An Automatically Switched Optical Network (ASON) is an intelligent optical transport architecture that integrates a dynamic control plane to automate resource discovery, connection management, and restoration. Traditionally, it was necessary to configure cross-connections in the Network Elements (such as an optical switch) to create a new. As a new technology in the transmission network field, an automatically switched optical network (ASON) has advantages over traditional WDM networks in terms of service configuration, bandwidth utilization, and protection mode. Therefore, the site type of optical-layer ASON must.