[Sidrops] question on draft-ietf-sidrops-aspa-verification-04

"Guyunan (Yunan Gu, IP Technology Research Dept. NW)" <guyunan@huawei.com> Wed, 29 April 2020 02:21 UTC

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From: "Guyunan (Yunan Gu, IP Technology Research Dept. NW)" <guyunan@huawei.com>
To: Alexander Azimov <a.e.azimov@gmail.com>, "rv@nic.dtag.de" <rv@nic.dtag.de>
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Thread-Topic: question on draft-ietf-sidrops-aspa-verification-04
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Date: Wed, 29 Apr 2020 02:21:29 +0000
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Subject: [Sidrops] question on draft-ietf-sidrops-aspa-verification-04
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Hi Alex and Ruediger,

To continue our discussion at the meeting, let's use the example you provided yesterday. Both lateral peering between AS1-AS2, and AS2-AS3.

First question, does AS1 or AS2 sign any ASPA object for this pair and how?  I see description for Sibling relation representation in Section 7, but haven't been able to find any for P2P.

Second question, if yes to the above question, how does AS 3 use any of the ASPA object(s) to detect the leak? And if no, how to detect the leak anyway?




                [AS 1]          [AS 2,AS 3]