Definition ∞ Inter-server communication refers to the exchange of data and signals between different server machines within a distributed computing environment. This process enables various components of a system to coordinate actions and share information to collectively perform tasks. It is fundamental for the operation of scalable online services and distributed applications.
Context ∞ In blockchain networks, efficient and secure inter-server communication is critical for validator nodes to reach consensus, propagate transactions, and synchronize ledger states. The reliability and latency of this communication directly influence network performance, scalability, and decentralization. Optimizations in this area are often reported as key technical advancements in blockchain protocols aiming for higher throughput.