Re: [Stox] I-D Action: draft-ietf-stox-7248bis-13.txt

Saúl Ibarra Corretgé <saul@ag-projects.com> Thu, 13 October 2016 10:13 UTC

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From: =?utf-8?Q?Sa=C3=BAl_Ibarra_Corretg=C3=A9?= <saul@ag-projects.com>
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Date: Thu, 13 Oct 2016 12:12:55 +0200
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To: Peter Saint-Andre <stpeter@stpeter.im>
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Subject: Re: [Stox] I-D Action: draft-ietf-stox-7248bis-13.txt
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LGTM!

> On 10 Oct 2016, at 04:33, Peter Saint-Andre <stpeter@stpeter.im>; wrote:
> 
> Added an appendix describing the changes from RFC 7248, pasted below for convenience.
> 
> ###
> 
> Appendix A.  Changes from RFC 7248
> 
>   RFC 7248 had already been published when the STOX WG discovered that
>   a related document (since published as [RFC7702]) contained problems
>   that also applied to RFC 7248.  Specifically, the diagrams and
>   protocol flows in RFC 7248 contained errors that reflected an
>   incorrect architecture with gateways on both sides of the protocol
>   exchange; in theory and in practice, presence traffic from an XMPP
>   system would be translated by an XMPP-to-SIMPLE gateway on the XMPP
>   side and received by a normal SIP/SIMPLE system directly (without a
>   receiving gateway on the SIP/SIMPLE side), and traffic from a SIP
>   system would be translated by a SIMPLE-to-XMPP gateway on the SIP
>   side and received by a normal XMPP system (without a receiving
>   gateway on the XMPP side).
> 
>   Therefore, this document makes the following substantive changes from
>   RFC 7248:
> 
>   o  Corrects the architectural assumptions, diagrams, and protocol
>      flows to reflect a single-gateway model in each direction.
> 
>   o  Adjusts terminology to replace the term "SIP Server" with the term
>      "SIP Proxy" or "SIP resence Server" as appropriate, to use the
>      term "notification dialog" for a SIP subscription and the term
>      "presence authorization" for an XMPP subscription instead of the
>      generic term "subscription" in both contexts, etc.
> 
>   o  Clarifies that SIP notification dialogs are used to handle
>      presence authorizations in SIP (e.g., there is no dedicated way to
>      signal outbound cancellation of an authorization as there is in
>      XMPP).
> 
>   o  Clarifies the use of the 'presence.winfo' event package, of the
>      Subscription-State headers (specifically with values of "pending",
>      "active", "closed", or "terminated"), of NOTIFY messages with no
>      body, etc.
> 
>   o  Clarifies the durations of notification dialogs and presence
>      authorizations, and how they are extended in SIP and handled in
>      XMPP.
> 
>   o  Removes the mapping of the XMPP 'id' attribute to the SIP "CSeq"
>      header.
> 
>   o  Describes the handling of multiple connected resources in XMPP.
> 
>   o  Provides information about mitigations for leaks of presence
>      information.
> 
> ###
> 
> On 10/9/16 8:28 PM, internet-drafts@ietf.org wrote:
>> 
>> A New Internet-Draft is available from the on-line Internet-Drafts directories.
>> This draft is a work item of the SIP-TO-XMPP of the IETF.
>> 
>>        Title           : Interworking between the Session Initiation Protocol (SIP) and the Extensible Messaging and Presence Protocol (XMPP): Presence
>>        Author          : Peter Saint-Andre
>> 	Filename        : draft-ietf-stox-7248bis-13.txt
>> 	Pages           : 32
>> 	Date            : 2016-10-09
>> 
>> Abstract:
>>   This document defines a bidirectional protocol mapping for the
>>   exchange of presence information between the Session Initiation
>>   Protocol (SIP) and the Extensible Messaging and Presence Protocol
>>   (XMPP).  This document obsoletes RFC 7248.
>> 
>> 
>> The IETF datatracker status page for this draft is:
>> https://datatracker.ietf.org/doc/draft-ietf-stox-7248bis/
>> 
>> There's also a htmlized version available at:
>> https://tools.ietf.org/html/draft-ietf-stox-7248bis-13
>> 
>> A diff from the previous version is available at:
>> https://www.ietf.org/rfcdiff?url2=draft-ietf-stox-7248bis-13
>> 
>> 
>> Please note that it may take a couple of minutes from the time of submission
>> until the htmlized version and diff are available at tools.ietf.org.
>> 
>> Internet-Drafts are also available by anonymous FTP at:
>> ftp://ftp.ietf.org/internet-drafts/
>> 
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>> 
> 
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Saúl Ibarra Corretgé
AG Projects