BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?'
nanog at ics-il.net
Wed Sep 9 12:47:50 UTC 2020
Exactly. There are far more pressing things when launching a new network than coming up with a BGP community scheme from scratch, learning everyone else's BGP community scheme, etc. If networks used a standard, then there is a very minimal ramp-up.
Intelligent Computing Solutions
----- Original Message -----
From: "Mark Tinka" <mark.tinka at seacom.com>
To: "Mike Hammett" <nanog at ics-il.net>
Cc: nanog at nanog.org
Sent: Wednesday, September 9, 2020 6:47:13 AM
Subject: Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?'
On 9/Sep/20 13:41, Mike Hammett wrote:
How is that any different than any other network with minimal connectivity (say a non-ISP such as a school, medium business, local government, etc.)?
Because the existing flexibility of dis-aggregated BGP community design can be done without any need to be in concert with the rest of the world, and your network won't blow up. There are far more pressing things to consider when launching a new network.
Also, it would likely help that new ISP in Myanmar learn their limited upstream's communities if there were a standard.
There used to be a very large global transit network that did not support BGP communities for their customers or peers. I'm not sure if that is still their position in 2020, but back then, it did not stop them from growing quite well.
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