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A flexible data transmission system based on intelligent collaborative network

A technology of data transmission system and intelligent collaborative network, applied in the field of computer network, can solve the problems of no unified standard for traffic business division, network congestion, multi-task queue waiting at the same time, etc., to achieve link utilization, dynamic selection implementation, The effect of avoiding network congestion

Active Publication Date: 2020-07-17
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (1) There are many different types of services in the network, and different network traffic has very different requirements for QoS. Therefore, there is no unified standard for the division of traffic services, which can easily cause inaccurate division and affect data transmission.
[0008] (2) For different types of business traffic, the network traffic may have the same transmission requirements for QoS. At this time, during data transmission, there will be situations such as multi-task queues waiting at the same time, network congestion, etc.
[0013] (2) Although the link load balancing in the SDN network has been realized to a certain extent, when the links in the network are all in the working state, the link with a relatively small current link utilization rate is likely to cause problems such as data queuing and waiting, thus causing network congestion
[0014] (3) This technology is suitable for networks with simple network topology and more link redundancy, but for large-scale networks with complex topology, it is slightly rigid and difficult to implement

Method used

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  • A flexible data transmission system based on intelligent collaborative network
  • A flexible data transmission system based on intelligent collaborative network
  • A flexible data transmission system based on intelligent collaborative network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0144] (1) Embodiment 1: When there is a service in the network

[0145] Assume that client C1 initiates a service request to server S1, and S1 provides services to client C1 through forwarding groups. Use wireshark to capture and analyze service data packets on ports N7-eth3, N7-eth4, and N7-eth5 respectively. It turns out that packets destined for C1 are captured only at N7-eth5. N7-eth5 is connected to the N4-eth2 interface, and there is only one single link between the routing component N4 and the client C1 to transmit data, so the route adapted by the resource manager for the (S1,C1) service is [N7,N4,N2, N1].

Embodiment 2

[0146] (2) Embodiment 2: when the service path fails

[0147] When the (S1, C1) service is in the transmission process, if the link fails, it is necessary to restore the link as soon as possible or find a backup path in the shortest time to ensure the stability and reliability of service transmission. In this flexible transmission method, because the resource manager calculates the K shortest paths in the route adaptation stage before the service transmission, in addition to sending the optimal path to the routing component, the remaining K-1 edges are stored in In paths, when the link is disconnected, the resource manager will send the optimal path among the K-1 paths to the routing component without needing to calculate the path through state awareness. On the one hand, it reduces the burden on the resource manager. On the other hand, it also minimizes the impact of failures on services.

[0148] Through the functional test in the previous step, it is known that the transmi...

Embodiment 3

[0149] (3) Embodiment three: when there are two kinds of services in the network

[0150]If the (S1, C1) service already exists in the network, at this time C2 also initiates a service request to the server S2, and S2 provides services to C2 by adapting the network group. Because the [N7, N4, N2, N1] path is already occupied by (S1, C1), the resource manager will calculate the optimal path according to the current network status. By capturing packets on the N7-eth3, N7-eth4, and N7-eth5 ports, the data packets sent to C2 are captured on the N7-eth3 port. Because there is only one link between the routing components N7 and N6, it can be determined that S2 sent The service data to C2 is transmitted through the path [N7, N6, N3, N1], and the resource manager adapts the path for the (S2, C2) service to [N7, N6, N3, N1].

[0151] (4) Embodiment 4: When there are three kinds of services in the network

[0152] Two services (S1, C1) and (S2, C2) already exist in the network. At thi...

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Abstract

The flexible data transmission system based on the intelligent collaborative network according to the present invention includes a resource management unit and a network component unit. The resource management unit includes a network state perception module, a network state measurement module and a flexible transmission module. The flexible transmission module is based on the network state perception module. The obtained network topology status and network resource update status, as well as the maximum available bandwidth and delay information of the network status link measured by the network status measurement module, calculate the K shortest transmission paths, and determine the optimal transmission path. Under the centralized and unified control of the intelligent collaborative network control plane, the present invention perceives the network status and network component behavior, and combines parameters such as routing hops, remaining bandwidth, and link delay to determine the optimal transmission path to meet the dynamics of service resources. Adaptation and transmission, improve data transmission reliability, network throughput, resource utilization, link load balancing, etc. to make up for the shortcomings of the shortest route method.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a flexible data transmission system based on an intelligent collaborative network. Background technique [0002] As the scale of the Internet continues to expand, the number of users and service demands are increasing dramatically. The traditional Internet system based on TCP / IP has gradually exposed many serious drawbacks, such as poor security, insufficient mobility support, poor scalability, and high energy consumption. In the existing network system, the control layer and the data layer of the network routing device are closely coupled. Among them, the control layer is responsible for the calculation and maintenance of the routing table items in the routing device, while the data layer follows the instructions issued by the control layer, in the specified access Complete data forwarding between ports. The tight coupling between the control layer and the data layer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/721H04L12/729H04L12/803H04L12/26H04L45/125
CPCH04L43/0852H04L43/0894H04L45/123H04L45/125H04L47/125
Inventor 冯博昊权伟张宏科赵允刘刚李光磊于成晓
Owner BEIJING JIAOTONG UNIV
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