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Asymmetric caching and forwarding module, packet switching node composed thereof, and network

A technology of packet switching nodes and forwarding modules, which is applied in the direction of data switching networks, wavelength division multiplexing systems, multiplexing system selection devices, etc., and can solve the problems of ineffective utilization, ineffective use of port bandwidth resources, Problems such as dynamic configuration cannot be performed to achieve the effect of performance

Pending Publication Date: 2017-11-10
南京曦光信息科技研究院有限公司
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AI Technical Summary

Problems solved by technology

In this case, the bandwidth resources of ports with low port bandwidth occupancy cannot be effectively used, and the unused port bandwidth resources cannot be allocated to ports with 100% bandwidth occupancy by configuring the switching node.
That is, the available port bandwidth of existing packet switching nodes cannot be effectively utilized because it cannot be dynamically configured

Method used

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  • Asymmetric caching and forwarding module, packet switching node composed thereof, and network
  • Asymmetric caching and forwarding module, packet switching node composed thereof, and network
  • Asymmetric caching and forwarding module, packet switching node composed thereof, and network

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Embodiment Construction

[0040] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0041] figure 1 It is a schematic diagram of the architecture of the asymmetric buffering and forwarding module according to the present invention, including a control interface, a flow monitoring and scheduling unit, an electrical buffering unit, at least one receiver and at least one transmitter, and it is characterized in that the number of the transmitters is small Depending on the number of receivers, the operating wavelengths of at least k transmitters are configured by the traffic monitoring and scheduling unit;

[0042] The receiver, the transmitter, and the traffic monitoring and scheduling unit are all connected to the electrical buffer unit; the traffic m...

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Abstract

The invention discloses an asymmetric caching and forwarding module, a packet switching node composed thereof, and a network. According to the invention, a photoelectric hybrid packet switching node with the configurable bandwidth of a software defined port takes the design that the number (m*n) of receivers in the asymmetric caching and forwarding module is greater than the number k of transmitters as the basis, and employs the topological function of an optical switching matrix reconfiguration physical layer to achieve the dynamic configuration of the port bandwidth through combining with a control module and employing the SDN network configuration. According to the invention, the bandwidth of a port with the abundant bandwidth is used for supplementing the bandwidth of a congestion port, thereby improving the utilization rate of the total bandwidth of the switching node. According to the scheme of the invention, the operation that the photoelectric hybrid packet switching node receives the data messages transmitted by the remaining photoelectric hybrid packet switching nodes to a local node is not affected during the dynamic distribution of the port bandwidth, thereby achieving the optimization of network-level performances.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to a photoelectric hybrid packet switching technology with configurable port bandwidth. Background technique [0002] At present, the packet switching nodes in the optical fiber communication network need to realize data exchange through the "store-and-forward" mechanism. During the data exchange process, the existing switching node will count forwarded data packets to form a flow table for implementing functions such as firewall and network address translation. Software Defined Network (Software Defined Network, SDN) opens and shares the flow tables of its switching nodes through different equipment vendors, and programmatically controls the flow tables in different switching nodes through unified standards and open protocols, and then controls the switching nodes according to the flow table , to process various data streams accordingly. The essence of software-defined ...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04J14/02H04L12/721H04L12/931H04L12/933
CPCH04J14/0267H04L45/62H04L49/103H04L49/357H04Q11/0005H04J14/0257
Inventor 孙小菡郑宇
Owner 南京曦光信息科技研究院有限公司
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