According to Foresight News, Sui has become the first Layer 1 (L1) project to run SCION, which is currently in the testnet phase. SCION aims to address issues related to internet routing, such as network latency, reliability, and security, by organizing Autonomous Systems (AS) into Isolation Domains (ISD). This allows for pre-specified network routes, known as 'path-aware networking,' enabling optimal traffic routing and backup routes for load balancing.

The current internet relies on the Border Gateway Protocol (BGP) to route traffic, which dynamically determines the next hop without a known route. This can lead to inefficiencies and traffic congestion. SCION, however, allows clients to pre-determine network routes, providing a more efficient and reliable method of data transmission. This is particularly beneficial for Sui validators, RPC nodes, and surrounding infrastructure, optimizing latency and providing pre-planned backup paths to bypass DDoS attacks or congestion.

SCION's implementation in Sui enhances its Web3 stack, which includes zkLogin for authentication, objects for modeling application lifecycles, and Walrus for blob storage. With SCION, Sui is poised to offer one of the most robust Web3 infrastructures in the world.