Passive optical network system based on generalized multiprotocol label switching (GMPLS) protocol

A label switching protocol, passive optical network technology, applied in the field of optical communication, can solve problems such as access network service quality problems, and achieve the effect of improving network transmission and control efficiency, reducing management and operating costs, and improving service quality

Inactive Publication Date: 2006-01-25
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0005] Aiming at the deficiencies and defects of the passive optical networks in the background technology, the present invention provides a passive optical network system based on a general multi-protocol label switching protocol, so that the optical access network and the service provider's local core network can be seamlessly connected. The integration of the network will form a unified intelligent control and management platform, improve transmission efficiency, optimize resource allocation, and solve the service quality problem of the existing access network

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  • Passive optical network system based on generalized multiprotocol label switching (GMPLS) protocol
  • Passive optical network system based on generalized multiprotocol label switching (GMPLS) protocol
  • Passive optical network system based on generalized multiprotocol label switching (GMPLS) protocol

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[0026] Such as figure 1 As shown, the overall structural diagram of the present invention includes: an optical line terminal OLT1, a plurality of optical network units ONU2, a broadband passive optical distribution network 3, and a broadband passive optical distribution network is passed between an optical line terminal OLT1 and a plurality of optical network units ONU2. The source optical distribution network 3 is connected, and it is characterized in that the optical line terminal OLT1 and the optical network unit ONU2 are used as edge routers in the general multi-protocol label switching protocol GMPLS domain of the core network 4 of the service provider, and communicate with other GMPLS routers in the core network 4 through communication links. The optical line terminal OLT1 alone acts as an integrated service intermediate router in the system, and it is in a dominant position. All communication activities are controlled by the optical line terminal OLT1. The optical netwo...

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Abstract

A passive optical network system based on label exchanging protocol of universal multi-protocol is prepared as connecting optical line terminal OLT to multiple optical network unit ONU by wideband passive optical distribution network , using OLT and ONU as edge router and GMPLS domain of said exchanging protocol for being connected to the other GMPLS router in said multi-protocol by communication link , using OLT as intermediate router of integrated service in system individually for controlling all communication activities , using ONU as inlet router of integrated service in system for executing command of OLT .

Description

technical field [0001] The invention relates to a system in the technical field of optical communication, in particular to a passive optical network system based on a general multi-protocol label switching protocol. Background technique [0002] Passive optical network is a new technology that uses optical fiber to realize broadband access, which can provide ultra-broadband access to meet the requirements of multimedia and real-time service transmission for future users. At present, passive optical network systems mainly include asynchronous transfer mode passive optical network system APON (ITU-T recommendation G.983), passive optical network system EPON based on Gigabit Ethernet (IEEE standard 802.3ah) and gigabit wireless Source Optical Network System GPON (ITU-T Recommendation G.984). These three technologies are the research focus of the access network technology now, and all of them have international standards. [0003] Through literature retrieval to the prior art,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 郭勇范戈惠嫣娇任颖俞辉
Owner SHANGHAI JIAO TONG UNIV
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