The 121st meeting of the Internet Engineering Task Force (IETF) was held in Dublin from November 2 to November 8, 2024, with a total of 982 onsite participants and 501 online participants. This conference, hosted by IETF, attracted a diverse range of attendees and featured numerous sessions and presentations.

The event kicked off with an agenda that included key topics such as the Jonathan B. Postel Service Award and the 2024 Itojun Service Award. The IETF Chair and IESG Report provided an overview of the organization's activities and progress. The Internet Architecture Board (IAB) Report and IRTF Plenary Report also highlighted significant advancements in internet research.

Throughout the week, various groups within the IETF conducted plenary sessions, focusing on areas such as Digital Twin support for SDF, NIPC & SDF hackathon reports, and updates on CBOR (Concise Binary Object Representation) for DNS messages. These sessions were complemented by detailed minutes, bluesheets, chatlogs, and video recordings for each topic.

The agenda also included presentations on email core protocols like JMAP (JavaMail Access Protocol), which covered updates on JMAP extensions and related draft documents. Additionally, there were discussions on secure email management through MIMI (Message Identification Mechanism), including its requirements and protocol architecture.

In the realm of network operations, sessions on IPv6 transport operational guidelines and DNSSEC cryptographic recommendations were particularly noteworthy. These discussions aimed to enhance security and operational efficiency in internet infrastructure.

The conference also featured several hackathons focused on developing new technologies such as SDF at work (NIPC in ASDF) updates and DEEPSPACE lunar IP networking projects. These hackathons provided a platform for participants to collaborate on innovative solutions.

Moreover, there were multiple workshops addressing critical areas like energy efficiency management in networking devices and sustainability practices within the internet community. These workshops underscored the growing emphasis on environmental considerations in internet engineering.

Overall, IETF 121 was a comprehensive event that brought together experts from around the world to discuss cutting-edge technologies and future directions for internet engineering. The extensive participation from both onsite and online attendees ensured a rich exchange of ideas and fostered collaboration among stakeholders in the global internet community.