Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opportunistic-negotiation-01.txt
Christer Holmberg <christer.holmberg@ericsson.com> Wed, 27 September 2017 20:35 UTC
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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: "Gonzalo Salgueiro (gsalguei)" <gsalguei@cisco.com>
CC: "mmusic@ietf.org" <mmusic@ietf.org>
Thread-Topic: [MMUSIC] I-D Action: draft-ietf-mmusic-opportunistic-negotiation-01.txt
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Date: Wed, 27 Sep 2017 20:35:07 +0000
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Subject: Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opportunistic-negotiation-01.txt
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Hi, In the mail you referenced the following is said: “I see your point but Currently SIPBRANDY is chartered to produce Opportunistic SRTP as a BCP. There is also a milestone to inform MMUSIC or other appropriate WGs of any changes needed to support Opportunistic SRTP (Not expected to be published as an RFC). I think SIPBRANDY is just carrying out what they are chartered to do.” But, draft-ietf-mmusic-opportunistic-negotiation doesn’t really define any procedures – it references the SIPBRANDY draft for everything. “[I-D.ietf-sipbrandy-osrtp] describes how Secure Real-time transport protocol (SRTP) can be negotiated opportunistically.” But, as the SIPBRANDY is only Informational, where are the normative procedures? “The exact negotiation mechanism is however outside the scope of this document, an example mechanism can be found in [I-D.ietf-sipbrandy-osrtp].” How can negotiation be outside the scope of the document, when the title of the document contains “negotiating”? In addition, the text says that the sipbrandy only contains “an example mechanism”. If we are going to have this document, I think we shall include normative offer/answer procedures. The draft DOES contain some normative procedures, but I think we shall have it all in one place. One shall not have to read both documents just to figure out the offer/answer procedures. Regards, Christer From: Gonzalo Salgueiro (gsalguei) [mailto:gsalguei@cisco.com] Sent: 27 September 2017 21:58 To: Christer Holmberg <christer.holmberg@ericsson.com> Cc: mmusic@ietf.org Subject: Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opportunistic-negotiation-01.txt Hi Christer - See this: https://mailarchive.ietf.org/arch/msg/mmusic/wov2yErrgtUZURyRyVuVZ6K-nLI Cheers, -G On Sep 27, 2017, at 9:19 AM, Christer Holmberg <christer.holmberg@ericsson.com<mailto:christer.holmberg@ericsson.com>> wrote: Hi, I am currently reviewing draft-ietf-sipbrandy-osrtp-03, and the following question comes to my mind: do we really need draft-ietf-mmusic-opportunistic-negotiation? :) Section 3 of draft-ietf-sipbrandy-osrtp-03 already more or less contains SDP Offer/Answer procedures for OSRTP. We can change the name of section 3 in that draft to ³SDP Offer/Answer Procedures², modify the structure a little, and add whatever might be missing. Or, am I missing something? Regards, Christer On 14/09/17 19:03, "mmusic on behalf of internet-drafts@ietf.org<mailto:internet-drafts@ietf.org>" <mmusic-bounces@ietf.org<mailto:mmusic-bounces@ietf.org> on behalf of internet-drafts@ietf.org<mailto:internet-drafts@ietf.org>> wrote: A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Multiparty Multimedia Session Control WG of the IETF. Title : Negotiating SRTP and RTCP Feedback using the RTP/AVP Profile Authors : Andrew Hutton Roland Jesske Alan Johnston Gonzalo Salgueiro Bernard Aboba Filename : draft-ietf-mmusic-opportunistic-negotiation-01.txt Pages : 7 Date : 2017-09-14 Abstract: This document describes how the use of the Secure Real-time transport protocol (SRTP) [RFC3711]. can be negotiated using the RTP/AVP (Audio Video Profile) defined in [RFC3551]. Such a mechanism is used to provide a means for encrypted media to be used in environments where support for encryption is not known in advance, and not required. The same mechanism is also applied to negotiation of the Extended RTP Profile for Real-time Transport Control Protocol Based Feedback (RTP/ AVPF) [RFC4585]. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-mmusic-opportunistic-negotiati on/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-mmusic-opportunistic-negotiation-01 https://datatracker.ietf.org/doc/html/draft-ietf-mmusic-opportunistic-nego tiation-01 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-mmusic-opportunistic-negotiat ion-01 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ _______________________________________________ mmusic mailing list mmusic@ietf.org<mailto:mmusic@ietf.org> https://www.ietf.org/mailman/listinfo/mmusic _______________________________________________ mmusic mailing list mmusic@ietf.org<mailto:mmusic@ietf.org> https://www.ietf.org/mailman/listinfo/mmusic
- [MMUSIC] I-D Action: draft-ietf-mmusic-opportunis… internet-drafts
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Andy Hutton
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Hutton, Andrew
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Alan Johnston
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Gonzalo Salgueiro (gsalguei)
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Andy Hutton
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Andy Hutton
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Andy Hutton
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Andy Hutton
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Paul Kyzivat
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Christer Holmberg
- Re: [MMUSIC] I-D Action: draft-ietf-mmusic-opport… Flemming Andreasen