A bit offtopic, but does anybody know what typesetting system was used to produce this document? It looks like troff manpages. Is that what is used for RFC documents as well? I love the oldschool look of it.
It was created using rfcmarkup[1], a tool made by the ietf. A quick look at the source of the page in the "generator" meta tag would have told you that (that's how I just found out) :-).
