Intelligent wavelength routing optical network node structure supporting link management protocol

Abstract

The invention discloses a structure with intelligent wavelength routing optical network nodes which supports the link management protocol, the transmit-couple- exchange structures are added to the present simple optical exchanger, the input part of the transmit-couple- exchange structure is made up of several 1x2 branching unit, the optical door switches with the same quantity, one star-coupler and receiver; the output part is made up of one transmitter, several 1x2 optical switches, one optical door switch and several 2x1 coupler. The message format controlled and transmitted by control plane software modules with universal multi-mark exchange is in line with the data package format and processing mechanism defined by the link management protocol (LMP), the transmit-couple-exchange structure ensures that the data from control plane software modules can select any output optical fiber through the node and be transmitted to the others nodes. The invention can support adjacent nodes automatically verify and detect the relation of optical fiber connection between two adjacent nodes, the corresponding relation of all ports on one node can be automatically detected by the follow-up route signal command and transmitting and coupling structure.

Description

technical field [0001] The invention relates to an intelligent wavelength routing optical network node device supporting a link management protocol, which is an intelligent optical network node device composed of an optical transceiver, an optical coupler, an optical switch, an optical switching module, and node control software. The invention belongs to the field of photonic systems in the optical communication technology. Background technique [0002] With the development of society and the advancement of technology, the demand for emerging broadband data services such as broadband video, multimedia services, bandwidth on-demand distribution, and optical path automatic supply continues to grow. Using wavelength division multiplexing (WDM) technology can simultaneously transmit multiple high-speed signals on one optical fiber, which greatly improves the transmission capacity of the optical fiber. The all-optical network solution based on wavelength division multiplexing te...

AI Technical Summary

Problems solved by technology

Due to the good transparency of the all-optical network, pure optical switching nodes will not modify or check the data signals transmitted in the optical channel, making it very difficult to automatically discover the corresponding relationship between ports, which can only be manually configured by installation and commissioning personnel

Due to the variety of actual conditions at the installation site, manual configuration not only increases the operator's equipment training, maintenance, and operating expenses, but also is prone to configuration errors, resulting in wrong configurations when the control plane establishes optical paths. The automatic configuration of the relationship has a very realistic demand, and the existing pure optical switching equipment cannot support the automatic discovery function of the corresponding relationship between the optical fiber ports between nodes

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