BGP - What is the AS_Path Attribute?

The AS Path BGP attribute is an important part of the BGP best path algorithm. The AS Path is a list of AS numbers that represents the ASes through which a packet must travel to get to the intended destination. A route with a shorter AS path is always preferred over a longer one. In this video, I'll be explaining in more detail how this attribute functions, and how it can be used to adjust the behavior of BGP.

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 AS_Path?
01:50 What is the AS_Path Attribute?
03:07 Influencing BGP using the AS_Path
04:34 Summary

Related links and videos:

===============================================

#BGP #NetworkingBasics #algorithm #lazarusagapidis #telecomtech

[shankargopalk]

So articulate! Just listening...is pleasing...and easy to follow!!!

[spacemonkey]

This guy is fantastic, love his videos.

[YutoCode]

thank you for this content. thanks to this I am able to understand the whole data routing in a computer network thanks again (:

[SajadAhmadi-uoth]

Fantastic. To further complete the topic (correct me if I am wrong), I would mention that we have to be extremely cautious about the process of prepending dummy AS to the AS_Path attribute in BGP to switchover between multiple BGP entries/routes in order to prevent Routing Loops.

[rangiert]

Hi, nice video!
I Think you forgot to put it in the BGP playlist.
Almost missed it.

[ananthanmuthiah]

Hello Sir, Question realated to AS no: We have only 64511 for public use which means we can have a maximum 64511 service providers globally. Is this sufficient for global use? Is there any plan to increase this number?. If multiple service providers are sharing the same public AS no, are there any security concerns?.