I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please wait for direction from your document shepherd or AD before posting a new version of the draft. For more information, please see the FAQ at <http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>. Each review must include a summary statement chosen from or adapted from the following list: This draft is ready for publication as a Standards Track RFC. I have only two small editorial comments: Figure 2 appears to be missing a couple of backslashes in the ASCII art drawing. The sentence "This document has been written to address errata in a previous version of this standard.” probably ought to be moved to section 2. A broader statement in the Abstract to the effect that this document is a rewrite of RFC 4447 for publication as an Internet Standard might be more helpful. - Ralph