Re: [Igmp-mld-bis] IGMPv3 / MLDv2 survey

Tim Chown <> Thu, 21 November 2019 15:07 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id 404351200E7 for <>; Thu, 21 Nov 2019 07:07:41 -0800 (PST)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -4.288
X-Spam-Status: No, score=-4.288 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_FILL_THIS_FORM_SHORT=0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: (amavisd-new); dkim=pass (1024-bit key)
Received: from ([]) by localhost ( []) (amavisd-new, port 10024) with ESMTP id pTeZ6iHS32rd for <>; Thu, 21 Nov 2019 07:07:38 -0800 (PST)
Received: from ( []) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by (Postfix) with ESMTPS id 149A412081F for <>; Thu, 21 Nov 2019 07:07:37 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=mimecast20170213; t=1574348856; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=tqatOjqziDh7HKnx+F7UexvixMYCK0SnynA+sxbzIZs=; b=LiQIhjJV2Yojtlh+05LvrRiMeVtGPy85MgCwmh3Um7eU6Ukz9SgNsUI0d35BG1Lw6rpiKS KrYjynWeHQw235CM1oLFuEzjMpcHJ2ARbUdzWtElsahRUnazJ5mdam+7l0+UElCb3a/dob +bA4J/NiGMBbz/urB8y3lZTdFt66Z14=
Received: from ( []) (Using TLS) by with ESMTP id uk-mta-115-8t7A-2HBOGesFc3IzgrSGg-1; Thu, 21 Nov 2019 15:07:32 +0000
Received: from ( by ( with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2495.10; Thu, 21 Nov 2019 15:07:29 +0000
Received: from ([fe80::b4d6:d110:ca1b:bbb0]) by ([fe80::b4d6:d110:ca1b:bbb0%4]) with mapi id 15.20.2474.019; Thu, 21 Nov 2019 15:07:29 +0000
From: Tim Chown <>
To: Mike McBride <>
CC: Olufemi Komolafe <>, Stig Venaas <>, Michael McBride <>, "Mankamana Mishra (mankamis)" <>, "" <>
Thread-Topic: IGMPv3 / MLDv2 survey
Thread-Index: AQHVnUypXKIs3gcFlk+fgyRbujoHraeQdnWAgAA4i4CAAA3NgIAAAloAgAAQdICABPCggA==
Date: Thu, 21 Nov 2019 15:07:29 +0000
Message-ID: <>
References: <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> <>
In-Reply-To: <>
Accept-Language: en-GB, en-US
Content-Language: en-US
x-mailer: Apple Mail (2.3601.0.10)
x-originating-ip: [2001:a88:d510:1101:51df:b8f2:dc45:d230]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 342ef812-96ab-4e54-bf2c-08d76e9486d2
x-ms-traffictypediagnostic: AM0PR07MB5842:
x-microsoft-antispam-prvs: <>
x-ms-oob-tlc-oobclassifiers: OLM:9508;
x-forefront-prvs: 0228DDDDD7
x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(4636009)(366004)(39850400004)(376002)(136003)(346002)(396003)(199004)(189003)(51444003)(53754006)(256004)(6436002)(99286004)(786003)(54906003)(8676002)(316002)(8936002)(6116002)(50226002)(81156014)(81166006)(33656002)(71200400001)(71190400001)(6486002)(2906002)(229853002)(6246003)(4326008)(236005)(6306002)(54896002)(6512007)(46003)(36756003)(2616005)(6916009)(14454004)(5660300002)(53546011)(6506007)(86362001)(606006)(186003)(102836004)(11346002)(1411001)(446003)(76176011)(66556008)(64756008)(66446008)(25786009)(66476007)(91956017)(76116006)(66946007)(478600001)(7736002)(966005)(14444005); DIR:OUT; SFP:1101; SCL:1; SRVR:AM0PR07MB5842;; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1;
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info: 0boeqQagbbCIhMqUICE73/HUQsAo3GwCt2RY34fEgJCApp7ngHvNW6D6X0IGs3XzZXK3XfcazslSVfbNWp9XrIWeFZDtDRPLmLnsbdQ/9I9UETpNbeoWN9OxyAR+ypG0W/vOXLeTJ+ltZBjHmiaCTCdqBqngRodGHc6PliWPtpOstjyjmoeC4/EFKOxC9eXNxny+ld0jS5LjsuAkiP3Cf6z74B/iYMyi2R4oNUtk8zfkOJgHx2Gt5HtqfRLchSb8ZlmxellsGmnunlIcuMN+WUELbwLmFA0OIIDnpMZ/7pTPBUHd9bVOBXj8tH2niH4kcUtiiOEcW/pO3/arBaK34DMdesl/OSWiBLCFrJCaVEryz2dnapOwf18ZRlbkOFBw7WURIR+jdBvYoH7BdsVx9Ph5IrGzo4K/M1qTmuIUnrFq17eYBC8cJV8AOnNnPM3UhYUKVAIx65LMevsE71hiHt9+D6QWtCtontPraFbq1Kc=
x-ms-exchange-transport-forked: True
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: 342ef812-96ab-4e54-bf2c-08d76e9486d2
X-MS-Exchange-CrossTenant-originalarrivaltime: 21 Nov 2019 15:07:29.1248 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 48f9394d-8a14-4d27-82a6-f35f12361205
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: rzed3hmcl8hE3hpwHO8PlTRorpfaUAR45gKfNI60HHxUH02luViGLv3uRBSjLVHgkAqLYj/8x/n9bNkvHkaTvA==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR07MB5842
X-MC-Unique: 8t7A-2HBOGesFc3IzgrSGg-1
X-Mimecast-Spam-Score: 0
Content-Type: multipart/alternative; boundary="_000_71DCE2502C3145A59FB3A28B0D1305CAjiscacuk_"
Archived-At: <>
Subject: Re: [Igmp-mld-bis] IGMPv3 / MLDv2 survey
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Thu, 21 Nov 2019 15:07:41 -0000


Can I get a final list of changes required?

It’s now at this URL, same pw of ietfpim.


On 18 Nov 2019, at 11:41, Mike McBride <<>> wrote:

Feel free to use<> for questions unless you want to
use one of your own emails.

thanks, its looking good.


On Mon, Nov 18, 2019 at 2:42 AM Tim Chown <<>> wrote:


Some points picked up on below, the rest I’ll wait for consensus...

On 18 Nov 2019, at 10:34, Olufemi Komolafe <<>> wrote:


The survey looks really good!  Thanks for helping with this; much appreciated :-)

Please see inline for some responses….

On 18 Nov 2019, at 09:44, Tim Chown <<>> wrote:

On Sun, Nov 17, 2019 at 5:41 AM Tim Chown <<>> wrote:

Hi all,

Apologies for the delay in setting this up.  I have launched a (draft) survey at:

I have set a password of ietfpim for now.  I used an IETF logo rather than the Jisc one.

I have tried to add some logic to allow vendors and/or operators to use the same questionnaire.

Please test vigorously and check it captures the spirit of the draft correctly.

Some questions for you -

- which questions should be compulsory?

I’m not sure we need to make any questions compulsory.  Hopefully folks will answer most/all the questions.

- should the anonymous question come before we ask names etc?

Yes, I think that the question about anonymity should come before asking for the name/contact info.  I do think we should still ask for the name/contact info, even if they indicate they want to complete it anonymously, as supplying this personal info will probably make people feel a bit more accountable and so will likely give their replies a bit more consideration.  I think we should clarify what we mean by “anonymously” by changing the question to:
“Do you wish to complete the survey anonymously (in which case you will not be identified in the report)?"

- should the issues with fallback be a y/n answer (as is) or a “What issues have you had with…” free text?

I think the free text idea is better.

- I added a final “any other comments” type question.  Is that ok?

Yep, good idea.

Also, some other thoughts…...

I think we should change:
Would you like to complete the part of the survey targeted at vendors and host implementors?
+ Yes
+ No
Which part of the survey would you like to complete?  The part targeted at
+ Vendor and host implementors?
+ Network operators?

The problem with that is the some people might want to do both, but also that the survey tool doesn’t support such a flow; if you choose the implementor one when you get to the end of that you hit the operator section, so I need to ask twice, whichever way it’s done anyway.

In case they find our list insufficient, should we add a box in which they can write in “Any other feature” after the list we provide for the “Which IGMPv3 and MLDv2 features do you use?” question?

Will numbering the questions help processing the results etc?

They are numbered, I just don’t have that turned on.  I could do so.

Also, should we put a contact email address at the start in case people have questions?  Perhaps the WG chairs?  Or your own?

We can do that - if so let me know whose details to add.



While you consider those, I’ll find out why each question has a pointless “More info” box next to it.

Bes6t wishes,