Insights from block propagation in the Ethereum P2P network by Mikel Cortes (cortze) | Devcon SEA

Thu, Oct 2, 2025, 12:00 AM

Libp2p’s Gossipsub protocol is one of the most critical pieces of the Ethereum protocol stack, disseminating blocks between nodes on time and ensuring that misbehaving nodes are rejected from the network. ProbeLab has studied the performance of Gossipsub in Ethereum’s P2P network, building tooling to monitor block propagations and spot abnormalities. We revealed ample space for optimisation in the protocol, which will help define the next steps in Ethereum's roadmap. Come and hear our findings! Speaker(s): Mikel Cortes (cortze) Skill level: Intermediate Track: Core Protocol Keywords: Core Protocol, Architecture, Scalability, network, protocol Follow us: https://twitter.com/efdevcon, https://twitter.com/ethereum, https://warpcast.com/devcon Learn more about devcon: https://www.devcon.org/ Learn more about ethereum: https://ethereum.org/ Visit the https://archive.devcon.org/ to gain access to the entire library of Devcon talks with the ease of filtering, playlists, personalized suggestions, decentralized access on Swarm, IPFS and more. Devcon is the Ethereum conference for developers, researchers, thinkers, and makers. Devcon SEA was held in Bangkok, Thailand on Nov 12 - Nov 15, 2024. Devcon is organized and presented by the Ethereum Foundation. To find out more, please visit https://ethereum.foundation/