BGP - What are BGP Communities?

Опубликовано: 22 Март 2026
на канале: telecomTech
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BGP communities are BGP attributes that are added to a BGP update about a particular route. These attributes are used to affect things like traffic engineering, dynamic routing policies, or a whole slew of other capabilities.

In this video, we'll explore BGP communities so that we can gain a better understanding of what they are and what their purpose is.

☑️ Chapter list:
============================================
00:00 Introduction
00:29 What are BGP Communities?
01:22 Details of Community Operation
02:02 Well-Known Communities
03:34 Well-Known Communities in Action
05:57 Custom Communities
08:11 Summary

Corrections:
1:39 The range is actually from 0 to 65535, not 65536!! Thanks to ‪@stephenwilson797‬ for pointing this out!

🟩 Related Videos and Links:
===============================================
Video: What are BGP Confederations? -    • BGP - Understanding BGP Confederations  
Video: What is the AS_PATH Attribute? -    • BGP - What is the AS_Path Attribute?  
Video: What is the BGP Local Preference Attribute? -    • BGP - What is the Local Preference BGP Att...  
Video: What is BGP? -    • What is BGP?  
Video: eBGP vs iBGP - What's the difference? -    • eBGP vs iBGP - What's the difference?  
Video: BGP attributes and determining the best path -    • BGP Attributes and Determining the Best Path  
Video: BGP - Why does BGP require an IGP to function? -    • Why does BGP require an IGP to function?  
BGP Official Definition RFC 4271 - https://datatracker.ietf.org/doc/html...

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#bgp #bgpCommunities #bgpattributes #trafficengineering #routingpolicies #lazarusagapidis