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Liaison Statements

Additional information about IETF liaison relationships is available on the IETF webpage and the Internet Architecture Board liaison webpage.

Date From To Deadline Title
2026-06-17 lamps ETSI-TC-ESI-PQC-WG RE: PQC migration of CMS signatures
2026-06-17 O-RAN-WG11 SEC Liaison on Support for Publication of draft-ietf-tls-mlkem and draft-ietf-tls-mldsa
2026-06-16 ETSI-TC-ESI-PQC-WG lamps 2026-07-03 PQC migration of CMS signatures
2026-06-11 BROADBAND-FORUM green, nmop, opsawg, rtgwg Recently published Broadband Forum Work Items (June 2026)
2026-06-09 BROADBAND-FORUM rtgwg Response to ITU-T SG11-LS128, Ref: SG11-TD993/GEN
2026-05-29 3GPP-TSG-SA-WG3 emu 2026-08-07
Action needed
LS on supporting transmission of large identity in EAP-AKA’
2026-05-26 bmwg, ippm ITU-T-SG-12 The UDP Speed Test Protocol (UDPSTP) for One-Way IP Capacity Metric Measurement
2026-05-21 ITU-T ccamp, detnet, teas 2026-06-15
Action needed
LS on Invitation to update the information in the IMT-2020 and IMT-2030 roadmap
2026-05-21 ITU-T opsawg LS on completion of the FG-AINN WG1 Draft Deliverable “Technical Specification -Vocabulary for Artificial Intelligence Native for Telecommunication Networks”
2026-04-27 ITU-T-SG-11 spring, srv6ops LS on initiation of new work item Q.SRv6-DPTM "Data plane test methods for devices supporting Segment Routing over IPv6”
2026-04-27 ITU-T-SG-11 spring LS on initiation of new work item Q.sdwan-iopt-ts "Test suite for interoperability testing of software-defined wide area networking (SD-WAN) service"
2026-04-27 ITU-T-SG-11 bmwg Title: LS/r on progress of IETF's work on "Benchmarking Methodology for Segment Routing" (reply to IETFBMWG-LS3)
2026-04-27 ITU-T-SG-11 bmwg, rtgwg LS on initiation of new work item Q.BNG-FMI "Signalling Requirements for virtualized Broadband Network Gateway in Fixed-Mobile Interworking"
2026-04-27 ITU-T-SG-11 core Title: LS on initiation of new work item Q.TSTP_CoAP “Test suite structure and test purposes for conformance testing of the Constrained Application Protocol (CoAP)”
2026-04-27 diem ITU-T-SG-17 2026-07-06
Action needed
Reply to LS on initiation of two new work items on digital emblem
2026-04-23 tls ITU-T-SG-13 Reply to LS on the work item related to QKD and TLS integration framework in SG13
2026-04-21 3GPP-TSG-SA-WG3 SEC LS on Post-Quantum Cryptography RFCs
2026-04-15 ITU-T-SG-2 GEN, IAB 2026-08-15
Action needed
Member State consultation on closure of delegation of E.164 country codes in the Domain Name System in e164.arpa
2026-04-03 BROADBAND-FORUM ccamp, opsawg Recently published Broadband Forum Work Items (March 2026)
2026-04-02 IEEE-802-11 tls 2026-07-01
Action needed
Liaison communication to IETF regarding draft-ietf-tls-mlkem
2026-04-01 ITU-T-SG-13 detnet LS on deterministic networking work in Q6/WP4 of ITU-T SG13
2026-04-01 ITU-T-SG-11 opsawg LS on work progress on quantum key distribution network (QKDN) in SG11
2026-04-01 ITU-T-SG-11 stir LS on initiation of two new work items Q.CSSIWF and Q.SSP4SIP
2026-04-01 ITU-T-SG-13 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of February 2026)
2026-04-01 ITU-T-SG-11 opsawg, rtgwg LS on initiation of new work item Q.MP-GenAI “Monitoring parameters of network supporting generative artificial intelligence services”
2026-04-01 ITU-T-SG-11 ccamp, dispatch LS on the initiation of new Technical Report QSTR.ACC “Signalling and protocol considerations on networking for AI-agent collaboration”
2026-03-18 ITU-T-SG-13 tls 2026-05-29 LS on the work item related to QKD and TLS integration framework in SG13
2026-02-02 ITU-T-SG-17 SEC LS on SG17 new work item X.LLMCC: “Guidelines for Large Language Model data security based on Confidential Computing”
2026-02-02 ITU-T-SG-17 SEC LS on SG17 new work item XSTR.sem-AIA: “Technical Report: Security evaluation methods for artificial intelligence agent”
2026-01-30 ITU-T-SG-17 IAB, IESG 2026-03-09 LS on the progress of the Correspondence Group on SG17 Strategy for AI Security in Telecommunications/ICTs (CG-AISEC-STRAT)
2026-01-30 ITU-T-SG-17 diem LS on initiation of two new work items on digital emblem
2026-01-30 ITU-T-SG-17 ART, IAB, SEC LS on SG17 progress on child online protection
2026-01-19 ITU-T-SG-11 bmwg, srv6ops 2026-02-03 LS/r on Technical Report QSTR.SRv6_conf “Method for verifying conformance to segment routing over IPv6 " (reply to IETF SRv6OPS-LS1, IETFSRv6OPS-LS2)
2026-01-19 ITU-T-SG-11 spring LS on initiation of new work item Q.SFCP "Monitoring parameters for service function orchestration based on service function chaining"
2026-01-19 ITU-T-SG-11 6man, spring LS on agreement of draft new Supplement ITU-T Q.Suppl.79 (ex Q.sup.sdwan-srv6) "Implementation of Software-defined wide area networking (SD-WAN) service based on Segment Routing IPv6 (SRv6)"
2026-01-19 ITU-T-SG-11 spring LS on consent of draft new Recommendation ITU-T Q.3065 (ex Q.SFCO) “Signalling requirements and data models for service function chaining orchestration based on SRv6”
2026-01-19 ITU-T-SG-11 WIT LS on the new work item Q.DC-SA-Ms “Media session protocols for interfaces on converged media function for data channel enhanced IMS network”
2026-01-09 SEC 3GPP-TSG-SA-WG3 Reply to LS on PQC transition for RFC 6509
2026-01-07 bmwg ITU-T-SG-11 Progress of IETF's work on "Benchmarking Methodology for Segment Routing"
2025-12-19 3GPP-TSG-SA teas LS Response on IETF Network Slice Application in 3GPP 5G End-to-End Network Slice
2025-12-18 ITU-T-SG-13 anima LS on consent of draft new Recommendation ITU-T Y.3064 (formerly Y.KM-AN) “Knowledge management for autonomous networks”
2025-12-18 ITU-T-SG-13 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of November 2025)
2025-12-18 ITU-T-SG-13 opsawg LS on initiation of new work item ITU-T Y.IMT2020-COMO “Framework and Requirements for cross-domain observability M&O of IMT-2020 networks and beyond”
2025-12-18 ITU-T-SG-11 teep LS on determination of draft new Recommendation ITU-T Q.5015 (ex Q.cco-mec) "Signalling requirements for orchestration supporting confidential computing in multi-access edge computing"
2025-12-18 ITU-T-SG-13 mops LS on initiation of new Technical Report ITU-T YSTR.UC-CNB “Use cases of Converged IMT-2020 and beyond networks and broadcasting network technologies for developing countries”
2025-12-17 BROADBAND-FORUM idr Follow-up Liaison Request to IETF IDR WG on BGP Data Model
2025-12-17 BROADBAND-FORUM idr Follow-up Liaison Request to IETF IDR WG on BGP Data Model
2025-12-17 netmod 3GPP-TSG-SA-WG5 LS reply to S5-254318 on the need for modeling isInvariant and SystemCreated in YANG
2025-12-17 ITU-T-SG-13 detnet LS on deterministic networking work in Q6/WP4 of ITU-T SG13
2025-12-17 ITU-T-SG-11 opsawg Title: LS on work progress on quantum key distribution network (QKDN) in SG11
2025-12-10 BROADBAND-FORUM ippm LS response to IETF on "Quality of Outcome (QoO)"
2025-12-05 ETSI-ISG-ZSM nmop LS from ETSI ISG ZSM on Work on ZSM Framework for NaaS
2025-12-02 BROADBAND-FORUM ippm, netmod, rtgwg Recently published Broadband Forum Work Items (November 2025)
2025-12-01 ITU-T-SG-13 tsvwg LS initiation of draft new Supplement ITU-T Y.sup.cni “Cloud Computing - Technical Considerations of Network Infrastructure”
2025-11-21 BROADBAND-FORUM idr oLS to IETF on BGP data model
2025-11-19 ESTI-TC-CYBER SEC LS to IETF on standards in response to the European Union Cyber Resilience Act (CRA)
2025-11-15 ippm BROADBAND-FORUM 2026-01-31
Action needed
Liaison to BBF on “Quality of Outcome (QoO)”
2025-11-12 W3C ART application/vp+sd-jwt media type registration request from W3C
2025-11-12 ITU-T-SG-17 IAB, IESG 2025-12-01 LS on SG17 AI For Good AI Security Workshop Report and Presentations
2025-11-10 tsvwg 3GPP-TSG-RAN-WG3, 3GPP-TSG-SA-WG3 LS on DTLS for SCTP Progress Report
2025-11-06 ITU-T-SG-15-Q14 ccamp, ivy, netmod, teas 2026-03-04 LS on IM/DM modelling coordination
2025-11-06 ETSI-ISG-ISAC cats Progress of ETSI ISG ISAC Work Items
2025-11-04 ART W3C application/vp+sd-jwt media type registration request from W3C
2025-10-30 3GPP-TSG-SA-WG5 netmod LS reply to S5-254318 on the need for modeling isInvariant and SystemCreated in YANG
2025-10-30 3GPP-TSG-RAN-WG3 teas Reply LS on “IETF Network Slice Application in 3GPP 5G End-to-End Network Slice”
2025-10-30 3GPP-TSG-SA-WG3 SEC 2025-11-14 LS on PQC transition for RFC 6509
2025-10-30 WBA IESG, IETF, radext Liaison Letter from the Wireless Broadband Alliance (WBA) in Support of IETF Drafts Related to Roaming, RADIUS Enhancements, Cellular / Wi-Fi Convergence and Mobility
2025-10-28 IEEE-802-1 detnet Liaison response to LS 35 on work items related to deterministic networking in SG13
2025-10-22 ITU-T-FG-AINN IETF 2026-01-31
Action needed
LS on information and call for contributions to the new Focus Group on Artificial Intelligence Native for Telecommunication Networks (FG-AINN)
2025-09-24 RTG MEF Liaison Statement from the IETF Routing Area to Mplify on SD-WAN Related Work
2025-09-12 ITU-T-SG-15 ccamp, mpls, pce, teas 2025-10-06 Optical Transport Networks & Technologies Standardization Work Plan, Issue 35
2025-09-11 teas 3GPP, 3GPP-TSG-RAN-WG3, 3GPP-TSG-SA-WG2, 3GPP-TSG-SA-WG3, 3GPP-TSG-SA-WG5 2025-10-31 LS on “IETF Network Slice Application in 3GPP 5G End-to-End Network Slice”
2025-09-09 lamps, rats ETSI-ISG-NFV Reply to "LSout to IETF RATS & LAMPS on SEC020 Identity Trust Model"
2025-09-08 ivy BROADBAND-FORUM Reply to LS: Update on BBF-entitled project "Network Resource Model (NRM)"
2025-09-03 tls GSMA Response to [2002] LS to IETF TLS WG – asking for RFC publication timeline of Post-quantum hybrid ECDHE-MLKEM Key Agreement active internet draft
2025-09-03 ITU-T-SG-13 opsawg LS on initiation of new work item ITU-T Y.bDDN-ENTPM “Big data driven networking - Evaluation of network traffic prediction model”
2025-09-03 ITU-T-SG-13 OPS Work progress on Quantum Key Distribution (QKD) network in ITU-T SG13 (as of July 2025)
2025-09-03 ITU-T-SG-13 opsawg New Technical Reports ITU-T YSTR.Af-KBSC “Architectural Framework for Knowledge-Based Semantic Communication over Public IMT Networks” and ITU-T YSTR.SemGenAI “Framework for Semantic Communication Pipe-line with Generative AI-based Reconstruction”
2025-09-03 ITU-T-SG-13 detnet Title: LS on deterministic networking work in Q6/WP4 of ITU-T SG13
2025-08-15 OPS ETSI-ISG-ZSM In response to your liaison statement on "ZSM work on Agent and Autonomy"
2025-08-14 ITU-T-SG-13 teep LS on consent of draft new Recommendation ITU-T Y.3165 (ex Y.CCO-req) “Requirements of orchestration supporting confidential computing for network slices in IMT-2020 networks and beyond”
2025-08-06 SEC ITU-T-SG-17 Reply to [2001] LS on Towards a common definition of Zero Trust
2025-07-28 ipsecme, SEC ITU-T-SG-13 In response to LS on the work item related to QKD and IPSec integration framework in SG13
2025-07-24 ETSI-ISG-ISAC cats Approval of ETSI ISG ISAC Work Item #5
2025-07-22 ITU-T-JCA-IMT2020 ccamp, detnet, dmm, teas 2025-10-16
Action needed
LS on Invitation to update the information in the IMT-2020 and beyond roadmap
2025-07-17 bmwg, srv6ops ITU-T-SG-11 Reply to "new work item QSTR.SRv6_conf"
2025-07-16 ITU-T-SG-11 srv6ops LS/r on new work item QSTR.SRv6_conf “Method for Verifying Conformance to SRv6" (reply to IETF SRv6OPS-LS1)
2025-07-15 ETSI-TC-EE green Liaison out to IETF GREEN working group
2025-07-11 ITU-T-SG-15 IESG Title: LS on Consented and Agreed Recommendations
2025-07-11 ITU-T-SG-15 ccamp, ivy, netmod, teas 2025-08-06 LS on IM/DM modelling coordination
2025-07-11 ITU-T-SG-13 ipsecme 2025-09-30 Title: LS on the work item related to QKD and IPSec integration framework in SG13
2025-07-11 ITU-T-SG-5 green Title: LS/r on creation of IETF GREEN working group (reply to IETFGreen-LS1)
2025-07-02 ETSI-ISG-ZSM ART, OPS, opsawg 2025-09-08