RE: Updated Binary Optimized Header Encoding Draft

This is very similar to what was done in WAP (WSP 1.x specifically).

See section 8.4 in http://www.wapforum.org/tech/documents/WAP-203-WSP-20000504-a.pdf


Does this have to be re-invented? Are there significant benefits?

Thanks,
Jeroen


From: James M Snell [mailto:jasnell@gmail.com]
Sent: Wednesday, October 03, 2012 10:08 AM
To: ietf-http-wg@w3.org
Subject: Updated Binary Optimized Header Encoding Draft

FYI.. I have submitted an updated draft for the proposed Binary Optimized Header Encoding mechanism for the http2 effort.

  http://www.ietf.org/id/draft-snell-httpbis-bohe-01.txt


A number of fairly significant changes have been made:

  1. The codepage identifier for registered header tokens has been removed.
  2. The Per-header flags field has been removed and replaced with specific individual bits to indicate character-based values and multiple values
  3. Value lengths have been increased from max 16-bit length to a max 22-bit length.

The encoding itself remains just as compact with these changes. With the http version header field, for example, requiring no more than 6 uncompressed bytes to represent.

As always, feedback is more than welcome.

- James