Re: [netconf] some comments on netconf-adaptive-subscription

Michael Richardson <mcr+ietf@sandelman.ca> Fri, 25 June 2021 16:51 UTC

Return-Path: <mcr+ietf@sandelman.ca>
X-Original-To: netconf@ietfa.amsl.com
Delivered-To: netconf@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A1EBA3A0AA6; Fri, 25 Jun 2021 09:51:09 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.899
X-Spam-Level:
X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wUWYauFZIl3i; Fri, 25 Jun 2021 09:51:05 -0700 (PDT)
Received: from tuna.sandelman.ca (tuna.sandelman.ca [209.87.249.19]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E76F83A0AA0; Fri, 25 Jun 2021 09:51:04 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1]) by tuna.sandelman.ca (Postfix) with ESMTP id 9C46138B87; Fri, 25 Jun 2021 12:52:50 -0400 (EDT)
Received: from tuna.sandelman.ca ([127.0.0.1]) by localhost (localhost [127.0.0.1]) (amavisd-new, port 10024) with LMTP id FwlVbgA9eITn; Fri, 25 Jun 2021 12:52:48 -0400 (EDT)
Received: from sandelman.ca (obiwan.sandelman.ca [IPv6:2607:f0b0:f:2::247]) by tuna.sandelman.ca (Postfix) with ESMTP id 2AA4338A36; Fri, 25 Jun 2021 12:52:48 -0400 (EDT)
Received: from localhost (localhost [IPv6:::1]) by sandelman.ca (Postfix) with ESMTP id 49151553; Fri, 25 Jun 2021 12:51:00 -0400 (EDT)
From: Michael Richardson <mcr+ietf@sandelman.ca>
to: Qin Wu <bill.wu@huawei.com>, netconf@ietf.org, "core\@ietf.org" <core@ietf.org>
In-Reply-To: <30012.1624637371@localhost>
References: <0ded93e29090419dabc5551e49dac97d@huawei.com> <30012.1624637371@localhost>
X-Mailer: MH-E 8.6+git; nmh 1.7+dev; GNU Emacs 26.1
X-Face: $\n1pF)h^`}$H>Hk{L"x@)JS7<%Az}5RyS@k9X%29-lHB$Ti.V>2bi.~ehC0; <'$9xN5Ub# z!G,p`nR&p7Fz@^UXIn156S8.~^@MJ*mMsD7=QFeq%AL4m<nPbLgmtKK-5dC@#:k
MIME-Version: 1.0
Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature"
Date: Fri, 25 Jun 2021 12:51:00 -0400
Message-ID: <9644.1624639860@localhost>
Archived-At: <https://mailarchive.ietf.org/arch/msg/netconf/31QkQLlD4akIExjil-15p6nVejs>
Subject: Re: [netconf] some comments on netconf-adaptive-subscription
X-BeenThere: netconf@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: NETCONF WG list <netconf.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/netconf>, <mailto:netconf-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/netconf/>
List-Post: <mailto:netconf@ietf.org>
List-Help: <mailto:netconf-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/netconf>, <mailto:netconf-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 25 Jun 2021 16:51:10 -0000

Michael Richardson <mcr+ietf@sandelman.ca> wrote:
    >> [Qin]: I am also hoping RESTCONF and CORECONF can work together, but
    >> they seems to look into different use cases (constrained device
    >> management vs unconstrained device management) .  I am not sure we
    >> should generalized RESTCONF and CORECONF into a single protocol.

    > That's not what I'm suggesting.  I'm asking, if bandwidth is an issue,
    > why not use a smaller encoding.  And, why not integrate with CoAP
    > Observe?

draft-birkholz-yang-core-telemetry-01 [now expired] for instance tries to do
a lot of the matching.  I think that the adaptive rate subscription that
you've created would work very well within that model.

I guess yang-core-telemetry-01 needs to update itself as
ietf-netconf-subscribed-notifications is published as RFC 8639 right.

I still don't know how XPath would work with COMI, but really I'm just
sitting around the edges of the YANG over the wire space.

--
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 IøT consulting )
           Sandelman Software Works Inc, Ottawa and Worldwide