ASON stands for Automatically Switched Optical Network. ASON protect the traffic by defining multiple routes and paths to forward the traffic in case of. Optical-layer ASON, also known as WSON, grooms OCh wavelength services through wavelength selective switching (WSS). Dynamic rerouting is based on dynamic optical cross-connections. Therefore, the site type of optical-layer ASON must. Automatically Switched Optical Network (ASON) is a concept for the evolution of transport networks which allows for dynamic policy-driven control of an optical or SDH network based on signaling between a user and components of the network. The ASON architecture, based on transport, control, and management planes is discussed. Traditionally, it was necessary to configure cross-connections in the Network Elements (such as an optical switch) to create a new.