Re: [Sidrops] Minor comments on draft-ietf-sidrops-aspa-profile-00

"Jakob Heitz (jheitz)" <jheitz@cisco.com> Mon, 07 October 2019 22:28 UTC

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From: "Jakob Heitz (jheitz)" <jheitz@cisco.com>
To: Nick Hilliard <nick@foobar.org>, Jay Borkenhagen <jayb@braeburn.org>
CC: SIDR Operations WG <sidrops@ietf.org>
Thread-Topic: [Sidrops] Minor comments on draft-ietf-sidrops-aspa-profile-00
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Date: Mon, 7 Oct 2019 22:27:29 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/sidrops/y0cxY2h3NNaLuRuDrQw8CMTx904>
Subject: Re: [Sidrops] Minor comments on draft-ietf-sidrops-aspa-profile-00
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If the customer-provider objects are individual, then a relying party
may have a partial list of providers for one customer.

If all the providers for one customer are in a single object,
then, upon a change, the RP can have either the old object
or the new object, but never a partial view.

A partial view, IMO is worse that having the old view a little longer
than possible. A partial view can cause some AS-paths to be considered
invalid when they are not.

Regards,
Jakob.

-----Original Message-----
From: Sidrops <sidrops-bounces@ietf.org> On Behalf Of Nick Hilliard
Sent: Monday, October 7, 2019 5:32 AM
To: Jay Borkenhagen <jayb@braeburn.org>
Cc: SIDR Operations WG <sidrops@ietf.org>
Subject: Re: [Sidrops] Minor comments on draft-ietf-sidrops-aspa-profile-00

Jay Borkenhagen wrote on 07/10/2019 12:56:
> It's critical that users of ASPA data operate using a complete set of
> an ASN's authorized upstream ASNs.  The simplest way to communicate
> such a verifiably-complete set is to use a single object.

bits of me agree with this, but other bits not.  It's shifting the 
problem from an RPKI database synchronisation problem to a 
human-oriented data synchronisation problem.  Both are hideously 
difficult problems to solve, but the one which involves human input is 
almost certainly less reliable.

Nick

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