Method for standardized data surface dynamic reconstruction for multiple services

A technology of dynamic reconstruction and data plane, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of inability to customize the forwarding strategy of the business, poor manageability and flexibility, and the firewall is not updated in time, and achieve network The effect of real-time adjustment of resources, strong manageability and flexibility, and good security

Active Publication Date: 2014-04-16
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

[0006] 1. Reconfiguration depends on specific protocols (such as OSPF reconstruction, BGP reconstruction), poor manageability and flexibility
[0007] 2. The forwarding table of the traditional network is calculated by the routing algorithm stipulated in the protocol, and cannot be configured by the network service, that is, the service cannot customi

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  • Method for standardized data surface dynamic reconstruction for multiple services
  • Method for standardized data surface dynamic reconstruction for multiple services
  • Method for standardized data surface dynamic reconstruction for multiple services

Examples

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[0063] Let’s take the operator’s change of the SDN node connection relationship as an example, combining image 3 , Figure 4 The present invention is described in detail.

[0064] The method for dynamic reconstruction of standardized data plane for multiple services of the present invention includes the following steps:

[0065] 1. OSS deployment reconstruction:

[0066] 1.1. The operator will modify the existing SDN service network topology to the desired new topology (for example, change image 3 The topology shown is modified to Figure 4 The topology shown), the process is as follows:

[0067] 1.1.1. Through the user interaction interface provided by OSS, the operator observes the existing SDN service network topology, including three domains: domain A, domain B, and domain C. There are 15 switches in the three domains connected to each other (for example, image 3 );

[0068] 1.1.2. Operators use mouse operation methods such as clicking and dragging or keyboard operation methods...

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Abstract

The invention discloses a method for standardized data surface dynamic reconstruction for multiple services. In a software definition network with a plurality of controllers, a topological structure of the network can be dynamically configured through the method, wherein the topological structure comprises parameters of the number of nodes, the link connection relationship, the link weight with the bandwidth or the delay serving as a measurement indicator and the like so that the network structure can be flexibly changed and network resources can be adjusted in real time; when the network is blocked or the nodes are collapsed and a link breaks down, an operator can actively intervene so that load can be balanced and the link can be switched. Compared with the prior art, a flow table can be configured in real time through the method according to the requirement, a specific protocol is not depended, and the manageability and the flexibility are higher. A unified reconstruction interface is applied to the method for standardized reconstruction so that different transmitting strategies can be adopted by a bottom-layer network according to the specific services, and the services can be borne on the upper layer. The method for standardized data surface dynamic reconstruction for the multiple services is good in safety and capable of avoiding the potential safety hazards caused by reconstruction.

Description

technical field [0001] The invention relates to the technical field of software-defined networks, in particular to a method for dynamically reconfiguring a standardized data plane for multiple services. Background technique [0002] In the real Internet, network operators often need to adjust the topology of the network for various reasons, including parameters such as the number of nodes, link connection relationships, and link weights measured by bandwidth or delay. After topology changes, switches deployed in the network need to update their forwarding tables to adapt to these changes, otherwise packets will not be forwarded correctly. Network topology changes trigger many switches to update forwarding tables, which is called data plane reconfiguration of the network. [0003] When the intra-domain topology of a traditional network changes, its data plane will be reconfigured according to a link state protocol such as OSPF. The process mainly includes: all routers use t...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L29/06
Inventor 吴春明潘戈周伯阳滕超王滨高文
Owner ZHEJIANG UNIV
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