Ethereum Protocol 101 by Mario Havel

​Course (4/7): Running Ethereum: Clients, Networking & Nodes

​What does it actually mean to “run Ethereum”?

​In this session, we explore:

• ​Execution clients vs Consensus clients

• ​Validator clients

• ​Peer-to-peer networking (DevP2P & libp2p)

• ​Sync strategies

• ​What happens when you start a node

​We’ll break down:

• ​Client architecture

• ​How nodes discover peers

• ​How blocks and transactions propagate

• ​How networking impacts security

​If you’ve never run a node before, this is your bridge from theory to practice.

​If you have run one, this will help you understand what your machine is actually doing.

​This session is especially useful for developers considering deeper protocol contribution or preparing for the Study Group.