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[Int-area] Re: Mahesh Jethanandani's No Objection on draft-ietf-intarea-multicast-application-port-08: (with COMMENT)

Joe Touch <touch@beachpine.com> Mon, 03 August 2026 15:40 UTC

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From: Joe Touch <touch@beachpine.com>
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Date: Mon, 03 Aug 2026 08:40:00 -0700
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To: Mahesh Jethanandani <mjethanandani@gmail.com>
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CC: The IESG <iesg@ietf.org>, draft-ietf-intarea-multicast-application-port@ietf.org, int-area@ietf.org, intarea-chairs@ietf.org
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Subject: [Int-area] Re: Mahesh Jethanandani's No Objection on draft-ietf-intarea-multicast-application-port-08: (with COMMENT)
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Hi, Mahesh,

> On Aug 3, 2026, at 8:28 AM, Mahesh Jethanandani via Datatracker <noreply@ietf.org> wrote:
> 
> I support Ketan's DISCUSS on this passage. Reading RFC 6335
> adds a data point worth folding into the resolution: it documents port
> "overloading" (multiple services sharing one port) as occurring in exactly
> three ways -- extension-with-in-band-detection, protocol-family sharing, and
> version-negotiation sharing (the stun/turn split on port 3478 is its worked
> example) -- and none of those three matches this document's model of
> unrelated applications disambiguated purely by an out-of-band multicast
> address. 

An IP address is in-band to the transport layer. It is part of the definition of the socket pair.

Joe

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