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Medium access control device and medium access control method of optical packet switch network and optical packet switch network

A technology of media access control and packet switching, which is applied in multiplexing system selection devices, data switching networks, selection devices, etc., and can solve problems such as wasting network resources

Active Publication Date: 2012-12-19
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for applications with a variable bit rate (Variable Bit Rate, VBR), such as data services (Data Service), network resources may be wasted

Method used

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  • Medium access control device and medium access control method of optical packet switch network and optical packet switch network
  • Medium access control device and medium access control method of optical packet switch network and optical packet switch network
  • Medium access control device and medium access control method of optical packet switch network and optical packet switch network

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Embodiment Construction

[0025] The present invention takes the ring-type optical packet switching network as an example to design its network topology and node system architecture, and designs an applicable media access control mechanism according to the ring-type network example. In the implementation example of the present disclosure, a medium access control device can be provided to control the optical packet switching network.

[0026] image 3 An example is used to illustrate the network topology and architecture of a ring-type optical packet switching network, which is consistent with some disclosed implementation examples of the present invention. refer to image 3, the ring optical packet switching network 300 includes a plurality of ordinary nodes (Ordinary Node) and at least one server node (Server Node), and the nodes are connected by optical fibers 320 to form a ring network. General nodes are represented by cubes, such as nodes 301 - 304 and nodes 306 - 309 ; and servo nodes are repres...

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Abstract

The invention discloses a medium access control device and a medium access control method, which are used in an optical packet switch network. The medium access control device comprises a bandwidth distribution module and a medium access control processor. The bandwidth distribution module determines the transmissible quota of data of each node in the network by using a mechanism of a probabilistic transmission quota and credit balance, dynamically notifies a downstream node of the left transmission quota, and allows the downstream node having the credit balance to use the left transmission quota of the upstream node. The medium access control processor determines the uploading, unloading and noise filtration of a plurality of data channels by using control information carried by a control channel and updates the corresponding content in the control information.

Description

technical field [0001] The present invention relates to a Medium Access Control (MAC) device and method of an Optical Packet-Switched Network (Optical Packet-Switched Network) and the network. Background technique [0002] Metro Network (Metro Network) is mainly based on Synchronous Optical Network (Synchronous Optical Network, SONET) or Synchronous Digital Hierarchy (Synchronous Digital Hierarchy, SDH) ring network. The ring network has a simple network architecture, easy implementation of Add-Drop Multiplexer (ADM), and high-speed error protection (High-Speed ​​Protection Switching) capability to meet high survivability requirements, so it has always been It is the main network structure of the metropolitan network. The SONET / SDH network is essentially a Circuit Switched Based network, which has considerable advantages for applications with constant bit rates (CBR), such as voice services. However, for applications with a variable bit rate (Variable Bit Rate, VBR), such ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04Q11/00H04J3/08H04J14/02
Inventor 李诗伟林玉明杨启瑞赵一芬罗志鹏
Owner IND TECH RES INST