Re: [bfcpbis] AUTH48 [JM]: RFC 8855 <draft-ietf-bfcpbis-rfc4582bis-16.txt> NOW AVAILABLE

"Charles Eckel (eckelcu)" <eckelcu@cisco.com> Tue, 22 September 2020 20:27 UTC

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From: "Charles Eckel (eckelcu)" <eckelcu@cisco.com>
To: Roman Shpount <roman@telurix.com>, "Charles Eckel (eckelcu)" <eckelcu=40cisco.com@dmarc.ietf.org>
CC: Alan Ford <alan.ford@gmail.com>, "jo@comnet.tkk.fi" <jo@comnet.tkk.fi>, "bfcpbis-chairs@ietf.org" <bfcpbis-chairs@ietf.org>, "bfcpbis@ietf.org" <bfcpbis@ietf.org>, Gonzalo Camarillo <gonzalo.camarillo@ericsson.com>, Keith Drage <drageke@ntlworld.com>, "bfcpbis-ads@ietf.org" <bfcpbis-ads@ietf.org>, Christer Holmberg <christer.holmberg@ericsson.com>, Jean Mahoney <jmahoney@amsl.com>, "mary.ietf.barnes@gmail.com" <mary.ietf.barnes@gmail.com>, "tom@kristensen.larvik.no" <tom@kristensen.larvik.no>, RFC Editor <rfc-editor@rfc-editor.org>
Thread-Topic: [bfcpbis] AUTH48 [JM]: RFC 8855 <draft-ietf-bfcpbis-rfc4582bis-16.txt> NOW AVAILABLE
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Subject: Re: [bfcpbis] AUTH48 [JM]: RFC 8855 <draft-ietf-bfcpbis-rfc4582bis-16.txt> NOW AVAILABLE
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Thanks Roman.
Your review and confirmation of this approach is very helpful and is much appreciated.

Cheers,
Charles

From: Roman Shpount <roman@telurix.com>
Date: Tuesday, September 22, 2020 at 1:20 PM
To: "Charles Eckel (eckelcu)" <eckelcu=40cisco.com@dmarc.ietf.org>
Cc: Alan Ford <alan.ford@gmail.com>om>, Joerg Ott <jo@comnet.tkk.fi>fi>, "bfcpbis-chairs@ietf.org" <bfcpbis-chairs@ietf.org>rg>, "bfcpbis@ietf.org" <bfcpbis@ietf.org>rg>, Gonzalo Camarillo <gonzalo.camarillo@ericsson.com>om>, Keith Drage <drageke@ntlworld.com>om>, "bfcpbis-ads@ietf.org" <bfcpbis-ads@ietf.org>rg>, Christer Holmberg <christer.holmberg@ericsson.com>om>, Jean Mahoney <jmahoney@amsl.com>om>, Mary Barnes <mary.ietf.barnes@gmail.com>om>, "tom@kristensen.larvik.no" <tom@kristensen.larvik.no>no>, RFC Editor <rfc-editor@rfc-editor.org>
Subject: Re: [bfcpbis] AUTH48 [JM]: RFC 8855 <draft-ietf-bfcpbis-rfc4582bis-16.txt> NOW AVAILABLE
Resent-From: <alias-bounces@ietf.org>
Resent-To: Keith Drage <drageke@ntlworld.com>om>, Charles Eckel <eckelcu@cisco.com>
Resent-Date: Tuesday, September 22, 2020 at 1:20 PM

Hi Charles,

Per your request, I have reviewed this as and this looks like a correct way to proceed.

Best Regards,
_____________
Roman Shpount


On Thu, Sep 17, 2020 at 4:09 PM Charles Eckel (eckelcu) <eckelcu=40cisco.com@dmarc.ietf.org<mailto:40cisco.com@dmarc.ietf.org>> wrote:
Great, thanks Alan.

Cheers,
Charles

On 9/17/20, 11:27 AM, "Alan Ford" <alan.ford@gmail.com<mailto:alan.ford@gmail.com>> wrote:

    Charles, all,

    This seems the correct way to proceed. These are clearly normative references, and as regards 5389 vs 8489, 8445 references 5389 normatively anyway so if we changed that we would diverge from 8445.

    Best regards,
    Alan

    > On 15 Sep 2020, at 16:53, Charles Eckel (eckelcu) <eckelcu=40cisco.com@dmarc.ietf.org<mailto:40cisco.com@dmarc.ietf.org>> wrote:
    >
    > Thanks Christer.
    >
    > To recap, the updated proposal is to:
    >
    > 1) maintain the normative reference to RFC 5389 STUN rather than replace it with a reference to RFC 8489
    > 2) update the reference to RFC 5245 ICE to RFC 8445 ICE (this change has already been made a result of AUTH 48)
    > 3) make the informative reference to RFC 8445 ICE a normative reference to be consistent with the normative reference to RFC 5389 STUN and with the normative reference to RFC 8845 ICE in rfc4583bis.
    >
    > Christer, please confirm if I have capture this correctly.
    > Everyone else, your feedback here is greatly appreciated as well.
    >
    > Cheers,
    > Charles
    >
    > On 9/15/20, 8:13 AM, "Christer Holmberg" <christer.holmberg=40ericsson.com@dmarc.ietf.org<mailto:40ericsson.com@dmarc.ietf.org>> wrote:
    >
    >    Hi,
    >
    >    ...
    >
    >>>> 2) make the reference to RFC 5389/STUN an informative reference as is already done for RFC 5245/ICE
    >>>
    >>> My suggestion would actually be to update the ICE reference to RFC 8445. Again, that would align with other C238 cluster documents that reference ICE.
    >>
    >> [cue] Good point. This reference has already been updated to RFC 8445 as part of AUTH-48.
    >
    >    Good.
    >
    >>> And, in RFC 8445 STUN is a *normative* reference.
    >>
    >> [cue] In rfc4582bis, the reference to ICE is currently Informative, whereas the reference to STUN is Normative. I believe they should either both be Normative or both be Informative.
    >> Do you happen to know which way would be more consistent with similar references to STUN/ICE in cluster C238? In rfc4583bis, the reference to ICE is currently Normative.
    >
    >    Correct. rfc4583bis actually defines ICE procedures for BFCP, so Normative is fine.
    >
    >    4582bis contains the following sentence:
    >
    >       "In order to facilitate the initial establishment of NAT bindings, and
    >       to maintain those bindings once established, BFCP entities using an
    >       unreliable transport are RECOMMENDED to use STUN [12] Binding
    >       Indication for keep-alives, as described for ICE [17]."
    >
    >    As you can see, it is actually described in the ICE spec on how to use STUN. So, therefore I agree that both should be either Normative or Informative. And, since there is a "RECOMMENDED", I assume that means they would have to be Normative.
    >
    >    Regards,
    >
    >    Christer
    >
    >
    >
    >        On 5/21/20, 1:55 PM, "Keith Drage" <drageke@ntlworld.com<mailto:drageke@ntlworld.com>> wrote:
    >
    >            I do note that the normative requirement is at SHOULD strength.
    >
    >            However there are no statements that support an implementor to decide
    >            under what conditions the requirement can be ignored, or the
    >            consequences of ignoring, one or other of which should really be there.
    >
    >            The lack of that information does not help in trying to evaluate the
    >            consequences of updating the reference, versus leaving the reference as
    >            it is - note that there is a risk both ways.
    >
    >            The quick review I did, resulted in my feeling that the upgrade would be
    >            OK, but I am not an expert in that area. Certainly I think either way it
    >            should go to the WG for a quick review.
    >
    >            Keith
    >
    >            On 21/05/2020 19:09, Jean Mahoney wrote:
    >> Hi Charles,
    >>
    >> On 5/21/20 11:31 AM, Charles Eckel (eckelcu) wrote:
    >>> Hi Jean,
    >>>
    >>> I am more comfortable sticking with RFC 5389 at this point in time.
    >>
    >>
    >> Ack.
    >>
    >>
    >>> That said, I know that in another thread Christer made the point of
    >>> being consistent across the cluster in terms of referencing RFC 5389
    >>> vs. RFC 8489. If the decision is for the cluster switch to RFC 8489,
    >>> we can consider that. However, I think we would need to take it back
    >>> to the working group to see if there are any issues because I do not
    >>> believe the working group was not tracking this update and did not
    >>> anticipate its publication.
    >>
    >>
    >> FWIW, so far, the one C238 document that has updated their STUN
    >> reference to RFC 8489 has an informative ref to it, not a normative one.
    >>
    >> Thanks!
    >>
    >> RFC Editor/jm
    >>
    >>
    >>>
    >>> Cheers,
    >>> Charles
    >>>
    >>> On 5/20/20, 12:36 PM, "Jean Mahoney" <jmahoney@amsl.com<mailto:jmahoney@amsl.com>> wrote:
    >>>
    >>>     Authors,
    >>>
    >>>     We note that this document has a normative reference to RFC 5389
    >>> (STUN),
    >>>     which was obsoleted just recently by RFC 8489.  Do you wish to
    >>> update
    >>>     this reference to RFC 8489?
    >>>
    >>>     Thanks!
    >>>
    >>>     RFC Editor/jm
    >>>
    >>>
    >
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