Advanced BGP - BGP Communities
5 important questions on Advanced BGP - BGP Communities
What are BGP communities?
It's 32-bit number which can be displayed as a full 32 bit number (0-4.294.967.295) or as two 16 bit numbers (0-65535):(0-65535), reffered to as new format
What are Private BGP Communities
RFC 1997 defines a set of global communities known as well-known communities. What is the range of these communities and what are 3 common well known communities?
Three well known communities are:
1. Internet (for routes that should be advertised to/on the Internet)
2. No_Advertise (Should not be advertised to any peer (iBGP or eBGP)
3. No_Export (Should only be advertised to iBGP peers, not to eBGP peers)
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What is important to note about advertising the BGP Communities to neighbors?
In BGP, what are community lists and what are they used for?
The question on the page originate from the summary of the following study material:
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