Return-Path: X-Original-To: mmusic@ietfa.amsl.com Delivered-To: mmusic@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7CD9312D871 for ; Mon, 23 Apr 2018 09:45:26 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.108 X-Spam-Level: X-Spam-Status: No, score=-1.108 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RDNS_NONE=0.793, SPF_PASS=-0.001] autolearn=no 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 FMC0wnG0Djtw for ; Mon, 23 Apr 2018 09:45:24 -0700 (PDT) Received: from implementers.org (unknown [IPv6:2001:4b98:dc0:45:216:3eff:fe7f:7abd]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BECBE12D86A for ; Mon, 23 Apr 2018 09:45:24 -0700 (PDT) Received: from [IPv6:2601:648:8301:730f:fdb6:1cc8:478a:5b55] (unknown [IPv6:2601:648:8301:730f:fdb6:1cc8:478a:5b55]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "Marc Petit-Huguenin", Issuer "implementers.org" (verified OK)) by implementers.org (Postfix) with ESMTPS id 4BDA0AE844; Mon, 23 Apr 2018 18:45:21 +0200 (CEST) To: Suhas Nandakumar , Peter Saint-Andre Cc: mmusic WG References: <2a27e3fb-528a-92a9-bdfc-e4f303d34221@mozilla.com> From: Marc Petit-Huguenin Message-ID: <9865a04c-312c-1a81-7f96-5baa237f3d55@petit-huguenin.org> Date: Mon, 23 Apr 2018 09:45:14 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="2SVQOscErh7Wl5UZygxPLGLclFQX83LF3" Archived-At: Subject: Re: [MMUSIC] ice-options attribute: session- and media-level? X-BeenThere: mmusic@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Multiparty Multimedia Session Control Working Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Apr 2018 16:45:26 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --2SVQOscErh7Wl5UZygxPLGLclFQX83LF3 Content-Type: multipart/mixed; boundary="udJyE6vwcjud0RK0JpV3FNK1BhKUKSPqs"; protected-headers="v1" From: Marc Petit-Huguenin To: Suhas Nandakumar , Peter Saint-Andre Cc: mmusic WG Message-ID: <9865a04c-312c-1a81-7f96-5baa237f3d55@petit-huguenin.org> Subject: Re: [MMUSIC] ice-options attribute: session- and media-level? References: <2a27e3fb-528a-92a9-bdfc-e4f303d34221@mozilla.com> In-Reply-To: --udJyE6vwcjud0RK0JpV3FNK1BhKUKSPqs Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable This was done as a consequence of merging this draft in ice-bis: https://www.ietf.org/archive/id/draft-petithuguenin-mmusic-ice-attributes= -level-04.txt There is probably discussions that can be found in the minutes of IETF me= etings around that time when the WG agreed to that modification. On 04/20/2018 11:09 PM, Suhas Nandakumar wrote: > I am fine with considering ice-options has session level too. I wonder = if > Marc can chime in on considering it as media level in the ice-sip-sdp.= >=20 > On Fri, Apr 20, 2018 at 12:07 PM, Peter Saint-Andre > wrote: >=20 >> On 4/20/18 12:37 PM, Roman Shpount wrote: >>> Hi All, >>> >>> I do not think ice-options was ever used as a media level attribute. >>> Only two ice-options defined in IANA registry >>> (https://www.iana.org/assignments/ice/ice.xhtml) are ice2 and rtp+ec= n, >>> which are both session level. >>> >>> Furthermore, RFC 5245 section 15.5 >>> (https://tools.ietf.org/html/rfc5245#section-15.5,) defined that >>> ice-options attribute is session level only. Thus, ice-options should= be >>> kept session level for backwards compatibility. >>> >>> If something more granular then session is needed, I think it should = go >>> into candidate extension attribute, not into media level ice-options.= >>> >>> Bottom line, I think ice-options should be a a session level only >> attribute. >> >> Agreed. >> >> In the Trickle ICE spec, we also limited the `trickle` option to sessi= on >> level only. >> >> Peter >> >> --=20 Marc Petit-Huguenin Email: marc@petit-huguenin.org Blog: https://marc.petit-huguenin.org Profile: https://www.linkedin.com/in/petithug --udJyE6vwcjud0RK0JpV3FNK1BhKUKSPqs-- --2SVQOscErh7Wl5UZygxPLGLclFQX83LF3 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEBSI+IuCHU8MsI1GjKcRFldZqfsQFAlreDZ4ACgkQKcRFldZq fsR3pA/9HvySikGyOOhtiRiRxWEF/SRMcmahtdHVwvHt3rSyvXO0yYW35C5qkw0l mvg4Ihk/C9b5Ufq3e6kzcZ/gY3dJhrSShEz5pdX1Hw6JCs9KNpZivkPsIIOTw1Sh 68fGI2IibPGnn0IiaU9pvoNUWFWsSobxOQssCaCgSc41CY4UIm3mgS6sp/b2gT/V aiO8naRUneKTcjoTtTBaYRZiiULk0J47OVLL7fMH6rJY6LbIEGXqgzgU4ehhQDhI nCfvXtSwtM1ML3/Nc+n2WUBcEtFUBzhS4vTPgeCH0R90DtElJbuHIUTN+ngjpaCs 708ww3F8YX70MgER1/GEZHeSKcfnHRDesTWNxW8Y2vsCt5cyiU/IvB27R4gH5hjG Zn/vHIhrYeyFwxybk2fSC1pp6cXerq05Vm+P27ZvhSghJvq/gxRndzGd+qUppDna 55CHh9bbIVJyPXZ3YD6fXaCvl7XYiXSwCZuoAUXYxCrXeRi+HQDSm9HNevAfU3f5 JTwnuh+tcOFj31tSoqL3P17zqKQy17SEMAXVW4hoVS56eQBwcG04oAK2Ac7cfHBB slRkyT9qt/PY4CaUKj4d+8MuNtIr7AWt+qRn3+ryuxxaTSQVkwZTaV2t5s1wpeiT 0b0mdonrfqXF25RXVFZvSAMo9RuEmGKESASozeQCJ3KblCHJB78= =cb0u -----END PGP SIGNATURE----- --2SVQOscErh7Wl5UZygxPLGLclFQX83LF3--