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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">(Apologies for duplication)</span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Hello all,</span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">The NRO RPKI Program [1] has published a blog post explaining the proposed solution to concerns with the current RPKI Trust Anchor configuration, now documented
in the Internet-Draft </span><span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 134, 240);"><a href="https://www.ietf.org/archive/id/draft-nro-sidrops-ta-constraints-00.txt" data-prosemirror-content-type="mark" data-prosemirror-mark-name="link" data-outlook-id="f16c901f-08fe-465c-9ca6-d888562a1570" style="color: rgb(0, 134, 240); margin-top: 0px; margin-bottom: 0px;">https://www.ietf.org/archive/id/draft-nro-sidrops-ta-constraints-00.txt</a></span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">The draft defines a mechanism that allows RPKI Trust Anchors (TAs) to declare which TA is authoritative for which Internet Number Resources, helping prevent
RPKI validation conflicts.</span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">You can read the blog post here:
</span><span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 82, 204); line-height: 22px;"><a href="https://www.arin.net/blog/2025/10/29/nro-rpki-program-series-6/" data-inline-card="" data-card-data="" data-outlook-id="b43f744c-603d-47a4-ab9c-dca92b745c56" style="color: rgb(0, 82, 204); display: inline; margin-top: 0px; margin-bottom: 0px; margin-left: var(--ds-space-negative-025, -2px); border-radius: var(--ds-radius-small, 4px);">https://www.arin.net/blog/2025/10/29/nro-rpki-program-series-6/</a></span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">We welcome feedback and discussion on the
<b>sidrops</b> mailing list [2] and during the upcoming <b>SIDROPS WG session at IETF 124 (Montreal, Nov 3)
</b>[3].</span></p>
<p style="margin: 0cm; font-family: Calibri, sans-serif; font-size: 11pt;">Warm regards,</p>
<p style="margin: 0cm; font-family: Calibri, sans-serif; font-size: 11pt;">Sofía</p>
<p style="margin: 0cm; font-family: Calibri, sans-serif; font-size: 11pt;">—</p>
<p style="margin: 0cm; font-family: Calibri, sans-serif; font-size: 11pt;">[1] <span style="color: rgb(0, 82, 204); line-height: 22px;"><a href="https://www.nro.net/technical-coordination/nro-rpki-program/" data-inline-card="" data-card-data="" data-outlook-id="87d5b2f3-4797-4f61-b391-e8a830e5a4c6" style="color: rgb(0, 82, 204); display: inline; margin-top: 0px; margin-bottom: 0px; margin-left: var(--ds-space-negative-025, -2px); border-radius: var(--ds-radius-small, 4px);">https://www.nro.net/technical-coordination/nro-rpki-program/</a></span></p>
<p style="text-align: left; text-indent: 0px;"><span style="font-family: Calibri, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">[2]
</span><span style="font-family: Calibri, sans-serif; font-size: 11pt; color: rgb(0, 134, 240);"><a href="https://mailman3.ietf.org/mailman3/lists/sidrops@ietf.org/" data-prosemirror-content-type="mark" data-prosemirror-mark-name="link" data-outlook-id="4a65904e-cd2e-4ba8-a573-a19362dc7f5b" style="color: rgb(0, 134, 240); margin-top: 0px; margin-bottom: 0px;">https://mailman3.ietf.org/mailman3/lists/sidrops@ietf.org/</a></span></p>
<p style="text-align: left; text-indent: 0px;"><span style="font-family: Calibri, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">[3]
</span><span style="font-family: Calibri, sans-serif; font-size: 11pt; color: rgb(0, 82, 204); line-height: 22px;"><a href="https://datatracker.ietf.org/meeting/124/session/sidrops" data-inline-card="" data-card-data="" data-outlook-id="903a42ac-4f36-4666-9eb5-d6d77c754c2c" style="color: rgb(0, 82, 204); display: inline; margin-top: 0px; margin-bottom: 0px; margin-left: var(--ds-space-negative-025, -2px); border-radius: var(--ds-radius-small, 4px);">https://datatracker.ietf.org/meeting/124/session/sidrops</a></span><span style="font-family: Calibri, sans-serif; font-size: 11pt;"> </span></p>
<p style="margin: 0cm; font-family: Calibri, sans-serif; font-size: 11pt;"><span style="font-family: "Roboto Mono"; font-size: 10.5pt; color: rgb(23, 43, 77);">____________________________________________________________________</span></p>
<p style="margin: 0cm; font-family: Calibri, sans-serif; font-size: 11pt;"><span style="font-family: "Roboto Mono"; font-size: 10.5pt; color: rgb(23, 43, 77);">Sofía Silva Berenguer</span></p>
<p style="margin: 0cm; font-family: Calibri, sans-serif; font-size: 11pt;"><span style="font-family: "Roboto Mono"; font-size: 10.5pt; color: rgb(23, 43, 77);">NRO RPKI Program Manager</span></p>
<p style="margin: 0cm; font-family: Calibri, sans-serif; font-size: 11pt;"><span style="font-family: "Roboto Mono"; font-size: 10.5pt; color: rgb(23, 43, 77);">e:
</span><span style="font-family: "Roboto Mono"; font-size: 10.5pt; color: rgb(5, 99, 193);"><u><a href="mailto:sofia@apnic.net" data-outlook-id="17db0561-3475-40fe-8a1c-be5d535777fc" style="color: rgb(5, 99, 193); margin-top: 0px; margin-bottom: 0px;">sofia@apnic.net</a></u></span></p>
<p style="margin: 0cm; font-family: Calibri, sans-serif; font-size: 11pt;"><span style="font-family: "Roboto Mono"; font-size: 10.5pt; color: rgb(23, 43, 77);">____________________________________________________________________</span></p>
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