COIN Motivation and Objectives Jeffrey He, Huawei Marie-José Montpetit, Triangle Video

Background 1981: ”End-To-End Arguments in System Design” 1998: “Active Networking and End-To-End Arguments” 2018: Softwarization of the networking functions(SDN, NFV) Rising of programmable switching and P4 programming language Active Research Activities In-Net Computing for high performance distributed systems in DC DNN (Deep Neural Network) training Frontend KV (Key-Value) caching Consensus system such as Paxos ACM SIGCOMM 2018 Workshop on In-Network Computing (NetCompute 2018) Low latency/high BW services are driving Distributed Computing Advanced AR/VR NSF Workshop on Grand Challenges in Edge Computing, 2016 ACM SIGCOMM 2018 Workshop on Mobile Edge Communications (MECOMM 2018)

Motivations and Challenges Network programmability provides new opportunities to enhance performance and availability as well as to develop new types of networked applications and systems. Looking at different instantiations of integrating computing and networking, the following questions arise: What are best practices and relevant considerations for computing/networking systems, in particular with respect to previous discussions regarding active networking and end-to-end-arguments? To which level must the abstraction of the programmable data plane be for a network with non-forwarding functions? Are there common principles, abstractions and mechanisms that can be applied across this range of different types of computing/networking applications/approaches? What will the impact of these in-network functions on end-to-end transport protocols and security? What are the incentives for the network to add new computing capabilities and resources in an open ecosystem?

COIN: Computing in the Network Proposing a new IRTF RG COIN wants to focus on the challenges facing computing in the network across all network segments and identify how these challenges are met in current and future research. Moreover, the specific use cases will link the challenges to some future network architectures and implementations. Goals: Understanding the use cases and different types of network programmability and their different characteristics Understanding relationship to and impact on existing Internet protocols and frameworks. Investigating architectural questions such as system architecture and protocol designs for in-network computing Developing common terminology, concepts and potentially system elements such as data plane protocols and management concepts. Providing guidance for potential future IETF work on distributed and in-network computing

COIN: Computing in the Network COIN wants to build a forum to explore and discuss how the network architectures and protocols will adapt to the introduction of distributed systems and decentralized computing resources. Hence the following outcomes are proposed: (1) An informational RFC on the challenges of computing in the network (2) An informational RFC on data center (already there and with a draft) (3) A Compute First Networking informational RFC (4) An informational (maybe experimental) RFC on AI/ML and COIN (5) An informational (maybe experimental) RFC on XR and COIN <other specific contributions to be added with the help of the community - to come>

Jeffrey.he@huawei.com marie@mjmontpetit.com