[IPP] [dnssd] RFC 9665 on Service Registration Protocol for DNS-Based Service Discovery

[Kennedy, Smith (Wireless & IPP Standards)]

I need to read the RFC closely but we need to consider the roadmap / timeline for supporting SRP in addition to mDNS. I don't know if there is discussion about this transition in the RFC. But we won't be able to drop mDNS for the foreseeable future.

Smith



On Jun 12, 2025, at 6:37 AM, Michael Sweet via ipp <ipp at pwg.org> wrote:

CAUTION: External Email
All,

FYI, this RFC enables dynamic DNS-SD updates for regular DNS, and I will probably reference it in my next draft of the IPP Everywhere v2.0 specification...


Begin forwarded message:

From: rfc-editor at rfc-editor.org<mailto:rfc-editor at rfc-editor.org>
Subject: [dnssd] RFC 9665 on Service Registration Protocol for DNS-Based Service Discovery
Date: June 11, 2025 at 9:26:52 PM EDT
To: ietf-announce at ietf.org<mailto:ietf-announce at ietf.org>, rfc-dist at rfc-editor.org<mailto:rfc-dist at rfc-editor.org>
Cc: rfc-editor at rfc-editor.org<mailto:rfc-editor at rfc-editor.org>, drafts-update-ref at iana.org<mailto:drafts-update-ref at iana.org>, dnssd at ietf.org<mailto:dnssd at ietf.org>

A new Request for Comments is now available in online RFC libraries.


       RFC 9665

       Title:      Service Registration Protocol for DNS-Based
                   Service Discovery
       Author:     T. Lemon,
                   S. Cheshire
       Status:     Standards Track
       Stream:     IETF
       Date:       June 2025
       Mailbox:    mellon at fugue.com,
                   cheshire at apple.com
       Pages:      36
       Updates/Obsoletes/SeeAlso:   None

       I-D Tag:    draft-ietf-dnssd-srp-25.txt

       URL:        https://www.rfc-editor.org/info/rfc9665<https://www.rfc-editor.org/info/rfc9665>

       DOI:        10.17487/RFC9665

The Service Registration Protocol (SRP) for DNS-based Service
Discovery (DNS-SD) uses the standard DNS Update mechanism to enable
DNS-SD using only unicast packets.  This makes it possible to deploy
DNS-SD without multicast, which greatly improves scalability and
improves performance on networks where multicast service is not an
optimal choice, particularly IEEE 802.11 (Wi-Fi) and IEEE 802.15.4
networks.  DNS-SD Service registration uses public keys and SIG(0) to
allow services to defend their registrations.

This document is a product of the Extensions for Scalable DNS Service Discovery Working Group of the IETF.

This is now a Proposed Standard.

STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the Official
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