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Method for realizing light burst exchange connection control

A technology of optical burst switching and connection control, which is applied in the field of optical fiber communication, and can solve problems such as bandwidth failure and premature release, and achieve the effect of solving signaling message errors or loss and realizing connection control

Inactive Publication Date: 2006-08-23
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for realizing the JIT signaling protocol connection control in the optical burst switching network, to ensure that the control packets go through the same path, and to solve the problem that the bandwidth cannot be released or released prematurely due to the loss of the release or refresh packet problems, so as to realize the correct and timely reservation and release of links and resources based on the JIT signaling protocol

Method used

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  • Method for realizing light burst exchange connection control
  • Method for realizing light burst exchange connection control

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Embodiment Construction

[0019] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] attached figure 1 It is a schematic diagram of the optical burst switching network structure applicable to the connection control method of the present invention. It is formed by connecting edge nodes (entry edge nodes and exit edge nodes) and core nodes through wavelength division multiplexing links. A WDM link connection includes several control channels and data channels.

[0021] Method of the present invention carries out as follows concrete steps:

[0022] 1. First set: the burst header and the burst data packet are transmitted in the "best effort" mode, the burst release packet adopts the timing retransmission control mechanism, and the corresponding control packets include the burst header and the burst release packet It has the same unique tag as the release confirmation packet. A burst control packet routing table is set at ...

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Abstract

A method for realizing light burst exchange connection control is to combine the release packet timed duplicate transmission, burst control packet route list with the backward release of the burst control packet route list and set up a burst control list on each core node including marks, routes, preserved resource and its usage of to find out a complete same route in the network ensured to be passed by the burst packet head, release packet and a certification packet by the list based on exclusively controlling the packet marks.

Description

technical field [0001] The present invention relates to a method for realizing optical burst switching connection control, in particular to a connection control method for realizing JIT (Just in Time, just in time) signaling protocol in optical burst switching network, so as to solve the problem of signaling message error or loss Caused channel reservation and release problems. It belongs to the technical field of optical fiber communication. Background technique [0002] Stimulated by the development of optical communication technologies such as data services and wavelength division multiplexing / dense wavelength division multiplexing (WDM / DWDM), traditional optical networks are moving towards a new generation of highly flexible, highly reliable and low-cost IP-oriented services. The direction of optical network development. Among the currently proposed switching technology schemes for realizing IP over WDM, Optical Burst Switching (OBS) is an ideal optical switching metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/12H04J14/02H04L12/56H04L1/00H04L45/74H04L47/724
Inventor 吴龟灵陈建平李新碗王晖
Owner SHANGHAI JIAOTONG UNIV