Dave, Thanks for reading the document!
I’d like to better understand your comment. This documents a port assignment, so it describes the port that a given service can be reached, which is also the value used as the destination port in the initial message. Most port assignments are unconcerned with the source port used to contact the service. This document provides the option to use the port as the source port multicast messages. Does that clear things up? Cheers, Nate From: dave seddon <[email protected]> Sent: Tuesday, January 13, 2026 19:01 To: [email protected] Cc: [email protected] Subject: [Int-area] Re: I-D Action: draft-ietf-intarea-multicast-application-port-02.txt Friendly feedback It's unclear, at least to me, until section 2 that the document's primary focus is the "source port. " Adding the word "source" to the draft name "The Multicast Application [Source] Port," Friendly feedback It's unclear, at least to me, until section 2 that the document's primary focus is the "source port." Adding the word "source" to the draft name "The Multicast Application [Source] Port," and to the "Abstract" and "Introduction" sections, would make the document more clear. First mention of "destination port" and "source port": " 2. Assignment The Multicast Application Port SHALL NOT be used as a destination port for any non-multicast messages. It MAY be used as a source port by an application that exclusively uses multicast messages. " On Tue, Jan 13, 2026 at 3:46 PM <[email protected]<mailto:[email protected]>> wrote: Internet-Draft draft-ietf-intarea-multicast-application-port-02.txt is now available. It is a work item of the Internet Area Working Group (INTAREA) WG of the IETF. Title: The Multicast Application Port Authors: Nate Karstens Stuart Cheshire Mike McBride Name: draft-ietf-intarea-multicast-application-port-02.txt Pages: 7 Dates: 2026-01-13 Abstract: This document discusses the drawbacks of the current practice of assigning a UDP port to each multicast application. Such assignments are redundant because the multicast address already uniquely identifies the data. The document proposes assigning a UDP port specifically for use with multicast applications and lists requirements for using this port. This method does not require modification to existing protocol stacks, though recommended updates to make the port easier to use are included. The IETF datatracker status page for this Internet-Draft is: https://datatracker.ietf.org/doc/draft-ietf-intarea-multicast-application-port/<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-ietf-intarea-multicast-application-port/__;!!EJc4YC3iFmQ!TDyqZvLhVP8rY27Q2rSzz2srF9G_0ZPL17GY2wMWodxOznZucF8lA2_ucBqND5OZhw3t-PBB2TK-gKuUM4MNMFEpb-8$> There is also an HTMLized version available at: https://datatracker.ietf.org/doc/html/draft-ietf-intarea-multicast-application-port-02<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-ietf-intarea-multicast-application-port-02__;!!EJc4YC3iFmQ!TDyqZvLhVP8rY27Q2rSzz2srF9G_0ZPL17GY2wMWodxOznZucF8lA2_ucBqND5OZhw3t-PBB2TK-gKuUM4MNqJIBLWQ$> A diff from the previous version is available at: https://author-tools.ietf.org/iddiff?url2=draft-ietf-intarea-multicast-application-port-02<https://urldefense.com/v3/__https:/author-tools.ietf.org/iddiff?url2=draft-ietf-intarea-multicast-application-port-02__;!!EJc4YC3iFmQ!TDyqZvLhVP8rY27Q2rSzz2srF9G_0ZPL17GY2wMWodxOznZucF8lA2_ucBqND5OZhw3t-PBB2TK-gKuUM4MNbqNZ3no$> Internet-Drafts are also available by rsync at: rsync.ietf.org::internet-drafts _______________________________________________ Int-area mailing list -- [email protected]<mailto:[email protected]> To unsubscribe send an email to [email protected]<mailto:[email protected]> -- Regards, Dave Seddon +1 415 857 5102 ________________________________ CONFIDENTIALITY NOTICE: This email and any attachments are for the sole use of the intended recipient(s) and contain information that may be Garmin confidential and/or Garmin legally privileged. If you have received this email in error, please notify the sender by reply email and delete the message. Any disclosure, copying, distribution or use of this communication (including attachments) by someone other than the intended recipient is prohibited. Thank you.
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