Protecting Switches Against Layer 2 Loops


Can a Layer 2 loop happen in your campus network? You may say, I am running Spanning Tree Protocol (STP), and it is designed to maintain a loop-free layer 2 topology. This is true, but despite the use of STP, some scenarios such as wiring mistakes, unauthorized use of devices, misconfigured hosts, or switch configuration errors can lead to spanning tree loops. In the article Protecting a Cisco Catalyst 6500 Switch Against Layer 2 Loops I present the steps I followed to develop a solution to alleviate the impact of a Layer 2 loop on a Catalyst 6500 switch.

I hope this may help!


2 responses to “Protecting Switches Against Layer 2 Loops

  1. This is great that people are able to receive the business loans and this opens up completely new chances.

  2. protecting networks at layer 2 is too often overlooked, these are pretty good suggestions and I really liked the charts as evidence of the results!

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