Minutes IAB Teleconference 2008-07-02 1. Roll-call, agenda-bash, approval of minutes, administrivia 1.1. Agenda 1.2. Attendance PRESENT Loa Andersson Gonzalo Camarillo Aaron Falk (IRTF Chair) Barry Leiba Kurtis Lindqvist Andy Malis Danny McPherson Dave Oran Lynn St. Amour (ISOC Liaison) Dow Street (IAB Executive Director) Dave Thaler Mark Townsley (IESG liaison) Lixia Zhang APOLOGIES Stuart Cheshire Sandy Ginoza (RFC Editor Liaison) Russ Housley (IETF Chair) Olaf Kolkman (IAB Chair) Gregory Lebovitz 1.3 Meeting Minutes No meeting minutes were reviewed during this call. 2. IETF 72 Planning 2.1. Overall IAB Schedule for IETF 72 Olaf walked through the IAB schedule for the Dublin meeting. It was decided to add time on Sunday for a discussion of the IP Model architecture topic. Dave Thaler will lead this session. The group also added a Wednesday morning meeting for testing the Marratech conferencing software. ISOC already uses this software, and the IAB is considering it as an option for reducing conference call expenses. 2.2. IETF 72 Technical Plenary Danny gave an update on preparations for the IETF 72 plenary, which is converging to a focus on IPv6 adoption successes and barriers. The session may also cover elements of carrier grade NATs and IPv4 address depletion (including RIR policies), though these would likely constitute a secondary theme. The group discussed a list of goals for the plenary and then considered potential candidates for the technical panel. It was decided to invite 3-4 panelists with varying perspectives to give a short talk on the topic. These presentations would be followed by an IAB-moderated panel discussion and Q&A session. Board members were asked to comment on the current plan. Danny will collect comments and provide an update next week. 3. IANA Wording Update Danny, Kurtis, and Olaf have been coordinating with Bill Graham and Leslie Daigle on recent correspondence with the U.S. Dept. of Commerce. The subject of the correspondence is language within the DoC contract with ICANN that references the IETF/IAB role in the management of the protocol parameter registry. Danny has been working on revised text ahead of the Dublin meeting, but it was noted that there may not be an immediate need to push through new language. There were no specific inputs from the rest of the IAB. Danny will give another update at the next business meeting. 4. IAB Liaison Shepherds There was a brief discussion of the updated liaison shepherd role description and the current list of IAB shepherd-liaison pairings. The plan requires IAB shepherds to communicate with their liaisons at least once each month, assist in liaison activities (as needed), get periodic reports from the liaison (e.g. prior to an IETF meeting), and provide a short update bi-annually to the entire IAB on the overall status of the liaison relationship. The group also decided that it would be worthwhile to develop an internal list of informal affiliations with outside organizations. The purpose of this list would be to assist board members in locating other members (or external individuals) who have existing relationships and/or participation with other SDOs. 5. IP Host Configuration Document Review / Status Dave Thaler reported that he had gotten some feedback on the draft, and that the main addition to the last version was new text on dual-homed nodes (Danny's comments). In this area, the draft attempts to generalize functionality of dual-stack nodes, and references the DHCP-specific RFC as needed. It was decided to begin an IETF call for comments sometime next week. Dave will send an email to the IAB list with a link to the latest draft, which is currently hosted on Bernard's server. 6. NAT-PT / IESG Update Mark gave an update on NAT-PT and recent discussions within the IESG. It appears that the IESG may be heading down a path that leans on DNS rather than requiring host changes. This direction differs from earlier IAB thinking as was outlined in Elwyn's slides from the Sept IAB meeting. Dave Thaler noted that there does not appear to be community consensus on a preferred approach. Mark had sent out an email with a strawman proposal, to which Dave suggested added some introductory material with additional context. There is something of an analogy to the IESG approach to the routing scalability problem, where the problem was divided into nearer term IETF work and longer term IRTF work, but that this context was missing in Mark's existing email. The group walked through the Elwyn's slides. There are a variety of sub-cases in this problem space, and Mark indicated that the current IESG plan looks to consider out of scope those cases involving IPv4 origination or requiring host changes. Lixia re-phrased the situation as "there may be simple solutions that cover 90% of the problem - is it worth the effort to tackle the remaining open issues?" It was decided to add text to Mark's email that identifies dual- stack as the preferred approach, suggests proceeding with v6-v4 translation for supporting v6 only islands, and defers the case of v4 hosts originating sessions to a v6 server. Mark will write a draft email and send it to the IAB for review prior to mailing it to the larger community. IAB members were requested to provide Mark with timely feedback on the proposed text. 7. Action Item Status 7.1. Unwanted Traffic RG Danny reported that the IAB-specific work on this topic is closed for now, but that steady, ongoing work is likely outside the IAB. There is an IAB draft that has been circulating, but there is no immediate deadline for publication. The IAB will revisit this document after the next IETF meeting. It was noted that the IAB effort in this area had helped to drive a successful investigation of the issues, and that much of the space now lies within the scope of the IRTF Anti-spam Research Group (ASRG) and the OPS Area of the IETF. 7.2. Anycast Oran is working on comments. 7.3. Discussion on Infrastructure ENUM Document No update. 7.4. ICANN NomCom No update. 8. Document Status 8.1. What Makes for a Successful Protocol This document is with the RFC Editor. 8.2. Principles of Internet Host Configuration Dave Thaler noted that there is one more week for IAB review of this document before submission. He will confirm that Lixia's latest comments have been incorporated and will send out email to the group. 8.3. Design Choices When Expanding DNS Dave Thaler reported that there were some recent tests to determine current server behavior for various record types. He just recently sent the test results to Olaf, who will determine if/how they impact the current draft. 8.4. DNS Synthesis Concerns This document is also on Olaf's plate. Danny recently sent Olaf comments, and noted that the area is getting more exposure as of late due to cross-domain scripting. It was agreed that there would be value in the IAB publishing this document. 8.5. A Survey of Authentication Mechanisms Danny reported that he had an updated version of this document, and that the plan was for Gregory to take over as editor when he returns from vacation. Eric Rescorla and Bernard Aboba have also been assisting, and had previously worked on the document while on the IAB. 8.6. Headers and Boilerplates The IAB Stream header needs to be added to this document, and there may be some relation between this draft and the errata draft. Danny will coordinate with Russ and Olaf on the matter. 9. AOB Barry noted the recent comments at the Philadelphia plenary about the increasing number of DISCUSSes being originated by the IESG. These comments prompted a number of side conversations, and Barry asked if the subject was discussed at the IESG plenary. Loa and Mark indicated that the IESG is indeed continuing a discussion on the use of DISCUSSes. Barry asked if it was appropriate for the IAB to approach the IESG on the matter in order to initiate a conversation. It was suggested that the current time might be less than ideal for raising this issue due to the pending appeal. There was also agreement that the IAB does not want to be seen as directing the actions of the IESG. No specific next steps on the matter were identified. 10. Conclude Call