BGP - What is the Originate Attribute?

📚 Coming soon: Full networking courses, labs, quizzes, PDFs, and more!

The BGP originate attribute is used by the protocol's best path algorithm to compare locally originated routes with those learned from BGP peers. A BGP router will prefer the path that was originated by the local BGP router over routes learned from BGP peers. In this video, I'll be explaining how this attribute is used, and how it can affect the decisions made by BGP when choosing the best path.

Note, the Originate attribute should not be confused with the Origin attribute which is a separate attribute examined further down the algorithm process.

Border Gateway Protocol, or BGP, is a routing protocol that uses a series of attributes to determine the best path through large networks such as the Internet. These attributes are examined in a standardized and predefined sequential order.

If you want to find out more about the BGP routing protocol, or the method by which attributes are used to determine the best path, take a look at some of my other videos linked below (after the chapter list...)

☑️ Chapter list:
============================================
00:00 Introduction
00:22 What is the Originate Attribute?
00:42 Originate Attribute as a Tie Breaker
02:59 Originate in the BGP Algorithm
04:59 Self-Originated Routes in the RFC
05:57 Summary

🟩 Related Videos and Links:
===============================================

🟦 About
==============================================
Welcome to telecomTech, where telecom and networking technologies... are simply explained! I’m Lazarus, a telecom professional with over 25 years of experience in network design, architecture, and telecom technologies. Over my career, I’ve led major projects, trained professionals, and helped countless individuals earn certifications and advance their careers.

My goal is to make networking and telecom concepts clear, practical, and engaging—the way I wish they were taught when I started learning!

Whether you’re a student, a professional growing your skills, or you're preparing for certification exams such as Cisco, telecomTech is here to guide you. Every video is crafted to help you solve real-world challenges with confidence and curiosity.

Join me as we explore telecom and networking as a lifelong passion, not just as a job. Let’s make this journey of growth and discovery together!

#bgp #BGPAttributeExplained #InternetProtocol #lazarusagapidis

[freddyafeldt]

I had some difficulties to distinguish between the originate and origin attributes but with your videos it all made it clear, many thanks and keep up the great work!

[KylePaynter]

Best explanations for BGP to date for me

[arielnavarro]

very clear, easy to understand, Thank you

[miguelpenaloza]

Studying for my CCNP currently. This video helped to clear any confusion I had. Thank you :) Just subscribed!

[Jessgeorge]

You hav cleared my doubt so well, i am so thankful for your videos

[benedictagyemang]

Thanks very much for sharing, I just found out about your youtube page and I have just subscribed.

[SajadAhmadi-uoth]

Interesting one. I have read subjects about EIGRP Split Horizon feature but I am unsure about "iBGP Split Horizon" as you have called it in the video. Would you please explain a bit about this term or maybe make a video about it ?

[faizansirajuddin]

As earlier we have seen the weight attribute is applied with neighbour command . However locally originated route doesn’t learned from neighbour.than how can we set weight of that route to 0?

[etet]

Hi Lazaros! If R2 wants to join 20.20.20.0/24, the route installed in the routing table will be learned from another routing protocol with a lower AD right? Like OSPF, or directly connected. Are there any case where iBGP installs such a route in the routing table?
In other words, a redistributed route will always have a better AD than iBGP so it won't be chosen. What do I miss?
Cheers