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

2020-09-08 Thread Douglas Fischer via NANOG
*Tuesday, September 8, 2020 1:30:19 PM > *Subject: *Re: BGP Community - AS0 is de-facto "no-export-to" marker - > Any ASN reserved to "export-only-to"?' > > BGP Large Communities ( https://tools.ietf.org/html/rfc8195 ) already > provides for anyone to define the exact h

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

2020-09-08 Thread Douglas Fischer via NANOG
Most of us have already used some BGP community policy to no-export some routes to some where. On the majority of IXPs, and most of the Transit Providers, the very common community tell to route-servers and routers "Please do no-export these routes to that ASN" is: -> 0: So we could say that