CCNP ENCOR // Spanning Tree Protocol (STP) Algorithm // ENCOR 350-401 Complete Course

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This video covers the algorithm Spanning Tree Protocol (STP) uses to decide port roles and prevent layer 2 loops.

In this FREE and COMPLETE course for CCNP ENCOR 350-401, you will find lecture videos covering all topics in the Cisco official exam topics list, end-of-video quizzes to test your knowledge, flashcards to review, and practice labs to get hands-on experience. All you need in a single course, for free!

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0:00 Introduction
0:37 Things we'll cover
1:04 The need for STP
2:16 What does STP do?
3:40 The STP Algorithm
5:36 Root Bridge election
10:17 Root Port selection
13:37 Root Port selection: root cost
15:01 Root Port selection: lowest neighbor BID
15:53 Root Port selection: lowest neighbor port ID
17:47 Root Port selection: lowest local port ID
19:17 Designated Port selection
20:38 Designated Port selection: lowest root cost
21:51 Designated Port selection: lowest BID
22:32 Things we covered
23:02 Quiz
25:09 Thank you to supporters

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