**************** DISPATCH ——————— 10:00 Agenda bashing; blue sheets; jabber scribe; note taker (5 mins; co-chairs) (no chair slides posted) Chairs show IETF-96 deadlines. Thanks to Barry for being an AD :) 10:05 Updates from Area Directors (15 mins; Area Directors) (https://www.ietf.org/proceedings/95/slides/slides-95-dispatch-2.pdf) Alissa gives an update on the status of all the groups. She encourages those on the “end is in sight” slide that were also on that slide for IETF-90 to finish up. TAPS WG (Gorry Fairhurst) (https://www.ietf.org/proceedings/95/slides/slides-95-dispatch-4.pdf) Volunteers to review this draft: Ted (Hardie?) 10:20 APPSAWG Wrap-up (5 mins; Murray Kucherawy) Two docs finishing up. Still need a shepherd for one doc. Murray asks about whether both DISPATCH and APPS discuss list are needed. Barry suggests that the latter is needed for discussion but would eventually need to go to DISPATCH for approval and actions. Alexei points out that there have been concerns in the past with too much discussion traffic on DISPATCH, so maybe we should leave it. Alissa wants us just to be clear what to do, since this is tough for newbies to figure out. No official conclusions, just opinions. 10:25 BoF Summaries (5 mins; various artists) Joel Halpin, (missed BoF name). Looking to see whether enough interest for standards track. BoF later today will ask for help. (missed most of Ted) Ted Hardie (ACCORD?) - managing traffic in GSMA. Trying to identify how to use minimal bits … Also ARCing - Martin Thomson (missed as well) 10:30 New Working Group Summaries (5 mins; various artists) 10:35 draft-peterson-dispatch-rtpsec (45 mins; Russ Housley) (https://www.ietf.org/proceedings/95/slides/slides-95-dispatch-3.pdf) Jon Peterson is presenting. Brief discussion about how opportunistic STIR might actually work. Jon asks if there is interest in fleshing this out. Only one or two hands up in the room. Regarding connected identity, Cullen raised some concerns regarding early media and when identity arrives. There does seem to be interest in this topic, but it also clearly needs work. Regarding questions/suggestions on media security slide, there are disagreements on how much this doc and OSRTP should be aligned since the latter is more about current practice and about how to move current practice in the direction of better security. Chairs ask for rough straw poll: - how much interest in mandating support for DTLS-SRTP: many - must not use MIKEY: weak - make MIKEY MTI? none - who would not want DTLS-SRTP to be MTI: no hands - who wants MIKEY to remain an option? one hand on jabber - who thinks SDES should not be allowed to be used in this profile: around 10 - who thinks it should be allowed to be used in this profile: none in room, one on jabber There was an important question about what the scope of this proposed BCP would be and that clarifying that would help with understanding how prescriptive it can be. It was pointed out by multilple people that this doc has promised work listed that would be beyond a BCP, so that might need to be separated out. Cullen (as chair): there are individual pieces here such as DTLS-SRTP and STIR that need to be done there, but the core BCP work might need its own group (could be mini-group) or to go into SIPCORE. AdamR: if the scope is small SIPCORE would be okay with hosting it Those in favor of a focused WG on the umbrella effort (the BCP) and coordinating with other groups for the details: good hum Those against? silence. Conclusion: good consensus in room in favor 11:20 draft-holmberg-dispatch-mcptt-rp-namespace (20 mins; Christer Holmberg) (https://www.ietf.org/proceedings/95/slides/slides-95-dispatch-0.pdf) Christer suggests this be AD-sponsored. There was a suggestion that any AD sponsor get review from experienced transport folks. Chair proposal: discuss more on list and look for an AD to sponsor (no objection) 11:40 draft-weinronk-dispatch-last-diverting-line-id (30 mins; Nigel Weinronk) (https://www.ietf.org/proceedings/95/slides/slides-95-dispatch-1.pdf) There are questions about exactly what the proposed architecture is, how it works, whether this is needed, etc. AdamR proposes that Nigel does more work and returns to DISPATCH. Brian Rosen in particular says that History-Info was meant to address this. Mary Barnes volunteers to work with Nigel to see if History-Info is the right way to do this. Shida also volunteers to help. 12:10 Open Microphone/AOB (remaining time; TBD) Other topics: draft-suznjevic-dispatch-delay-limits: needs reviews to make progress. Mary has read it. draft-dawes-sipcore-mediasec-parameter: numerous people have read it. Chairs ask if reviewers think the work should happen. AdamR, BenC both say there are things that must be changed/fixed in this draft. It still needs more work before it can be considered for AD-sponsoring. That is the decision. Sean Leonard, RegEx for Internet Mail (no slides posted) Proposal for a BCP for a regular expression for email addresses since they are used in searches, as ids, etc. Goal is to help the public know what is proper for an email address. There is a question whether RegEx is sufficient or whether ABNF is needed. The short answer is that Regular Expressions are sufficient. It was pointed out that this is irrelevant anyway, since it’s better to have an intelligent and useful RegExp than what developers are using today. Robert Sparks wants to know why this has to be defined here. Why not just define code libraries that do this? One point from the email draft itself is that addresses are defined via a combination of ABNF and prose, so the ABNF alone is not sufficient. Hence the need for something programmatic. One concern was raised about this being a BCP or standards-track draft because it coulde raise confusion with what the normative definiton is. Chair summary: there seems to be consensus around an informational draft. Authors are encouraged to work on the draft but keep it informational so there is no risk that it would be considered to override the existing current drafts. Alexei points out that it could be made BCP later if appropriate. That’s not a decision that needs to be taken today. draft-hildebrand-deth (Joe Hildebrand) Joe submitted just before the draft deadline. Suggests everyone take a look at the draft. **************** Second set of minutes DISPATCH IETF95 2016-04-04 - Alissa presents the status of the ART Area. No comments - Garry Fairhurst describes features of UPD and UPD-lite from Taps Wg. AP: Ted Hardie to review draft. - Discussion on merging dispatch and apps-discuss list. Barry thinks APPS is still good for discussion on general topics. Dispatch should be for new things. RAI area list should be killed. AP: Cullen to send out Berry’s summary to both lists. - Discussion of new BOFs. Joel Halpern talks about Babal routing. Ted Hardie talks about Accord and Arcing. Martin Thomsom talks about ? No Comments - Jon Peterson presents new suggested BCP for SIP negotiated point-to-point RTP. Several comments from Jonathan, Ecker, Cullen, etc… Cullen asks the working group for input: Favour: DTLS-SRTP mandatory to implement in this profile - bunch of people Not Favour: DTLS-SRTP mandatory to implement in this profile - no hands Favour: Not allowed with SDES in this profile - bunch of people Not Favour: Allowed to use SDES in this profile - no hands Favour: Must NOT use MIKEY in this profile - weak support Support for doing a BCP. To complex for AD sponsored. The only possible places are new working group or SIPcore. Need to split up current draft in BCP and other. Most support for starting a new working group. Several documents in other groups needed. Cullen asks the working group for input: Favour of new focused working group for the umbrella pieces and coordination with other groups: Good consensus. How are willing to contribute to this wg: Bunch of people. Conclusion: Good consensus to try to start a new focused working group for the umbrella pieces and coordination with other groups: Good consensus. - Christer Holmberg describes IANA Registration of New Session Initiation Protocol (SIP) Resource-Priority Namespace for Mission Critical Push To Talk service. Suggestion to adopt and AD sponsor for this 3GPP related draft. Suggested that more detailed scope of applicability needed. Conclusion: Continue discussion on DISPATCH list. Beg AD for sponsoring. - Nigel Weinronk describes a new SIP header for Last Diverting Line Identity. Suggested to have this as a parameter of history info instead of new header. Cullen talks about privacy implications. Cullen asks what to do: Not enough information to decide. Should revisit. Not clear if this is a SIP problem or if is just bad implementations. Conclusion: Mary is going to work with the authors and see if they can come up with a better proposal using history-info. Shita? will also help. - Other topics delay-limits: Nobody has read. Will not move forward. Somebody needs to read. mediasec-parameters: This was not in SIPcore charter. Bounced back to DISPATCH. Maybe AD sponsoring. IANA registration issues in current draft. - Regular expressions for Internet Mail Regex will not catch everything. Draft is good but not perfect. Some suggestions for informational. Don’t want clash with earlier specifications. Some suggestions for BCP. Conclusion: Looking forward for next version - Joe Hildebrand suggests people to look at draft-hildebrand-deth.