source: wg_materials/interim0113/agenda.txt @ 2330

Agenda - HTTPbis Interim Meeting
================================

Tokyo, Japan  January 30-February 1, 2013

[Arrangements](http://trac.tools.ietf.org/wg/httpbis/trac/wiki/F2F/Jan13)
[Issues List](http://trac.tools.ietf.org/wg/httpbis/trac/report/21)
[Current Draft](http://tools.ietf.org/html/draft-ietf-httpbis-http2)

### WEDNESDAY, January 30, 2013

    0830-0900 Reception
    0900-1200 Morning Session
    1200-1300 Lunch - En Cafe
    1300-1500 Afternoon Session I
    1500-1530 Break
    1530-1700 Afternoon Session II
    1700 Announcement (e.g. How to get out of building)

### THURSDAY, January 31, 2013

    0830-0900 Reception
    0900-1200 Morning Session
    1200-1300 Lunch - En Cafe
    1300-1500 Afternoon Session I
    1500-1530 Break
    1530-1700 Afternoon Session II

### FRIDAY, February 1, 2013

    0830-0900 Reception
    0900-1300 Session
    1300-1400 Lunch - En Cafe



Introduction
------------

- Blue sheets
- Scribe selection
- NOTE WELL
- Meeting format, goals
- Agenda bashing


HTTP/2 Draft Status
-------------------

The editors (Alexey and Martin) will summarise their current status and
plans for editorial work. 


HTTP/2 Issues
-------------

### Upgrade

We've delegated TLS upgrade to the TLSWG, and have a plan of action for 
HTTP to use the Upgrade mechanism defined by HTTP/1.1, possibly augmented
by hints in DNS and response headers. 

We currently have a proposal for the details of the upgrade, as well as a
DNS hint proposal. Discussion will focus around these.

- http://tools.ietf.org/html/draft-montenegro-httpbis-http2-negotiation
- http://tools.ietf.org/html/draft-lear-httpbis-svcinfo-rr


### Header Compression

SPDY3's header compression has an identified security issue, so we've 
been evaluating potential alternatives. Discussion will centre around the
specifics of these proposals, the criteria we'll use for selecting one, and
the general approach that HTTP/2 takes to header compression.

- http://tools.ietf.org/html/draft-rpeon-httpbis-header-compression
- http://tools.ietf.org/html/draft-snell-httpbis-bohe
- http://http2.github.com/http_samples/mnot/
- [Presentation from James Snell](https://docs.google.com/presentation/d/1x8GvY-7FJi57DW9vSvjTF1QnTkzM18mXi_LQUUprZeo/view)

### Flow Control

We'll discuss Gabriel's draft of general principles for flow control, and
how best to reflect it in the draft.

- http://tools.ietf.org/html/draft-montenegro-httpbis-http2-fc-principles
- https://docs.google.com/document/d/15LMnvVWSY-kF-ME4RZIFHN0FukViapjiefQMmQCnr14/pub

### Frame Sizes

SDPY3 has a data frame with a maximum size of 16MB. Some implementers have 
mentioned that this limits the use of sendfile() with large files; we'll
discuss whether to include a "jumbo" frame size (as well as other sizes, 
depending on their use cases).


### Prioritisation

We'll start discussion of the prioritisation mechanism, with the aim of 
identifying specific issues and/or changes to make.

[Presentation by Will Chan](https://docs.google.com/presentation/d/1OfgPJsW6P7pky5PiyEzBNZnf5dWXq-y19ReSSg6BIeM/edit#slide=id.p)

### Other Issues and Deliverables

Discussion of other potential issues (editorial or design), additional
deliverables, etc.


Implementation and Testing
--------------------------

Based upon the progress we make (or fail to), we'll attempt to sketch out
a plan for proofs-of-concept, implementation and interoperability testing.


Wrap-up
-------

- Review of Action Items
- Next Steps