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"rtcweb@ietf.org" , "mmusic@ietf.org" , "ice@ietf.org" , "bfcpbis@ietf.org" Thread-Topic: [art] ICE, ICE-bis, and Cluster 238 Thread-Index: AQHUOkHp2qtJc/guzkqO2Y1jG5WZJaTMHj2A Date: Wed, 22 Aug 2018 20:53:13 +0000 Message-ID: <1362A84F-A635-4E8A-8741-B42336940180@cisco.com> References: <15d3b114-5c04-61c4-8a62-61d8a414143d@nostrum.com> In-Reply-To: <15d3b114-5c04-61c4-8a62-61d8a414143d@nostrum.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/10.e.1.180613 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.20.182.35] Content-Type: multipart/alternative; boundary="_000_1362A84FA6354E8A8741B42336940180ciscocom_" MIME-Version: 1.0 X-Outbound-SMTP-Client: 173.37.102.29, xch-rcd-019.cisco.com X-Outbound-Node: rcdn-core-11.cisco.com Archived-At: Subject: Re: [bfcpbis] [art] ICE, ICE-bis, and Cluster 238 X-BeenThere: bfcpbis@ietf.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: BFCPBIS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Aug 2018 20:53:32 -0000 --_000_1362A84FA6354E8A8741B42336940180ciscocom_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 SWYgSSB1bmRlcnN0YW5kIHRoZSBwcm9wb3NhbCBjb3JyZWN0bHksIGh0dHBzOi8vdG9vbHMuaWV0 Zi5vcmcvaHRtbC9kcmFmdC1pZXRmLWJmY3BiaXMtcmZjNDU4MmJpcy0xNiNyZWYtMTcgc2hvdWxk IGJlIGFkZGVkIHRvIHRoZSBsaXN0IG9mIGRyYWZ0cyB0byBiZSB1cGRhdGVkIGFzIHdlbGwuDQoN CkNoZWVycywNCkNoYXJsZXMNCg0KRnJvbTogYXJ0IDxhcnQtYm91bmNlc0BpZXRmLm9yZz4gb24g YmVoYWxmIG9mIEFkYW0gUm9hY2ggPGFkYW1Abm9zdHJ1bS5jb20+DQpSZXBseS1UbzogQXBwbGlj YXRpb25zIGFuZCBSZWFsLVRpbWUgQXJlYSBEaXNjdXNzaW9uIDxhcnRAaWV0Zi5vcmc+DQpEYXRl OiBXZWRuZXNkYXksIEF1Z3VzdCAyMiwgMjAxOCBhdCAxMDo1OSBBTQ0KVG86IEFwcGxpY2F0aW9u cyBhbmQgUmVhbC1UaW1lIEFyZWEgRGlzY3Vzc2lvbiA8YXJ0QGlldGYub3JnPg0KQ2M6ICJjbHVl 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T_SPF_HELO_PERMERROR=0.01, T_SPF_PERMERROR=0.01] autolearn=unavailable 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 hc0d7WhdMPko; Wed, 22 Aug 2018 14:03:18 -0700 (PDT) Received: from nostrum.com (raven-v6.nostrum.com [IPv6:2001:470:d:1130::1]) (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 71AA9126F72; Wed, 22 Aug 2018 14:03:18 -0700 (PDT) Received: from Svantevit.roach.at (99-152-146-228.lightspeed.dllstx.sbcglobal.net [99.152.146.228]) (authenticated bits=0) by nostrum.com (8.15.2/8.15.2) with ESMTPSA id w7ML35rb009498 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Wed, 22 Aug 2018 16:03:06 -0500 (CDT) (envelope-from adam@nostrum.com) X-Authentication-Warning: raven.nostrum.com: Host 99-152-146-228.lightspeed.dllstx.sbcglobal.net [99.152.146.228] claimed to be Svantevit.roach.at To: "Charles Eckel (eckelcu)" , Applications and Real-Time Area Discussion Cc: "bfcpbis@ietf.org" References: <15d3b114-5c04-61c4-8a62-61d8a414143d@nostrum.com> <1362A84F-A635-4E8A-8741-B42336940180@cisco.com> From: Adam Roach Message-ID: Date: Wed, 22 Aug 2018 16:03:00 -0500 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:60.0) Gecko/20100101 Thunderbird/60.0 MIME-Version: 1.0 In-Reply-To: <1362A84F-A635-4E8A-8741-B42336940180@cisco.com> Content-Type: multipart/alternative; boundary="------------30F832A63F8EDD1E3D6CA365" Content-Language: en-US Archived-At: Subject: Re: [bfcpbis] [art] ICE, ICE-bis, and Cluster 238 X-BeenThere: bfcpbis@ietf.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: BFCPBIS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Aug 2018 21:03:22 -0000 This is a multi-part message in MIME format. --------------30F832A63F8EDD1E3D6CA365 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit [trimming mailing lists] Thanks! That's a good catch. It's not really the same problem (the issue with C238 is inconsistency), but it *is* an issue in that RFC 8445 managed to beat it to publication, and so it should similarly be updated. I will ask the RFC editor to make an appropriate adjustment to rfc4582bis, as I don't think its disposition really depends on the outcome of the Cluster 238 discussion. /a On 8/22/18 3:53 PM, Charles Eckel (eckelcu) wrote: > > If I understand the proposal correctly, > https://tools.ietf.org/html/draft-ietf-bfcpbis-rfc4582bis-16#ref-17 > should be added to the list of drafts to be updated as well. > > Cheers, > > Charles > > *From: *art on behalf of Adam Roach > > *Reply-To: *Applications and Real-Time Area Discussion > *Date: *Wednesday, August 22, 2018 at 10:59 AM > *To: *Applications and Real-Time Area Discussion > *Cc: *"clue@ietf.org" , "rtcweb@ietf.org" > , "mmusic@ietf.org" , "ice@ietf.org" > > *Subject: *[art] ICE, ICE-bis, and Cluster 238 > > Members of the ART community interested in real-time communications: > > Cluster 238 [1] is a set of inter-related documents dealing with > real-time communications. The bulk of these documents relate to > WebRTC, either directly or indirectly. They also form the > underpinnings of CLUE. As of now, there are 34 documents in the > cluster that are not yet published, with 25 of these already in the > RFC Editor's queue. The dependency graph among these documents is such > that the bulk of them can be published as soon as a specific six of > them are handed off to the RFC editor, and we expect this to happen in > the upcoming few months. > > One long-running complication for this cluster of documents is that > each of the documents were developed over the course of seven years, > in concert with implementations, while the ICE protocol itself was > undergoing significant revision. As a consequence, some documents rely > (directly or indirectly) on the older ICE specification (RFC 5245), > while some rely on the newer one (RFC 8445). In some cases, documents > refer directly to the old version and transitively to the new version. > > It is noteworthy that RFC 8445 obsoletes RFC 5245; and that the > mechanism described in RFC 8445 has some  changes that break backwards > compatibility with the mechanism defined in RFC 5245 (with such > behavioral changes controlled by an SDP attribute, allowing clients to > transition from one to the other). > > Most notably, draft-ietf-rtcweb-jsep (which is the core WebRTC > protocol in the IETF) refers to directly to RFC 5245, while relying on > the behavior defined in draft-ietf-ice-trickle; > draft-ietf-ice-trickle, in turn, is based on the newer RFC 8445 > handling. JSEP's reference to RFC 5245 is a practical consideration > that acknowledges that current deployments of WebRTC implement the > older version of ICE. At the same time, these deployed implementations > use a somewhat older version of draft-ietf-ice-trickle in concert with > the older ICE implementation. > > In order to get Cluster 238 published, we need to find some way to > rationalize its references to ICE. At a basic level, the ART Area > Directors do not believe that it makes sense to publish new documents > that refer to an already obsoleted RFC. At the same time, we recognize > that there is value in our specifications being informed by running > code. For WebRTC, the complexity of the system has led us to a point > that we must choose between these principles. Our proposal is to > choose the first, while acknowledging the second. > > This would result in a request to the RFC editor to update all > references to RFC 5245 in the Cluster 238 documents to instead point > to RFC 8445. Documents not yet in the RFC editor queue would be > updated prior to IESG review. We would further request that the RFC > editor add the following text to draft-ietf-rtcweb-overview and > draft-ietf-rtcweb-jsep: > > While this specification formally relies on [RFC8445], at the time > of its publication, the majority of WebRTC implementations support > the version of ICE described in [RFC5245], and use a pre-standard > version of the trickle ice mechanism described in [RFCXXXX]. The > use of the "ice2" attribute defined in [RFC8445] can be used to > detect the version in use by a remote endpoint and to provide a > smooth transition from the older specification to the newer one. > > RFC 8445 would be a normative reference for both documents, while RFC > 5245 would be informative. > > There is one more minor complication, in that > draft-ietf-mmusic-sdp-mux-attributes (which currently points to RFC > 5245) is intended to be an exhaustive list of the SDP attributes > defined in the documents it lists, and RFC 8445 adds a new "ice2" > attribute that was not present in RFC 5245. For this reason, we would > also ask the RFC Editor to add a new row to the table in > draft-ietf-mmusic-sdp-mux-attributes section 5.12, as follows: > >    +-------------------+---------------------------+-------+-----------+ > >    | Name              | Notes                     | Level | Mux       | > >    |                   |                           |       | Category  | > >    +-------------------+---------------------------+-------+-----------+ > >    | ice2              | Not Impacted              | S     | NORMAL    | > >    |                   |                           |       |           | > >    +-------------------+---------------------------+-------+-----------+ > > For clarity, the affected documents are as follows. > > The following documents would be updated to reference RFC 8445 prior > to IESG evaluation: > > ·draft-ietf-clue-datachannel > > ·draft-ietf-clue-signaling > > ·draft-ietf-rtcweb-security > > ·draft-ietf-rtcweb-security-arch > > The following documents would be updated to reference RFC 8445 by the > RFC Editor: > > ·draft-ietf-mmusic-mux-exclusive > > ·draft-ietf-mmusic-sctp-sdp > > ·draft-ietf-rtcweb-alpn > > ·draft-ietf-rtcweb-data-channel > > ·draft-ietf-rtcweb-rtp-usage > > The following documents would be updated to reference RFC 8445 and > have the text proposed above added to them: > > ·draft-ietf-rtcweb-jsep > > ·draft-ietf-rtcweb-overview > > The following document would be updated to reference RFC 8445 by the > RFC Editor, and include a new row for "ice2" in its Section 5.12, as > described above: > > ·draft-ietf-mmusic-sdp-mux-attributes > > This message is cross-posted to the affected working groups. Because > the issue at hand has impact across several different groups, we ask > that all follow-up discussion take place on > . Thank you. > > /Adam on behalf of the ART Area Directors > > ____ > [1] https://www.rfc-editor.org/cluster_info.php?cid=C238 > > > _______________________________________________ > art mailing list > art@ietf.org > https://www.ietf.org/mailman/listinfo/art --------------30F832A63F8EDD1E3D6CA365 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
[trimming mailing lists]

Thanks! That's a good catch. It's not really the same problem (the issue with C238 is inconsistency), but it *is* an issue in that RFC 8445 managed to beat it to publication, and so it should similarly be updated. I will ask the RFC editor to make an appropriate adjustment to rfc4582bis, as I don't think its disposition really depends on the outcome of the Cluster 238 discussion.

/a

On 8/22/18 3:53 PM, Charles Eckel (eckelcu) wrote:

If I understand the proposal correctly, https://tools.ietf.org/html/draft-ietf-bfcpbis-rfc4582bis-16#ref-17 should be added to the list of drafts to be updated as well.

 

Cheers,

Charles

 

From: art <art-bounces@ietf.org> on behalf of Adam Roach <adam@nostrum.com>
Reply-To: Applications and Real-Time Area Discussion <art@ietf.org>
Date: Wednesday, August 22, 2018 at 10:59 AM
To: Applications and Real-Time Area Discussion <art@ietf.org>
Cc: "clue@ietf.org" <clue@ietf.org>, "rtcweb@ietf.org" <rtcweb@ietf.org>, "mmusic@ietf.org" <mmusic@ietf.org>, "ice@ietf.org" <ice@ietf.org>
Subject: [art] ICE, ICE-bis, and Cluster 238

 

Members of the ART community interested in real-time communications:

Cluster 238 [1] is a set of inter-related documents dealing with real-time communications. The bulk of these documents relate to WebRTC, either directly or indirectly. They also form the underpinnings of CLUE. As of now, there are 34 documents in the cluster that are not yet published, with 25 of these already in the RFC Editor's queue. The dependency graph among these documents is such that the bulk of them can be published as soon as a specific six of them are handed off to the RFC editor, and we expect this to happen in the upcoming few months.

One long-running complication for this cluster of documents is that each of the documents were developed over the course of seven years, in concert with implementations, while the ICE protocol itself was undergoing significant revision. As a consequence, some documents rely (directly or indirectly) on the older ICE specification (RFC 5245), while some rely on the newer one (RFC 8445). In some cases, documents refer directly to the old version and transitively to the new version.

It is noteworthy that RFC 8445 obsoletes RFC 5245; and that the mechanism described in RFC 8445 has some  changes that break backwards compatibility with the mechanism defined in RFC 5245 (with such behavioral changes controlled by an SDP attribute, allowing clients to transition from one to the other).

Most notably, draft-ietf-rtcweb-jsep (which is the core WebRTC protocol in the IETF) refers to directly to RFC 5245, while relying on the behavior defined in draft-ietf-ice-trickle; draft-ietf-ice-trickle, in turn, is based on the newer RFC 8445 handling. JSEP's reference to RFC 5245 is a practical consideration that acknowledges that current deployments of WebRTC implement the older version of ICE. At the same time, these deployed implementations use a somewhat older version of draft-ietf-ice-trickle in concert with the older ICE implementation.

In order to get Cluster 238 published, we need to find some way to rationalize its references to ICE. At a basic level, the ART Area Directors do not believe that it makes sense to publish new documents that refer to an already obsoleted RFC. At the same time, we recognize that there is value in our specifications being informed by running code. For WebRTC, the complexity of the system has led us to a point that we must choose between these principles. Our proposal is to choose the first, while acknowledging the second.

This would result in a request to the RFC editor to update all references to RFC 5245 in the Cluster 238 documents to instead point to RFC 8445. Documents not yet in the RFC editor queue would be updated prior to IESG review. We would further request that the RFC editor add the following text to draft-ietf-rtcweb-overview and draft-ietf-rtcweb-jsep:

While this specification formally relies on [RFC8445], at the time of its publication, the majority of WebRTC implementations support the version of ICE described in [RFC5245], and use a pre-standard version of the trickle ice mechanism described in [RFCXXXX]. The use of the "ice2" attribute defined in [RFC8445] can be used to detect the version in use by a remote endpoint and to provide a smooth transition from the older specification to the newer one.

RFC 8445 would be a normative reference for both documents, while RFC 5245 would be informative.

There is one more minor complication, in that draft-ietf-mmusic-sdp-mux-attributes (which currently points to RFC 5245) is intended to be an exhaustive list of the SDP attributes defined in the documents it lists, and RFC 8445 adds a new "ice2" attribute that was not present in RFC 5245. For this reason, we would also ask the RFC Editor to add a new row to the table in draft-ietf-mmusic-sdp-mux-attributes section 5.12, as follows:

   +-------------------+---------------------------+-------+-----------+
   | Name              | Notes                     | Level | Mux       |
   |                   |                           |       | Category  |
   +-------------------+---------------------------+-------+-----------+
   | ice2              | Not Impacted              | S     | NORMAL    |
   |                   |                           |       |           |
   +-------------------+---------------------------+-------+-----------+

 

For clarity, the affected documents are as follows.

The following documents would be updated to reference RFC 8445 prior to IESG evaluation:

·         draft-ietf-clue-datachannel

·         draft-ietf-clue-signaling

·         draft-ietf-rtcweb-security

·         draft-ietf-rtcweb-security-arch

 

The following documents would be updated to reference RFC 8445 by the RFC Editor:

·         draft-ietf-mmusic-mux-exclusive

·         draft-ietf-mmusic-sctp-sdp

·         draft-ietf-rtcweb-alpn

·         draft-ietf-rtcweb-data-channel

·         draft-ietf-rtcweb-rtp-usage

 

The following documents would be updated to reference RFC 8445 and have the text proposed above added to them:

·         draft-ietf-rtcweb-jsep

·         draft-ietf-rtcweb-overview

 

The following document would be updated to reference RFC 8445 by the RFC Editor, and include a new row for "ice2" in its Section 5.12, as described above:

·         draft-ietf-mmusic-sdp-mux-attributes

 

This message is cross-posted to the affected working groups. Because the issue at hand has impact across several different groups, we ask that all follow-up discussion take place on <art@ietf.org>. Thank you.

/Adam on behalf of the ART Area Directors

____
[1] https://www.rfc-editor.org/cluster_info.php?cid=C238


_______________________________________________
art mailing list
art@ietf.org
https://www.ietf.org/mailman/listinfo/art


--------------30F832A63F8EDD1E3D6CA365-- From nobody Wed Aug 29 15:54:17 2018 Return-Path: X-Original-To: bfcpbis@ietf.org Delivered-To: bfcpbis@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 798F4128CB7; Wed, 29 Aug 2018 15:54:14 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Charles Eckel To: X-Test-IDTracker: no X-IETF-IDTracker: 6.83.1 Auto-Submitted: auto-generated Precedence: bulk Cc: mary.ietf.barnes@gmail.com, bfcpbis@ietf.org, iesg-secretary@ietf.org, bfcpbis-chairs@ietf.org Message-ID: <153558325448.14921.15621737234530052887.idtracker@ietfa.amsl.com> Date: Wed, 29 Aug 2018 15:54:14 -0700 Archived-At: Subject: [bfcpbis] Publication has been requested for draft-ietf-bfcpbis-rfc4583bis-24 X-BeenThere: bfcpbis@ietf.org X-Mailman-Version: 2.1.27 List-Id: BFCPBIS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Aug 2018 22:54:15 -0000 Charles Eckel has requested publication of draft-ietf-bfcpbis-rfc4583bis-24 as Proposed Standard on behalf of the BFCPBIS working group. Please verify the document's state at https://datatracker.ietf.org/doc/draft-ietf-bfcpbis-rfc4583bis/