Subnetting is the practice of dividing a larger blockchain network into smaller, manageable sections called subnets. Each subnet can operate independently, allowing for increased scalability and efficiency.By isolating transactions and activities within subnets, networks can handle more users and reduce congestion on the main blockchain. This is particularly beneficial during peak times when the main chain may become slower due to high transaction volumes.Subnetting also enhances security by limiting the impact of potential attacks. If one subnet is compromised, the others can continue to function normally, protecting overall network integrity.Moreover, different subnets can have specific purposes or rules, catering to particular use cases or communities. This flexibility allows developers to create tailored environments within the broader network.In summary, subnetting improves performance, scalability, and security, making it a valuable approach for managing and optimizing blockchain networks.