Method for realizing separate service in light burst exchange network

Abstract

The method is used for establishing connection under DSH signaling protocol in fiber communication field. It comprises: for circuit simulation real-time service, according to user's upper layer calling request, the DSN signaling completes the time slot allocation for wavelength channel in core node, and establishes the end to end virtual path in OBS network; said virtual path keeps connection during the calling. The wavelength channel is divided into multi time slot units which are respectively and periodically occupied by each call; multi calls share one wavelength channel by using time division multiplexing (TDM). The core node uses time-slot asynchronous mechanism without needing the complex optical synchronous device.

Description

technical field

[0001] The invention relates to a method for realizing differentiated services in an Optical Burst Switching network in the field of communication systems or optical fiber communications, and is particularly suitable for realizing a DSH (Differential Service Hybrid, Differentiated Service Hybrid) in an Optical Burst Switching (OBS, Optical Burst Switching) network. The connection establishment mechanism of the service mixing) signaling protocol mainly solves the exchange control and transmission technology for realizing the circuit emulation real-time service efficiently in the OBS network. Background technique

[0002] The rapid development of the Internet has led to the explosive growth of data services in the network, so higher requirements are placed on the switching and transmission of high-speed broadband networks. With the development and maturity of wavelength division multiplexing (WDM) technology, hundreds of wavelength channels can be accommodated ...

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