Re: [Stox] Pete Resnick's IESG feedback on draft-ietf-stox-core
Peter Saint-Andre <stpeter@stpeter.im> Tue, 11 February 2014 15:51 UTC
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Date: Tue, 11 Feb 2014 08:51:35 -0700
From: Peter Saint-Andre <stpeter@stpeter.im>
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Subject: Re: [Stox] Pete Resnick's IESG feedback on draft-ietf-stox-core
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On 2/10/14, 5:11 PM, Peter Saint-Andre wrote: > On 2/10/14, 3:08 PM, Peter Saint-Andre wrote: >> Pete, you wrote: >> >> Section 4 is (nicely) clear on the document architecturally >> describing a gateway. However, traditionally a gateway is >> transparent to the entity that communicates with it: When we >> had SMTP-to-X.400 gateways, the gateway appeared as just another >> SMTP system that noticed special qualities of the address and >> then routed the messages appropriately. >> >> Your "traditionally" sounds like an SMTP phenomenon. In XMPP, we don't >> have intermediate transfer agents, and XMPP servers are designed to use >> add-on modules for additional functionality. So in the XMPP universe it >> makes sense for the operator of an XMPP service to install a module (in >> addition to the XMPP server) that performs the gateway function (we >> often call this a connection manager). >> >> Section 5 describes >> something a bit different. It's not clear that what section 5 >> describes actually is part of the gateway, but rather sounds >> like a combined server which does failover between the >> protocols. I don't think this is a showstopper, but it might >> help implementers significantly if you described in section 5 >> *where* in the model this function occurs. Right now, it >> sounds like the server itself does the addressing failover, >> not the gateway. >> >> Yes, I see your point. This kind of thing is quite likely implementation >> specific (e.g., when the add-on XMPP-to-SIP gateway module gets >> configured into and trusted by the core XMPP server, it might get added >> into an event listener for core stanza delivery if an XMPP lookup fails >> for the remote domain). Let me look at what text might be useful here. > > How is this for proposed text? > > Existing SIP and XMPP server implementations do not typically include > the ability to communicate using the other technology (XMPP for SIP > implementations, SIP for XMPP implementations). One common > architectural pattern is to associate a gateway with the core server > implementation (e.g., in XMPP such a gateway might be called a > "connection manager"). How exactly such a gateway interacts with the > core server to complete tasks such as address lookups and > communication with systems that use the other technology is a matter > of implementation (e.g., the gateway might be an add-on module that > is trusted by the core server to act as a fallback delivery mechanism > if the remote domain does not support the server's native > communication technology). Pete, that text is now in draft-ietf-stox-core-10. Peter -- Peter Saint-Andre https://stpeter.im/
- [Stox] Pete Resnick's IESG feedback on draft-ietf… Peter Saint-Andre
- Re: [Stox] Pete Resnick's IESG feedback on draft-… Peter Saint-Andre
- Re: [Stox] Pete Resnick's IESG feedback on draft-… Peter Saint-Andre
- Re: [Stox] Pete Resnick's IESG feedback on draft-… Pete Resnick