The ROADM (reconfigurable optical add/drop multiplexer) offers flexible wavelength routing capabilities for mesh, ring, linear add/drop, core and edge DWDM network topologies. The ROADM is configured dynamically to add and drop selected wavelengths at any node in the network, and enables seamlessly changing the network node capacity as needed. The ROADM can be configured remotely and automatically maintains the equalization and power balance of the added and bypassed wavelengths. The ROADM enables fast turn-up of new wavelengths from any site to any site in the network. PacketLight’s ROADM network is managed through PacketLight Lightwatch™ NMS.