O'Reilly logo

CCNP Practical Studies: Troubleshooting by Donna L. Harrington

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

STP

Lots of things in networking are based on trees, branches, and leaves. STP is no exception. My intent is not to give you a book or chapter that tells you everything you need to know about STP, but rather to review the critical components and analyze it from the practical perspective.

You, like many other network engineers, might consider STP to be one of those theory things that you never have to worry with in the practical world. However, the truth is STP accounts for more than half of the issues with configuring, maintaining, and supporting campus networks.

STP is so critical because it is a dynamic loop prevention protocol for Layer 2. Time to live (TTL) does not exist at Layer 2; STP is what prevents frames from looping endlessly around ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required