Reliability-Based Active/Standby Controller Deployment Method in Software-Defined Data Center
A main controller and data center technology, applied in the field of computer networks, can solve the performance bottleneck of single controller deployment mode, cannot handle single point failure and other problems, and achieve the effect of reducing deployment cost, ensuring reliability, and improving reliability.
Active Publication Date: 2022-05-03
重庆力合科技创新中心有限公司
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Problems solved by technology
[0003] The early implementation of SDN relied on a single controller. However, with the continuous increase in network requirements, the single-controller deployment mode faces a series of problems such as performance bottlenecks and inability to handle single-point failures.
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[0030] The technical solutions in the embodiments of the present invention will be described clearly and in detail below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.
[0031] The technical scheme that the present invention solves the problems of the technologies described above is:
[0032] like figure 1 As shown, the reliability-based master-standby controller deployment method under the software-defined data center of the present invention comprises the following steps:
[0033] Step 1: Input network topology G(V,E); current set of master controllers Mapping collection of main controller and switch for the main controller The set of switches in its control domain is Current standby controller set C B ;Set of mappings between standby controllers and switches for backup controller The set of switches in its control domain is Pending exchange set S tmp ; ...
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The present invention claims to protect a method for deploying active and standby controllers based on reliability in a software-defined data center. Firstly, according to the given network topology, the number and deployment position of the master controller in the network are determined according to the greedy strategy; secondly, according to the position of the selected master controller, the backup controller with the best reliability is selected for each switch in the network . When selecting the standby controller, a reliability factor is defined to ensure the reliability of the control path by using the correlation and difference between the active and standby control paths. This method regards network deployment cost and network reliability as optimization objectives, and maximizes the reliability of the entire network while ensuring that the number of controllers deployed in the network is as small as possible.
Description
technical field [0001] The invention belongs to the field of computer networks, and aims at the problem of deploying controllers in a software-defined data center, and proposes a method for deploying active and standby controllers based on reliability. Background technique [0002] With the rapid development of various emerging network services and applications, such as 5G, Internet of Things, high-definition multimedia streaming, cloud computing, big data, etc., traditional Internet and telecom data centers are facing great challenges. Due to the increasing demand for these network-based online services, most of this storage and data exchange traffic flows within the data center, resulting in an explosive growth of traffic within the data center network. According to relevant forecasts, by 2020, 90% of the growth of the IT industry will be driven by the third platform, which is built on cloud services, big data analysis, mobile and social technologies. However, as an impor...
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IPC IPC(8): H04L41/12H04L41/0668H04L49/55
CPCH04L41/12H04L41/0668H04L49/55
Inventor 樊自甫姚杰杨先辉王正强万晓榆
Owner 重庆力合科技创新中心有限公司