Orhan Ergun No Comments

Spanning Tree Best Practices

Spanning Tree Protocol (STP) is a control plane mechanism for Ethernet. It is used to create a Layer 2 topology (a tree) by placing the root switch on top of the tree.

Since classical Ethernet works based on data plane learning and Ethernet frames don’t have TTL for loop prevention, loops are prevented by the STP blocking the links.

As you can see from the below figure, some links are blocked by the spanning tree. If Spanning Tree wouldn’t block those links, loop would occur in the below topology.

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Orhan Ergun 27 Comments

Campus Network Design Scenario

In this post I will give you a campus network design scenario and as always will wait your answers.

You need to specify what are the mistakes, you need to recommend a technical solutions to Superent which is a fictitious company and don’t forget to give your answers based on customer requirements rather than industry best practices whenever if it is applicable.

If requirement is not given, you should follow the standards/best practices. Read more