johansens Tue, 12/27/2005 - 02:32
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It would help if you could say something about which platform and IOS or CatOS, but anyways, see these links:

"Troubleshooting STP on Catalyst Switches Running Cisco IOS System Software"

"Spanning Tree Protocol Problems and Related Design Considerations"

"Troubleshooting LAN Switching Environments"

"Spanning Tree Protocol - Troubleshooting TechNotes"

Did it help?


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