Definition ∞ A robust networking layer in a blockchain system refers to the underlying communication infrastructure designed to ensure reliable, efficient, and secure data transmission among nodes. This layer is critical for propagating transactions and blocks across the network, even under adverse conditions. Its resilience directly impacts the network’s overall performance and censorship resistance.
Context ∞ Robust networking layer is a technical focus in blockchain development, particularly for projects aiming to achieve high scalability and global reach. News might discuss optimizations or upgrades to this layer when addressing network congestion, latency, or resistance to denial-of-service attacks.