With the rapid growth of IP services, the demand for network bandwidth is increasing. FiberMall's WDM and OTN solutions strive to optimize and upgrade the transmission network, including the optimization of network structure, transmission equipment and optical cable lines. The ultimate goal of optimization is to achieve a clearer structure of the transmission network, to make the utilization of the network more efficient, to enable the devices to maximize their functions, to make the network have a higher degree of security, and to further expand the network, speed up network upgrade, and develop more new services