Internet Protocol Over WDM Network and Packet Communication System and Method in the IPOW Network

摘要

The present invention provides an Internet Protocol Over WDM (IPOW) architecture capable of directly routing / transmitting a packet through a wavelength division multiplexing (WDM) optical communication network, and packet transmission in such a network structure. System and method.;According to the wavelength division multiplexing Internet protocol network structure of the present invention, a plurality of sub-rings connecting integer number of terminals each having a unique use wavelength are allocated, and an amount of connection of the sub ring to which a unique use wavelength is allocated. A main ring connecting an integer number of connection nodes, wherein the one sub ring is connected to the main ring through the connection node, and a packet is transmitted and received within the sub ring and a packet is transmitted and received between the sub ring and the main ring. Sub ring control system for controlling the, and the main ring control system for controlling the flow of packets transmitted and received in the main ring.;Here, each terminal and the connection node adds / drops only signals having a unique wavelength of use, and the sub-ring control system and the main ring control system drop all wavelength-multiplexed signals of the sub-ring and the main ring to reverse each other. Multiplexing is carried on the unique wavelength of use of the destination terminal and then multiplexed and transmitted to the subring and the main ring, and the subring control system adds the identification code (λ tag) of the subring to which the destination terminal belongs to the transmission packet. By transmitting to the ring, packets can be sent and received to terminals connected to other sub-rings connected to the main ring. The present invention can route packets at high speed and greatly simplify the network structure. In addition, there is an effect that enables dozens of terabit traffic processing without expensive optical devices or high-performance traffic routing devices such as optical systems and terabit routers.