20
Using Debug Commands 39-21
Enabling Debugging on a Specific Feature 39-22
Enabling All-System Diagnostics 39-22
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