TCP Candidates with Interactive Connectivity Establishment (ICE)
draft-ietf-mmusic-ice-tcp-16

Section 1

   However, ICE only defines procedures for UDP-based
   transport protocols.

I think "UDP-based transport protocols" is wrong snce UDP *is* a 
transport protocol. 5245 talks about "UDP-based media streams" and 
"UDP".

Thank you fow writing this document. It is a complex topic but the document was quite easy to read.

I support Stephen's discuss.

- on page 3, 2nd last para where it talks about "one of the
agents" it might be clearer to say "one of the agents (the
offerer)"

- lack of ICE-clue means I didn't get the last para of
p5; probably just me but maybe take a look and see if you
can make it easier on the ICE-impaired?

- the last para of section 3 was unexpected - would it be better
elsewhere? Such as after initial offers are explained?

- in 4.1 would s/highly receommended/highly RECOMMENDED/ be better
2119-wise?

- 4.1 last para, be good to reference the section of whatever RFC
defines Ta (5245 section 16 I guess)  - when I searched RFC 5389 I
didn't find the string " Ta " which confused me. 

- end of 4.3 talks about a "passive" attribute value but the 
ABNF in 4.5 uses abbreviations "act", "pass" and "so." Why
the inconsistency? "Pass" might also be confusing (e.g. vs.
"fail"). Maybe saving those few bytes isn't worth it?

- 5.2: "Server reflexive active candidates can be derived from
passive or S-O candidates by using the same IP address as a
passive or S-O server reflexive candidate from the same interface
has." Seems like a broken sentence.

- 7.2 Is "on the base of any TCP candidate" going to be clear
to readers? Its not that clear to me but then I'm not familiar
with ICE really, so it might just be me.

- I guess I wonder how common STUN shared secrets are in the
wild. Is this really a practical mitigation? Would it make
sense to note this and to say that appication layer security
ought be used since its unlikely one can really ensure that
there is no bad actor involved if using ICE? (This isn't a
DISCUSS on the basis, that you're probably hosed or don't
care without that application layer security but I guess a
lot of media applications understand this nowadays.)

- Section 12 typo: s/Same considerations apply/The same
considerations apply/