This is the re-review of the document. There are still several places where the 
draft uses [RFC1234] without giving any indication what document that is, 
requiring readers to have the mapping from RFC numbers to names. This will
cause extra effort for new people who try to understand the this protocol.
I know it is annoying for the author to have to add those things, but 
hopefully this document will have more readers than authors, so the one
time cost of adding them will help multiple readers while reading the 
document. I know that there are RFCs where the number of authors 
is about the same than number of readers, but I hope this is not one 
of them...

There is still no example in section 6.1 with multi-octet options, having
such example would make it easier for readers to know which byte is sent
first and so on.