The Cisco ONS 15454 Multiservice Transport Platform (MSTP) allows a metropolitan (metro) or regional dense wavelength-division multiplexing (DWDM) system to become as intelligent and flexible as the highly successful Cisco ONS 15454 Multiservice Provisioning Platform (MSPP), including a wide service interface mix, service transparency, a flexible topology, a completely reconfigurable traffic pattern, and simplified operations.Metro and regional DWDM networks must be able to support point-to-point as well as ring topologies with complex traffic patterns, which may also extend across multiple networks. The Cisco ONS 15454 MSTP can be configured to support any metro or regional DWDM topology, allowing a single solution to be provisioned for the network. The ultimate topology flexibility is achieved through a fully reconfigurable optical add/drop multiplexer (ROADM). The Cisco ONS 15454 MSTP offers ROADM functions that allow zero to 40 channels of pass-through or add/drop; A-Z wavelength provisioning; and full, real-time power monitoring of each wavelength.