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Re: [lisp] AD Review of draft-ietf-lisp-pubsub-09

Dino Farinacci <farinacci@gmail.com> Sun, 06 November 2022 14:39 UTC

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From: Dino Farinacci <farinacci@gmail.com>
In-Reply-To: <BN8PR11MB3588A92BEE89699E39F6503DB63D9@BN8PR11MB3588.namprd11.prod.outlook.com>
Date: Sun, 06 Nov 2022 14:39:11 +0000
Cc: Alvaro Retana <aretana.ietf@gmail.com>, "lisp@ietf.org" <lisp@ietf.org>, Luigi Iannone <ggx@gigix.net>, "lisp-chairs@ietf.org" <lisp-chairs@ietf.org>, Vina Ermagan <ermagan@gmail.com>, Stefano Secci <stefano.secci@cnam.fr>, Fabio Maino <fmaino@cisco.com>, Sharon Barkai <sharon.barkai@getnexar.com>, Albert Cabellos <acabello@ac.upc.edu>, Johnson Leong <johnsonleong@gmail.com>, JACQUENET Christian INNOV/NET <christian.jacquenet@orange.com>, "mohamed.boucadair@orange.com" <mohamed.boucadair@orange.com>
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To: "Alberto Rodriguez-Natal (natal)" <natal@cisco.com>
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Subject: Re: [lisp] AD Review of draft-ietf-lisp-pubsub-09
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> [AR] As mentioned in the Alvaro/Dino discussion, regular Map-Notifies as per 9301 are sent to the source IP address of the Map-Register that triggered them. Since PubSub extends LISP to specify that Map-Notifies can also be triggered by Map-Requests, we need to specify where these Map-Request-triggered Map-Notifies are sent to.

This isn't making sense to me. Are you talking about a Map-Notify as an ack to the Map-Register or an unsolicited Map-Notify and if the latter, the notification is going to the source address of the LAST subscription request. And if another Map-Request came later with the N-bit set again, with a new/different source IP address, the map-server must cache the last address (and later send Map-Notify to this new address).

Agree?

Dino

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