A method and device for dynamic bandwidth allocation of an optical burst ring network

A technology of dynamic bandwidth allocation and optical bursting, which is applied in data exchange networks, digital transmission systems, electrical components, etc., and can solve problems such as link resource conflicts and receiver resource conflicts

Active Publication Date: 2019-11-05
NANJING ZHONGXING SOFTWARE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] (2) Receiver resource conflict
[0012] (3) Link resource conflict

Method used

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  • A method and device for dynamic bandwidth allocation of an optical burst ring network
  • A method and device for dynamic bandwidth allocation of an optical burst ring network
  • A method and device for dynamic bandwidth allocation of an optical burst ring network

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Embodiment Construction

[0090] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0091] The optical burst ring network has a master node and one or more slave nodes. The master node is responsible for dynamic bandwidth allocation according to the collected bandwidth requests of each node including itself. In the optical burst ring network, in the system initialization stage, the system administrator configures the number of fixed bandwidth bytes and the load length of each time slot for each node pair on the master node, and the system will request the bandwidth in bytes, Convert to bandwidth requests in units of slots, and assign corresponding slots to each node pair.

[0092] image 3 It is a functional block diagram of a dynamic b...

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Abstract

The invention discloses a method and device for dynamic bandwidth allocation of an optical burst ring network, including in the optical burst ring network, according to the bandwidth request of each node pair input from the outside, generating the bandwidth request of each node pair in bytes fixed bandwidth requests, guaranteed bandwidth requests and non-guaranteed bandwidth requests, and convert the fixed bandwidth requests, guaranteed bandwidth requests and non-guaranteed bandwidth requests of each node pair in units of bytes into time slots Fixed time slot request, guaranteed time slot request and non-guaranteed time slot request; by scheduling the non-guaranteed time slot request of each node pair, determine the non-guaranteed time slot request that actually participates in the non-guaranteed time slot allocation; according to the fixed time slot request, guaranteed time slot request and non-guaranteed time slot request actually participating in non-guaranteed time slot allocation, allocate fixed time slots, guaranteed time slots and non-guaranteed time slots for each node pair, and assign each node pair according to the fixed Timeslots, guaranteed timeslots, and non-guaranteed timeslots generate a bandwidth map.

Description

technical field [0001] The invention relates to a sub-wavelength all-optical switching network, in particular to a dynamic bandwidth allocation method and device for an optical burst ring network. Background technique [0002] The rapid growth of data services worldwide has put forward higher requirements on the transmission capacity of the core backbone network. With the further maturity of dense wavelength division multiplexing technology, the bandwidth on a single fiber is getting larger and larger. Compared with the bandwidth of a single fiber, the existing packet switching speed based on electrical processing is very low. In order to improve the switching speed and bandwidth utilization, optical packet switching is an inevitable development direction. However, due to the immaturity of the optical buffering technology, the store-and-forward mechanism cannot be adopted in the all-optical domain, which makes it difficult to realize all-optical packet switching, and it is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/917H04L47/76
Inventor 杨珂
Owner NANJING ZHONGXING SOFTWARE
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