Method for controlling information transmission/reception in automatic exchange optical network and its system

A technology for controlling information and optical networks, applied in the field of optical transmission, can solve problems such as slow convergence speed, inability to meet high-bandwidth communications in ASON networks, and large message traffic
CN101064565AActive Publication Date: 2007-10-31ALCATEL LUCENT SHANGHAI BELL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ALCATEL LUCENT SHANGHAI BELL CO LTD
Publication Date
2007-10-31

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Abstract

The invention provides a control information transmission / receiving method and system in ASON, said transmission method includes: a1) picking up control information and encapsulated; b1) mapping said encapsulated control information into the frame structure of the STM-N to insert byte; c1) transmitting the STM-N frame. In said method, the control information includes command, route or link managing information. Based on the invention, a standard container C4 channel of a STM-N possesses useful bandwidth of 1152Kbit / s; further, the control signal adopts ethernet network interface, it can realize the interlinkage between band and other control signal out of band effectively.
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Description

technical field

[0001] The invention relates to optical transmission technology, in particular to a method for transmitting / receiving control information in ASON (Automatically Switched Optical Network) and a system thereof. Background technique

[0002] ASON is defined by ITU-T (International Telecommunication Union Telecommunication Standardization Sector) G.8080. The biggest difference between it and traditional OTN (Optical Transport Network) is that it is a dynamic network, which is reflected in the dynamic allocation of bandwidth and network In terms of topology automatic discovery, the realization of this dynamic feature mainly comes from the role of its control plane. The key technologies for constructing the control plane mainly include routing technology, signaling technology, and link management technology.

[0003] Routing technology performs routing operations and information discovery of network topology and resources, transfers link state information and calcu...

Claims

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