Re: [Ice] Tsvart last call review of draft-ietf-ice-pac-03
Justin Uberti <justin@uberti.name> Mon, 20 January 2020 03:06 UTC
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From: Justin Uberti <justin@uberti.name>
Date: Sun, 19 Jan 2020 19:05:51 -0800
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To: Yoshifumi Nishida <nsd.ietf@gmail.com>
Cc: tsv-art@ietf.org, last-call@ietf.org, draft-ietf-ice-pac.all@ietf.org, ice@ietf.org
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Subject: Re: [Ice] Tsvart last call review of draft-ietf-ice-pac-03
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On Sun, Jan 19, 2020 at 12:56 AM Yoshifumi Nishida via Datatracker < noreply@ietf.org> wrote: > Reviewer: Yoshifumi Nishida > Review result: Almost Ready > > This document has been reviewed as part of the transport area review team's > ongoing effort to review key IETF documents. These comments were written > primarily for the transport area directors, but are copied to the > document's > authors and WG to allow them to address any issues raised and also to the > IETF > discussion list for information. > > When done at the time of IETF Last Call, the authors should consider this > review as part of the last-call comments they receive. Please always CC > tsv-art@ietf.org if you reply to or forward this review. > > Summary: > This document is straightforward and almost ready for publication, > but it will be better to clarify the following points. > > 1: How to calculate the PAC timer is not very clear to me. > Does this draft recommend to use the equation described in Section 14.3 > of > RFC8445 or are there other ways? I think this would be better to be > clarified. > Yes, the equation in 14.3 coupled with the STUN backoff guidance in https://tools.ietf.org/html/rfc5389#section-7.2, although these values are just recommendations. The point here is to say that whatever is used for the check timeouts should also be used for the PAC timer. > > 2: I presume this draft only focuses on UDP candidates, but I think > clarifying > it would be useful. > I am also wondering how to treat PAC timer if agents have a mix of TCP > and > UDP candidates. > The guidance here applies to both UDP and TCP candidates. It would not be unheard of for a server to only offer TCP candidates, and the client to offer zero candidates, as in S 3.1.
- [Ice] Tsvart last call review of draft-ietf-ice-p… Yoshifumi Nishida via Datatracker
- Re: [Ice] Tsvart last call review of draft-ietf-i… Justin Uberti
- Re: [Ice] Tsvart last call review of draft-ietf-i… Yoshifumi Nishida
- Re: [Ice] Tsvart last call review of draft-ietf-i… Justin Uberti
- Re: [Ice] Tsvart last call review of draft-ietf-i… Yoshifumi Nishida
- Re: [Ice] Tsvart last call review of draft-ietf-i… Justin Uberti
- Re: [Ice] Tsvart last call review of draft-ietf-i… Yoshifumi Nishida