Synchronous Optical Networking (SONET)verification IP Provides efficient and coherent Approach to verify digital line level, transmission path level, virtual path level, virtual channel level, and system interfaces of networking and telecom facilities. The comprehensive SONET Standard is expected to provide the Transport Infrastructure for worldwide telecommunications.It deals with issues such as proper framing, error monitoring, section maintenance, and order wire. It provides synchronization and multiplexing for multiple paths. It also modifies overhead bits relating to quality control.