BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?'

Mark Tinka mark.tinka at
Wed Sep 9 04:28:48 UTC 2020

On 8/Sep/20 22:02, Tom Beecher via NANOG wrote:

> I also get that intent from the OP. However I disagree that there
> should be a 'de facto' standard created for such things. All flavors
> of BGP community specifications are designed to be flexible so that
> different networks can design a system that is tailored to their needs. 
> Having 'de facto' standards does not simplify in my opinion. I
> believe it just creates more work for operators trying to navigate
> around different opinions of what 'de facto' means.


Consider a new ISP starting operations in Myanmar, with little or no
global peering, having to wade through tons of information to design
their BGP community structure based on a "de facto" standard defined by
a group of ISP's half-way around the world.

What's the real value?


More information about the NANOG mailing list