NTP leap seconds, CBOR serialization, OAuth fine-grained auth

IETF working groups advanced several protocol drafts, with the bulk of traffic on NTP leap-second handling, CBOR serialization last call, and OAuth authorization interest. Adoption calls and technical clarifications rounded out the day across IDR, MoQ, IPv6, and ANIMA.

Dropping leap seconds from NTPv5

The NTP working group discussed a proposal to remove leap-second support from the NTPv5 draft after BIPM widened the UTC-UT1 tolerance. Broad agreement emerged across the thread among eight participants. Time-sync implementers would no longer need to carry leap-second machinery in the next major NTP revision.

CBOR serialization WG Last Call

The CBOR working group held last call on draft-ietf-cbor-serialization-09 for preferred-plus and deterministic serialization. An active participant objected to terminology and scope choices. The draft will fix how CBOR is encoded when deterministic or preferred forms are required for interoperability.

Fine-grained authorization in OAuth

The OAuth working group issued a call for interest in fine-grained authorization, framed around AI agents and pointing to existing drafts on missions and RAR remediation. Twelve participants generated substantial traffic. Clearer patterns beyond coarse scopes matter for anyone building agent or constrained-client authorization.

Simplifying the MoQ Object ID model

A MoQ working group thread proposed sequential Object IDs starting at zero to simplify the model and improve relay caching. Five participants exchanged a short set of messages. The change would make object identity and cache behavior more predictable for media-over-QUIC relays.

Flowspec content-filter adoption call

The IDR working group opened an adoption call for draft-cui-idr-content-filter-flowspec-04, adding a packet-content filter component to FSv2 aimed at DDoS use cases. Replies were mostly supportive, with a minor numbering correction noted. Operators would gain finer BGP flowspec filtering when volumetric attacks require payload inspection.

Ambiguity for RIOs longer than /48

On the IPv6 list, participants examined ambiguity in handling Route Information Options longer than /48 for ULA known-local entries in draft-ietf-6man-rfc6724-update-25, now nearing AUTH48. Seven people contributed. Resolving the rule prevents inconsistent source-address selection for unique local addresses.

BGP maximum-paths Cease subcode

The IDR working group started a two-week adoption call for draft-abraitis-idr-maximum-paths-subcode-02, which adds a Cease subcode signaling that max paths were exceeded under ADD-PATH. Discussion remained light. The explicit signal helps operators diagnose path exhaustion instead of inferring it from generic cease reasons.

ANIMA GRASP and DNS autoconfig drafts

The ANIMA working group called for adoption of two expired drafts covering GRASP-DNS-SD and NOC autoconfig. Conversation stayed limited to three active participants. Service discovery and NOC autoconfiguration via GRASP and DNS remain relevant for autonomic networking deployments.