Cross-layer communication refers to the interaction between different blockchain layers or networks. Most blockchain architectures consist of various layers that handle specific functions, such as consensus, transaction processing, and data storage. These layers can be independent and serve distinct purposes.Effective cross-layer communication enables seamless data transfer and interaction between these layers. For example, a layer handling smart contracts may need to communicate with a layer focused on scaling solutions to improve efficiency and user experience. This integration helps to enhance interoperability, allowing different protocols and systems to work together. It supports functions like asset transfers, information sharing, and execution of complex transactions across multiple chains. Improved cross-layer communication can lead to reduced latency and lower transaction costs, making the entire ecosystem more efficient. As blockchain technology evolves, fostering these connections becomes crucial for enabling more sophisticated applications and broader adoption.