Contents
xxxvii
Catalyst 3750 Switch Software Configuration Guide
OL-8550-02
Configuring Fallback Bridging 42-3
Default Fallback Bridging Configuration 42-4
Fallback Bridging Configuration Guidelines 42-4
Creating a Bridge Group 42-4
Adjusting Spanning-Tree Parameters 42-6
Changing the VLAN-Bridge Spanning-Tree Priority 42-6
Changing the Interface Priority 42-7
Assigning a Path Cost 42-7
Adjusting BPDU Intervals 42-8
Disabling the Spanning Tree on an Interface 42-10
Monitoring and Maintaining Fallback Bridging 42-11
CHAPTER
43 Troubleshooting 43-1
Recovering from a Software Failure 43-2
Recovering from a Lost or Forgotten Password 43-3
Procedure with Password Recovery Enabled 43-4
Procedure with Password Recovery Disabled 43-6
Preventing Switch Stack Problems 43-7
Recovering from a Command Switch Failure 43-8
Replacing a Failed Command Switch with a Cluster Member 43-9
Replacing a Failed Command Switch with Another Switch 43-11
Recovering from Lost Cluster Member Connectivity 43-12
Preventing Autonegotiation Mismatches 43-12
Troubleshooting Power over Ethernet Switch Ports 43-13
Disabled Port Caused by Power Loss 43-13
Disabled Port Caused by False Link Up 43-13
SFP Module Security and Identification 43-13
Monitoring SFP Module Status 43-14
Monitoring Temperature 43-14
Using Ping 43-14
Understanding Ping 43-14
Executing Ping 43-15
Using Layer 2 Traceroute 43-16
Understanding Layer 2 Traceroute 43-16
Usage Guidelines 43-16
Displaying the Physical Path 43-17
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