nanog mailing list archives
Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?'
From: Mark Tinka via NANOG <nanog () nanog org>
Date: Wed, 9 Sep 2020 18:08:30 +0200
On 9/Sep/20 17:42, Robert Raszuk wrote:
It's not about numbers ... it's about ability to uniformly express policy with chain of arguments. See even with large communities you can define a policy with an unstructured parameter and single action then you need to put it on all of your boxes to act upon. Is it possible to perhaps express it there to do what you need today or what you think is possible today. Imagine if you would be sending BGP updates between your internal peers and tell each peer how to read the encoding ... Doable - sure. Good idea - not quite.
I see your logic. I'm not sure I want to put that much faith in vendors, to be honest. Just look at how the RPKI communities were cocked up in not-so-recent releases of Junos. Would vendor code shipping with pre-defined, more well-known communities make life easier? Sure, in theory. Do I want that and still seek a 3AM snooze when the team decide to run a revision update? Based on my experience, probably not. But, if vendors (and enough operators) are horny for this kind of thing, best thing to do would be to build it and see how it actually fares in the field. Mark.
Current thread:
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?', (continued)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mike Hammett via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mark Tinka via NANOG (Sep 09)
- Re: [External] Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Hunter Fuller (Sep 11)
- Re: [External] Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mark Tinka (Sep 30)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mike Hammett via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mark Tinka via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Jeff Tantsura via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Robert Raszuk via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mark Tinka via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Robert Raszuk via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mark Tinka via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Douglas Fischer via NANOG (Sep 08)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mark Tinka via NANOG (Sep 08)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Robert Raszuk via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mark Tinka via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mark Tinka via NANOG (Sep 08)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Mike Hammett via NANOG (Sep 09)
- Re: BGP Community - AS0 is de-facto "no-export-to" marker - Any ASN reserved to "export-only-to"?' Jeff Tantsura via NANOG (Sep 09)