Internet Engineering Task Force

IETF IT service window: A 2-hour service window starting at 1900 UTC on 14 August 2025 is planned to allow a change in the underlying cloud infrastructure, improving performance, reliability, and manageability of the affected services. Read more: www.ietf.org/blog/it-infr...

ANRP logo

The #IETF123 @irtf.org Open Session featured Haarika Manda and Hendrick Chech presenting their ANRP-winning research on Internet access inequities and LEO satellite network measurements and analysis. Watch the full presentations: www.ietf.org/blog/ietf123...

The #IETF123 meeting is wrapping up! 1700+ participants around the world came together—in Madrid & online—to work on emerging Internet technologies. Thanks to host Ericsson and to all the meeting sponsors for their support. On demand recordings let you watch any of the 100+ sessions: ietf.org/live/

More #IETF123 livestreaming! "Migrating Telecom to Quantum-Resistant Cryptography on a Global Scale" at 11:15 UTC on 24 July 2025 presented by John Preuß Mattsson, an expert in cryptographic algorithms and security protocols at Ericsson Research: www.ietf.org/live/ietf123...

Watch select sessions from #IETF123 Live! Starting on 23 July with the @iab.org open session and the plenary session. And, recordings from all other meeting sessions are available on demand: www.ietf.org/live/

Audience members seated at the AI PREF working group session at the IETF 123 Madrid meeting viewing a large screen displaying slides, in a room with ornate ceiling and lighting.

Sponsor board for the IETF 123 Madrid meeting displaying logos of various sponsors, including Akamai, Comcast, DENIC, Ericsson, NTT, and IBERIA, categorized under titles like Gold Diversity and Inclusion, Gold Running Code, and more.

The #IETF123 meeting is underway! More than 1500 participants around the world—in Madrid and online—are working on emerging Internet technologies through 25 July 2025. Thanks to host Ericsson, and to all the meeting sponsors for their support: www.ietf.org/meeting/123/

Looking to get started in something new? These #IETF123 meeting sessions are likely to include discussions and proposals that are accessible to a broad range of Internet technologists whether they are new to the IETF or long-time participants: www.ietf.org/blog/ietf123...

a black and white photograph of a 3x3 grid of window panes of varying trascluscence

The AI Preferences (AIPREF) Working Group began work this year to make it easier to express how AI models should use Internet content. Work is well underway on a compressed timeline for delivery. Read the latest progress update and the path ahead: www.ietf.org/blog/ai-pref...

The #IETF123 Madrid final agenda is now published! See what's planned for the 100+ sessions, #IETFHackathon, and more 19-25 July 2025. If you haven't already, register today to join 1000+ leading technologists from around the world in-person or online: www.ietf.org/meeting/123/

Montreal night skyline with text: IETF 124 Montreal, 1-7 November 2025

Registration is now open for #IETF124 Montreal (1-7 November 2025) hosted by Comcast and NBCUniversal ! Plan to join 1000+ leading Internet technologists from around the world in-person and online for 100+ working sessions and more, including an #IETFHackathon : www.ietf.org/meeting/124/

The updated and improved New Participant Program will continue at #IETF123 Madrid (19-23 July)! After overwhelmingly positive feedback on the first edition at #IETF122, registration is now open for the expanded program at #IETF123. Read more: www.ietf.org/blog/new-par...

Welcome to Verisign as the newest IETF Global Host—a multi-year commitment at the highest tier of meeting sponsorship! The commitment and generous contributions of Global Hosts and sponsors provides critical support for the work of the IETF community: www.ietf.org/blog/global-...

The 2024 edition of the IETF Annual Report is now available! Read it today for a summary of IETF, Internet Architecture Board ( @iab.org ), Internet Research Task Force ( @irtf.org ), and RFC Editor community activities from last year: www.ietf.org/blog/annual-...

REMINDER: Super early registration for #IETF123 ends UTC 23:59 on 2025-06-02! Register now to join 1000+ leading Internet technologists from around the world 19-25 July 2025 in Madrid or online. More info and registration at: www.ietf.org/meeting/123/

photo of a speaker at the IABOPEN session during the IETF 122 Bangkok meeting

At #IETF122 Bangkok, a special session about the upcoming World Summit on Information Security (WSIS) 20 year review provided an overview of how the IAB is engaging in this opportunity to recommit to the multistakeholder approach to Internet governance: www.ietf.org/blog/technic...

aerial photo of Madrid with text overlaid: IETF 123 Madrid, 19-25 July 2025

REMINDER! If you have a topic for discussion or an idea about possible work to share during #IETF123, Birds of a Feather (BOF) sessions are one way to get initial conversations started. Consider submitting a BOF proposal by 23 May. More information at: www.ietf.org/process/bofs/

a group photo of 9 final-year undergraduate students majoring in Computer Science and Engineering at the National Institute of Technology Karnataka (NITK) at IETF 122, their their first in-person IETF experience

A Journey from Surathkal to the IETF: #IETF122 Bangkok marked the first in-person participation for final-year undergraduate students majoring in Computer Science and Engineering at the National Institute of Technology Karnataka (NITK) in India. Read more: www.ietf.org/blog/our-fir...

aerial photo of Madrid overlaid with the text: IETF 123 Madrid 19-25 July 2025

Do you have a topic for discussion or an idea about possible work to share during #IETF123? Birds of a Feather (BOF) sessions are one way to get initial conversations started. Consider submitting a BOF proposal by 23 May. More information at: www.ietf.org/process/bofs/

Attendees applauding at an IETF Meeting, with text calling to join the 123 Madrid meeting on 19-25 July 2025.

Super early registration for #IETF123 ends in less than a month! Register today to join 1000+ leading Internet technologists from around the world 19-25 July 2025 in Madrid or online. Never participated in an IETF Meeting before? Check it out here: youtu.be/bXNb-Oa4UJw

a double exposure-like image of a pad lock connecting chain on a warehouse door.

During the #IETF122 Hackathon, a team from Mauritius, the United States, and Kenya implemented post-quantum cryptography components currently missing from widely-used open source software. Read more at: www.ietf.org/blog/open-so...

End-to-end encryption based on IETF-developed MLS is set be used on 100s of millions of #Android phones, Apple iPhones & other devices thanks to updated RCS specifications, enabling interoperable encryption between different platforms for the first time: www.ietf.org/blog/rcs-ado...

We are thrilled to share that @cisco.com has contributed new equipment valued at US$1.3M to support IETF meeting networks that provide unsurpassed performance to the more than 1000 participants who gather onsite and remotely around the world 3x each year: www.ietf.org/blog/cisco-e...

The Internet Research Task Force (IRTF) Open session at #IETF122 featured Applied Networking Research Prize (ANRP) presentations on using Large Language Models (LLMs) to support network configuration and on secure collaborative path control in BGP: Watch: www.ietf.org/blog/ietf122...

IETF Live The IETF 120 meeting will take place in Vancouver and online with the plenary session on 24 July 2024. The IETF Hackathon starts on 20 July, with working group and other sessions starting on Monday, 2...

Did you miss a session at #IETF122 Bangkok hosted by Juniper Networks last week? Watch recordings of all sessions on-demand as more than 1200 leading technologists gathered for more than 100 working sessions, the IETF Hackathon, and more: www.ietf.org/live/

Thanks to #IETF122 Bangkok host Juniper Networks, Gold Sponsors Akamai, Huawei and Ericsson, and all the other IETF sponsors supporting the global community that develops technologies at the foundation of the Internet! Check out livestreams at: www.ietf.org/live/

It's underway! The week of #IETF122 Bangkok hosted by Juniper Networks has kicked off with the #IETFHackathon. Select sessions are streamed live and all sessions are available on demand after the meeting. Find links and more information at: www.ietf.org/live/

It's almost time for #IETF122 Bangkok! If you haven't already, check out the Suggested Sessions for Getting Familiar with New Topics post. There's still time to register for in-person or remote participation, too! www.ietf.org/blog/ietf122...

a tulip with and ethernet cable plugging into it.

A sustainable Internet: How to get there from here. After a successful side meeting during the #IETF121 meeting, the new Sustainability and the Internet (SUSTAIN) Proposed Research Group will have its first meeting during #IETF122 Bangkok. Learn more: www.ietf.org/blog/sustain...

IETF email service issues have been resolved. All messages in the queue were delivered by 0700 UTC on 2025-03-04 and the system is now keeping up. More at: www.ietf.org/blog/email-d...

As of 2025-03-03 23:23 UTC we are experiencing delays—sometimes over 4 hours—in delivering messages to IETF email lists. We are working on short-term and long-term fixes and will update this post as the status evolves: www.ietf.org/blog/email-d...