Re: [netconf] WGLC: draft-ietf-netconf-https-notif-06

Andy Bierman <andy@yumaworks.com> Fri, 05 February 2021 20:52 UTC

Return-Path: <andy@yumaworks.com>
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 CC0663A0855 for <netconf@ietfa.amsl.com>; Fri, 5 Feb 2021 12:52:18 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.887
X-Spam-Level:
X-Spam-Status: No, score=-1.887 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, T_SPF_PERMERROR=0.01, URIBL_BLOCKED=0.001] autolearn=unavailable autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=yumaworks-com.20150623.gappssmtp.com
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 ziqhjtOGzGkg for <netconf@ietfa.amsl.com>; Fri, 5 Feb 2021 12:52:16 -0800 (PST)
Received: from mail-lj1-x234.google.com (mail-lj1-x234.google.com [IPv6:2a00:1450:4864:20::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3A6BB3A084D for <netconf@ietf.org>; Fri, 5 Feb 2021 12:52:16 -0800 (PST)
Received: by mail-lj1-x234.google.com with SMTP id m22so9390867ljj.4 for <netconf@ietf.org>; Fri, 05 Feb 2021 12:52:15 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yumaworks-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=cEYhKvPaxEypLRAtkV3h8qrjjeQHHSek6RAntrxxZHQ=; b=vbu5YtopTfQ/w9UEIg9GAg7VTSCT5S6VbaTIROgtQkGCScp5fsHSjopXLypekp27up p4seaKuvAnqD9iU7QXSVLoZotTrd27ATFzsfUqBPB7CKxo90NWfTHWRzfVIO6rMGUxsP g1LpTLtGs9/2EffL/pUKAkqQd7DlL6cvRbQDBqCCn0IKZWcubhv+cVmKAUbrvznW3Krx Z3nNlcHghw9w2Q/xV/xJ7R+RRACWzpSfJu1Vcb93t87KacMnDoudj+D4Ms5MWRFV+Wfv u8rj+STJQw4LNvjJSqjLpYcEu+kx0TidCy68OzxJyk+waCDKUEEI5xp3SPu+P8sPVeBf 1QJQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=cEYhKvPaxEypLRAtkV3h8qrjjeQHHSek6RAntrxxZHQ=; b=C6+aQaHphMOnu21mfG5qRU2yyG6bijAxM/+Cb521CbDBlK/0EMOfWcl+luyIV9MfgR n7+WfjkBBiEjruaN5Op6OShukudNhyzeJ+zfl1NTb1XYKahGWcCaenbdrMgvqEC4JgSp by/09cAGMpFQhtCAoWyVAg1bIrMMC7DIlqfRxZkvcuKx6d6l0/pErs+nQn2tdjb1Pdcg PMCEmFl5FPMK/HLJDs30tfqhWCgd4BxnCXvJTvTVhY4QS91dZyYl74cezzUhm2QUkiAg eHBtFT6/CtqlsV+9L75JkbYYo9eXplzrhnqvb1ro6MTL49lUwVNYFhUigf8uwBUv7/Jo KAVQ==
X-Gm-Message-State: AOAM531Sx0yArQHmO4tEyoocD+GK2cDTn/FoIS8qJP6x99+QSuMFNe1i 8viz5KDOayohHDDUVIIcWtkJnumAuk5i2CqP+nLBLQ==
X-Google-Smtp-Source: ABdhPJyQcipu/X3uQ9Cg6vUSaH8JiPiCONW5n/JZLgMMChp/RvwpuWwYswEMSqqBeeAEjX3DCH3YKY/C/3q68ANhyhg=
X-Received: by 2002:a2e:a590:: with SMTP id m16mr3924291ljp.325.1612558334159; Fri, 05 Feb 2021 12:52:14 -0800 (PST)
MIME-Version: 1.0
References: <MN2PR11MB43669EEF05655F07E39FE4BEB5A80@MN2PR11MB4366.namprd11.prod.outlook.com>
In-Reply-To: <MN2PR11MB43669EEF05655F07E39FE4BEB5A80@MN2PR11MB4366.namprd11.prod.outlook.com>
From: Andy Bierman <andy@yumaworks.com>
Date: Fri, 5 Feb 2021 12:52:03 -0800
Message-ID: <CABCOCHTqgk1D4=LvLJoA4BMpPYBrs5WvqLs60whBXK6EqAB3rA@mail.gmail.com>
To: "Rob Wilton (rwilton)" <rwilton=40cisco.com@dmarc.ietf.org>
Cc: "netconf@ietf.org" <netconf@ietf.org>, "draft-ietf-netconf-https-notif@ietf.org" <draft-ietf-netconf-https-notif@ietf.org>
Content-Type: multipart/alternative; boundary="000000000000b002f705ba9cfe1b"
Archived-At: <https://mailarchive.ietf.org/arch/msg/netconf/rkergTXihGGxRtmEheEElPdJaAA>
Subject: Re: [netconf] WGLC: draft-ietf-netconf-https-notif-06
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, 05 Feb 2021 20:52:19 -0000

Hi,

I reviewed draft-07 that was just published.

It seems too much of the language is limited to XML or JSON encoding.
The media type extensibility should be well-defined so this draft
does not have unintended limitations later on.

There is a significant architectural change made without any real mention
(sec. 4)
In NETCONF and RESTCONF, a notification is a one-way message, meaning there
is no application layer response whatsoever.

That is not the case here. Instead, the publisher sends an HTTPS POST for
every notification
and expects a "204 No Content" response for each one.
The draft should explain the reasons for this change.
HTTP client implementations tend to wait for a response to a POST.
That is probably not what is intended here, but no text explains the
details.

Sec. 4 does not mention what the publisher is supposed to do if the
receiver does not
send a response or sends something other than 204.  It seems like this
redundant ACK
adds complexity and network traffic for no benefit.


Andy


On Thu, Jan 14, 2021 at 5:12 AM Rob Wilton (rwilton) <rwilton=
40cisco.com@dmarc.ietf.org> wrote:

> This message begins a two-week WGLC for draft-ietf-netconf-https-notif-06
> ending on Jan 28.  Here is a direct link to the HTML version of the draft:
>
>         https://tools.ietf.org/html/draft-ietf-netconf-https-notif-06
>
> Positive comments, e.g., "I've reviewed this document and believe it is
> ready for publication", are welcome!  This is useful and important, even
> from authors.  Objections, concerns, and suggestions are also welcomed at
> this time.
>
> Please note, the reason that I am making this request rather than the
> WG chairs is because both chairs are listed as authors on this document.
>
> Thank you,
> Rob Wilton, OPS AD
>
> _______________________________________________
> netconf mailing list
> netconf@ietf.org
> https://www.ietf.org/mailman/listinfo/netconf
>