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
2024-04-17 ETSI-ISG-ZSM IETF 2024-05-13
Action needed 		Liaison on ongoing work on Network Digital Twin
2024-04-16 ITU-T-SG-13 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of March 2024)
2024-04-16 ITU-T-SG-13 nvo3 LS on initiation of new work item ITU-T Y.IMT2020-DDP “Future networks including IMT-2020: requirements and framework of distributed data plane”
2024-01-10 ETSI-TC-CYBER-QSC-WG ipsecme, lamps, pquip, tls Quantum Safe Cryptographic Protocol Inventory
2023-12-20 tsvwg 3GPP-TSGCT-CT1, 3GPP-TSGCT-CT3, 3GPP-TSGCT-CT4, 3GPP-TSGRAN-RAN2, 3GPP-TSGSA-SA2, 3GPP-TSGSA-SA4 LS on draft-ietf-tsvwg-ecn-encap-guidelines and draft-ietf-tsvwg-rfc6040update-shim
2023-11-27 3GPP-TSG-SA-WG5 IETF Reply LS on Multi-SDO Autonomous Networks (AN) Formal Liaison: Call for Candidate Proposals for AN SDO Information Sharing
2023-11-14 ITU-T-SG-13 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of November 2023)
2023-10-24 ITU-T-SG-11 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG11 (as of October 2023)
2023-10-09 teas 3GPP-TSGSA-SA2, 3GPP-TSGSA-SA3, 3GPP-TSG-SA-WG5, O3GPPTSGRAN3 LS on a Framework for Network Slices in Networks Built from IETF Technologies
2023-08-30 O3GPPTSGRAN3 tsvwg Reply LS on DTLS for SCTP next steps and request for input
2023-08-28 ITU-T-SG-13 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of July 2023)
2023-08-28 IAB ETSI URI scheme registration for postal addresses (ETSI TS 102 818 V3.4.1 (2022-05))
2023-08-21 3GPP-TSGSA-SA3 tsvwg Reply LS on DTLS for SCTP
2023-08-04 tsvwg 3GPP-TSGSA-SA3, O3GPPTSGRAN3 2023-09-11
Action needed 		DTLS for SCTP next steps and request for input
2023-06-07 3GPP tsvwg 2023-12-01
Action needed 		Reply LS on SCTP-AUTH and DTLS
2023-06-05 ITU-T-SG-11 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG11 (as of May 2023) [to ITU-T SG2, ITU-T SG13, ITU-T SG15, ITU-T SG17, ITU-T JCA-QKDN, ETSI ISG-QKD, ISO/IEC JTC1/SC27 and AG4, IRTF QIRG and IETF Opsawg]
2023-04-17 ITU-T-SG-13 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of March 2023)
2023-03-09 3GPP-TSG-SA-WG5 netmod LS on need for modeling isInvariant and SystemCreated in YANG
2023-02-08 detnet 3GPP-TSGSA-SA2 Response to 3GPP SA2 LS on 3GPP 5G System acting as a DetNet node
2023-01-24 ITU-T-SG-13 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of November 2022)
2023-01-10 ITU-T-TSAG IETF LS on new ITU-T Focus Group on metaverse (FG-MV) [to all ITU-T SGs, ITU-R SG5 and various external organizations]
2022-12-20 tsvwg 3GPP Updated LS to 3GPP regarding SCTP-AUTH and DTLS
2022-10-25 3GPP-TSGSA-SA2 detnet 2022-12-30
Action needed 		LS on 3GPP 5G System acting as a Detnet node
2022-10-24 ETSI-ISG-NFV ccamp, opsawg, teas 2022-12-30 LSout to IETF TEAS, OPSAWG and CCAMP WG on the start of work on profiling specification for multi-site connectivity services based on ACTN
2022-09-28 lpwan 3GPP 2022-10-20
Action needed 		Liaison statement from the IETF LPWAN WG to 3GPP
2022-07-26 ITU-T-SG-13 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of July 2022)
2022-07-14 ETSI-ISG-MWT ccamp Follow Up on SDN SBI YANG models for Service Automation and Plugtest announcement
2022-06-27 BROADBAND-FORUM teas LS on information about BBF’s release of technical report on network slicing management
2022-01-11 ESTI-TC-ESI lamps Liaison statement to IETF on RFC 5280 attribute length limitations
2021-10-04 ITU-T-CITS ipwave 2021-11-19
Action needed 		LS on provision of inputs to the online ITS communication standards database
2021-07-26 ITU-T-SG-13 opsawg LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of July 2021)
2021-07-08 mpls 3GPP 2021-07-27
Action needed 		Liaison from the MPLS Working Group on Network Slicing Identifier scalability
2021-06-21 ITU-T-SG-20 IETF LS on initiation of new work item on draft Recommendation ITU-T Y.DT-interop, “Interoperability framework of digital twin systems in smart cities and communities”
2021-05-24 tsvwg O3GPPTSGRAN3 Progress on DTLS on SCtP
2021-05-24 TSV 3GPP-TSGCT-CT4 Future Port Allocation Requests
2021-03-18 3GPP-TSG-SA-WG5 IETF LS to TM Forum on introduction of 3GPP Autonomous Network Levels
2021-03-18 3GPP-TSG-SA-WG5 IETF Reply LS on Progressing the Multi SDO Autonomous Network coordination
2021-03-18 3GPP-TSGCT-CT4 IESG 2021-04-14 Reply LS on port allocation for the W1 interface
2021-03-18 ITU-T-SG-13 opsawg LS/o on work progress on Quantum Key Distribution (QKD) network in SG13 (as of March 2021) [from ITU-T SG13]
2021-03-05 O3GPPTSGRAN3 tsvwg 2021-05-17 Remove the user message size limitation for DTLS over SCTP
2021-01-29 3GPP-TSG-SA IETF LS on Use of Inclusive Language in 3GPP specifications
2021-01-21 IESG 3GPP-TSG-CT, 3GPP-TSGCT-CT4 Reply LS on port allocation for the W1 interface
2020-12-16 quic 3GPP-TSGSA-SA2 Response to "LS on ATSSS Phase 2 conclusions"
2020-11-30 3GPP-TSGSA-SA2 quic LS on ATSSS Phase 2 conclusions
2020-10-12 quic 3GPP-TSGSA-SA2 Response to "LS on ATSSS Phase 2 Requirements to IETF QUIC Working Group"
2020-09-24 3GPP-TSGSA-SA2 quic LS on ATSSS Phase 2 Requirements to IETF QUIC Working Group
2020-07-16 3GPP-TSG-CT IESG LS on port allocation for the W1 interface
2020-07-16 3GPP-TSG-SA-WG5 teas LS on SA5 Rel-17 work on SLA
2020-07-16 3GPP-TSG-SA-WG5 teas LS on adding transport information in 3GPP NRM to facilitate Cross-domain OAM coordination
2020-06-25 3GPP-TSGCT-CT4 IESG Reply LS on port allocation
2020-06-16 3GPP-TSGCT-CT4 IESG Reply LS on port allocation
2020-05-13 quic 3GPP-TSG-SA Re: LS on need for Multi-Path QUIC for ATSSS
2020-04-01 3GPP IETF LS on need for Multi-Path QUIC for ATSSS
2020-02-10 ETSI-ISG-ZSM teas Liaison from ISG ZSM to IETF for TN coordination
2019-12-09 ETSI-ISG-SAI IETF Liaison statement from ETSI ISG SAI on Securing Artificial Intelligence
2019-12-04 3GPP-TSG-SA-WG5 IETF LS on analysis of GSMA GST attributes
2019-11-06 quic 3GPP Response to questions about QUIC network level troubleshooting capabilities
2019-10-14 3GPP-TSGCT-CT4 quic 2020-02-14 LS on 3GPP CT WG4 feedback on QUIC network level troubleshooting capabilities
2019-05-16 3GPP-TSGRAN-RAN2 IETF Update to LS on RoHC utilization for Ethernet header compression
2019-04-03 IETF 3GPP-TSGRAN-RAN2 In Response to 3GPP RAN2’s LS on RoHC utilization for Ethernet header compression
2019-03-25 3GPP-TSGRAN-RAN2 IETF 2019-04-18
Action needed 		LS on RoHC utilization for Ethernet header compression
2019-03-23 ITU-T-SG-11 ippm LS/r on current status of the draft Recommendation ITU-T Q.3961 (reply to SG12-LS59)
2019-01-24 ESTI-TC-CYBER SEC Reply LS from ETSI TC CYBER to IETF Security area directors regarding “enterprise TLS”
2018-12-05 SEC ESTI-TC-CYBER 2019-01-18
Action needed 		Statement from the IETF SEC Area Directors regarding "enterprise TLS"
2018-11-15 ESTI-TC-CYBER SEC Reply LS to IETF Security area directors on middlebox
2018-10-26 ITU-T-SG-12 IETF LS/r on current status of the draft Recommendation ITU-T Q.3961 (reply to SG11-LS52)
2018-08-14 l2sm 3GPP-TSG-SA-WG5 Further Information About IETF Work Relevant to Network Slicing
2018-07-26 3GPP-TSGCT-CT4 dmm, IETF LS OUT on User Plane Analysis
2018-07-26 3GPP-TSGRAN-RAN2 IETF LS on 3GPP Interface transport protocol port number assignment
2018-07-23 3GPP-TSG-SA-WG5 IETF Reply LS on IETF work related to the management and orchestration of network slicing
2018-07-20 dmm 3GPP-TSGCT-CT4 DMM WG Response to 3GPP CT4 on LS CP-173160 (New Study Item on User Plane Protocol in 5GC )
2018-06-15 l2sm 3GPP-TSG-SA-WG5 IETF work related to the management and orchestration of network slicing
2018-05-17 ITU-T-SG-12 ippm LS/r on current status of the draft Recommendation ITU-T Q.3961 (reply to SG11-LS31)
2018-04-11 3GPP-TSGCT-CT4 dmm 2018-07-20
Action needed 		CP-173160: New Study Item on User Plane Protocol in 5GC
2018-03-02 ETSI bmwg 2018-12-08
Action needed 		Specification of Networking Benchmarks and Measurement Methods for NFVI
2018-02-13 ITU-T IETF LS/o on the results of the 1st meeting of the ITU-T Focus Group on Machine Learning for Future Networks including 5G (FG ML5G)
2018-01-16 3GPP-TSGSA-SA2 6man, dmm, INT LS on indicating service continuity usage of the additional IPv6 prefix in Router Advertisement
2018-01-02 SAE-CELL-V2X ipwave LS on Establishment of SAE Cellular V2X Technical Committee and Associated Task Forces
2017-09-25 ITU-T-SG-20 IETF 2018-01-28
Action needed 		LS on IPv6 work items
2017-07-19 SEC ESTI-TC-CYBER 2017-10-06
Action needed 		IETF Security Area Director Concerns with McTLS
2017-06-27 IETF 3GPP Netslices BoF
2017-06-15 3GPP-TSG-SA IETF Reply LS to liaison statement on requesting support for defining next generation protocols
2017-06-07 ETSI-NTECH ART, sipcore 2017-06-22
Action needed 		Liaison Statement to IETF on location source parameter
2017-04-18 ETSI-ISG-MEC IETF 2017-06-09
Action needed 		ETSI ISG MEC (Multi access Edge Computing) Phase 2
2017-01-23 IAB ETSI-NGP-ISP Liaison Statement to ETSI NGP ISP
2016-11-29 tsvwg 3GPP 2017-03-10 Response to Reply LS in response to (SP-150579) on 3GPP Work on Explicit Congestion Notification for Lower Layer Protocols from 3GPP SA
2016-08-02 ETSI-NGP IAB, IETF 2016-10-10
Action needed 		Liaison about ETSI ISG NGP (Next Generation Protocols)
2016-06-10 mmusic 3GPP-TSGSA-SA4 Response to Liaison Statement to IETF MMUSIC concerning 'Improved end-to-end QoS Enhancements for MTSI'
2016-06-01 3GPP-TSGCT-CT1 INT 2016-07-25
Action needed 		LS on consideration of NB-IoT as a target technology in the LPWAN BoF
2016-05-04 3GPP-TSG-SA-WG5 dime 2016-05-23 LS to IETF for clarification on RFC 4006 for Diameter Base Protocol
2016-02-02 ITU-T-SG-12 ippm LS/r to ITU-T SG11 on “QoS-related work in ITU-T SG11” (SG11-LS 105) [from ITU-T SG12]
2016-01-31 3GPP-TSGCT-CT1 ecrit Response to LS on NG eCall support for the EU
2016-01-04 ITU-T-SG-11 ippm LS/r on QoS-related work in ITU-T SG11 (reply to SG12 - LS 90)
2015-12-18 3GPP-TSGSA tsvwg Reply LS on 3GPP Work on Explicit Congestion Notification for Lower Layer Protocols
2015-12-02 3GPP-TSGSA-SA2 ecrit Reply LS on eCall support for the EU from IETF Ecrit WG
2015-11-16 3GPP-TSGSA-SA4 avtext 2016-01-25
Action needed 		LS to IETF AVTEXT on Video Region-of-Interest (ROI)
2015-11-09 ETSI-NTECH IETF 2015-12-08
Action needed 		Call for Proof of Concept demonstrations on autonomic networking
2015-07-21 tsvwg 3GPP 2015-10-30 Explicit Congestion Notification for Lower Layer Protocols
2015-07-16 3GPP-TSGSA-SA4 avtext LS to IETF on Video Region-of-Interest (ROI)
2015-06-19 ecrit 3GPP 2015-07-19 Liaison Statement on NG eCall support for the EU
2015-05-04 ETSI-ISG-QSC IETF Creation of ETSI ISG QSC (Quantum Safe Cryptography)
2015-05-01 ETSI-ISG-IP6 IETF Liaison about ETSI ISG IP6 creation to IETF
2014-11-25 ETSI-NTECH anima 2014-12-15
Action needed 		Liaison Statement to IETF regarding Comments on ANIMA WG charter from ETSI NTECH AFI and suggested synergies and collaboration
2014-11-19 ETSI-NTECH ecrit 2014-12-15
Action needed 		Liaison Statement to IETF on HELD protocol extensions
2014-02-13 OPS ETSI-E2NA LS from ETSI E2NA to IETF on HOST ID standardization
2013-11-20 ETSI-E2NA OPS 2013-12-10 Liaison Statement to IETF on HOST ID standardization
2013-09-17 mmusic 3GPP-TSGSA-SA4 Reply to Liaison statement to IETF concerning Missing IANA Registration Information on SDP Attributes in RFC 2326
2013-09-05 ETSI-TC-EE eman Liaison on monitoring of energy efficiency in telecommunication network infrastructures
2013-07-18 3GPP-TSGSA-SA4 mmusic 2013-09-17 LS on Missing IANA Registration Information on SDP Attributes in RFC 2326
2013-06-19 mmusic 3GPP Reply to Liaison statement to IETF concerning 3D video formats signalling in SDP
2013-06-07 ITU-R paws 2013-11-11
Action needed 		Working document towards a preliminary new Report ITU-R [LMS.CRS2]
2013-02-22 3GPP mmusic 2013-04-09 Liaison statement to IETF concerning 3D video formats signalling in SDP
2013-02-11 ITU-T-SG-16 IETF LS to 3GPP, 3GPP2, ABU, ATSC, CEA, DLNA, DMB, DVB, ECMA, ETSI, IEC TC 100, IETF, IMTC, ITU-R SG 6, OIPF, OMA, SCTE, SMPTE, UCIF, VESA, W3C, WBU, and WiFi Alliance on Consent of High Efficiency Video Coding (HEVC)
2012-09-25 codec 3GPP Liaison from IETF CODEC working group to 3GPP Regarding Speech and Audio Coding Standardization
2012-06-04 3GPP mmusic 2012-08-07 On RTCP Bandwidth Negotiation
2012-02-07 3GPP codec Reply to Liaison Statement on Speech and Audio Coding Standardization
2011-11-14 codec 3GPP IETF Response to 3GPP SA WG4 Liaison Statement on Codec Discussion in IETF
2011-08-23 3GPP codec Reply to Liaison Statement on Speech and Audio Coding Standardization
2011-08-01 codec 3GPP 2011-08-26 Liaison to the 3GPP SA WG4 regarding Speech and Audio Coding Standardization
2011-03-17 3GPP IETF LS out Reply to "Reply LS to 3GPP TSG CT4 on support of ECN"
2010-10-21 RAI ETSI-TC-HF Response to LS from ETSI
2010-07-17 ETSI-TC-HF IETF ETSI Human Factors: Request for advice and processing of two issues within mobile and IP-based text telephony
2009-11-10 IETF ETSI-TISPAN Liaison Statement from the IETF Internet Area Directors to ETSI TISPAN on DHCP authentication
2009-09-24 3GPP IETF 2009-12-04 LS on Joint Workshop on IPv6 Migration
2009-09-15 3GPP IETF 2009-11-20 Comments on IETF PhoneBCP Draft
2009-08-24 3GPP IESG, RAI 2009-11-13 LS on Codec Discussion in IETF
2009-07-21 3GPP IETF Interim Comments on IETF PhoneBCP Draft
2009-07-09 ITU-T-SG-13 IETF 2009-09-01 Request for up-dating the contact information
2008-05-13 3GPP IETF 2008-06-23 LS reply on invalid connection address for IPv4 and IPv6
2008-04-21 3GPP mmusic, sipping 2008-05-09 LS on offer/answer procedures
2008-02-07 3GPP IETF 2008-04-11 LS on Clarification of M3UA usage in 3GPP networks
2008-01-07 mmusic 3GPP-TSGSA-SA4 2008-04-07 IETF Liaison Statement from MMUSIC wg to 3GPP TSG SA WG4: on-going work on RTSP 2.0 and request for information on RTSP extensions
2008-01-07 mmusic ETSI-TISPAN 2008-04-07 IETF Liaison Statement from MMUSIC wg to ETSI TISPAN: on-going work on RTSP 2.0 and request for information on RTSP extensions
2007-07-11 3GPP IETF LS on Y.ngn-account
2007-06-04 3GPP IETF 2007-09-11 LS on Service Identification
2006-07-12 ITU-T-NGNMFG IETF Liaison Statement: Liaison to ITU-T SG 4 and SG 15 (Q14), TeleManagement Forum, 3GPP SA5, 3GPP2 TSG-S (WG5), ETSI TISPAN (WG8), ATIS TMOC, OASIS (WSDM), OSS/J, MEF, IPDR, DMTF, TTC, OCAF, SNO, and IETF Operations and Management Area
2006-06-18 ITU-T-NGNMFG ITU-T-SG-4 Liaison Statement: ITU-T SG 15 (Q14), TeleManagement Forum, 3GPP SA5, 3GPP2 TSG-S (WG5), ETSI TISPAN (WG8), ATIS TMOC, OASIS (WSDM), OSS/J, MEF, IPDR, DMTF, TTC, OCAF, and IETF Operations and Management Area (copy to SG 4)
2006-01-06 ITU-T-NGNMFG IETF Liaison to TMF, 3GPP SA5, and ETSI TISPAN WG8 on XML-based Management Harmonization (copy to OASIS, TMOC, ITU-T SG 4, DMTF and IETF)
2005-10-04 ITU-T-NGNMFG OPS EDH Facilities: Documentation Structure, Web/FTP information, Email list
2005-10-04 ITU-T-NGNMFG OPS Liaison to ITU-T SG 15 (Q14), TeleManagement Forum, 3GPP SA5, 3GPP2 TSG-S (WG5), ETSI TISPAN (WG8), ATIS TMOC, OASIS (WSDM), OSS/J, MEF, IPDR, DMTF, TTC, OCAF, and IETF Operations and Management Area (copy to SG 4)
2005-03-30 ITU-T-NGNMFG OPS Liaison to ITU-T SG 15(Q14), TeleManagement Forum, 3GPP SA 5, 3GPP2 TSG-S WG 5, ETSI TISPAN WG8, ATIS TMOC, OASIS WSDM, and IETF Operations and Management Area
2004-08-27 ipcdn ETSI-AT-DIGITAL Re: ETSI liaison from ETSI AT-Digital AT-D AT #9 (2004) D25
2004-08-12 ETSI ipcdn Liaison Statement from the ETSI WG-D to IETF IPCDN (pdf)

Total Statements: 143