阅读说明：本技术 一种基于棱柱体结构的数据中心网络 (A kind of data center network based on prism structure ) 是由 卢凯 黄海平 蒋凌云 韩志杰 陈雨昊 李鹏 王汝传 刘茜萍 于 2019-06-25 设计创作，主要内容包括：一种基于棱柱体结构的数据中心网络,由八个交换机构成一个三棱柱体的单元网络结构,其中包括六个五接口的交换机与两个四接口的交换机。首先顶面和底面都是由三个两两相连的五接口的交换机组成一个边长为L的等边三角形,分别在两个等边三角形的中心位置加入一个四接口的交换机,并与其他三个交换机两两相连,上下底面相对应的交换机两两相连,然后将底面三角形顶点处的三个交换机依次与右上角的交换机相连,构成了一个基本的网络拓扑单元。除三角形中心的交换机外,每个交换机都与服务器相连。按照此方式进行扩展,可以构成一个底面边长为NL,h个单元层的垂直连接的数据中心网络,h和N是大于等于1的整数。(A kind of data center network based on prism structure, by eight exchange mechanisms at the unit networks structure of a tri-prismoid, the interchanger of interchanger and two four interfaces including six five interfaces.Top and bottom are all the equilateral triangles that the group of switches for five interfaces being connected two-by-two by three is L at a side length first, the interchanger of four interfaces is added in the center of two equilateral triangles respectively, and it is connected two-by-two with other three interchangers, the corresponding interchanger of upper bottom surface is connected two-by-two, then three interchangers of base triangle apex are successively connected with the interchanger in the upper right corner, constitute a basic network topology unit.In addition to the interchanger of triangle center, each interchanger is connected with server.It is extended in this manner, may be constructed a bottom surface side length is NL, and the data center network connected vertically of h elementary layer, h and N are greater than the integer equal to 1.)

1. a kind of data center network based on prism structure, it is characterised in that:

The prism structure, specially by eight exchange mechanisms at the unit networks structure of a tri-prismoid, including The interchanger of six five interfaces and the interchanger of two four interfaces；

It at a side length is L that the top and bottom of the tri-prismoid, which are all by the group of switches of three connected five interfaces two-by-two, Equilateral triangle, be added the interchanger of four interfaces in the center of two equilateral triangle planes respectively, and and its He is connected at three interchangers two-by-two；The corresponding interchanger in each vertex of upper bottom surface is connected two-by-two；

Then three interchangers of base triangle apex are successively connected with the interchanger on the top surface in its upper right corner, are constituted One basic network topology unit；

It is extended in this manner, may be constructed a bottom surface side length is NL, the data center connected vertically of h elementary layer Network, h and N are greater than the integer equal to 1.

2. a kind of data center network topology structure based on prism structure according to claim 1, feature exist In: in addition to two interchangers of the triangle center of upper and lower top and bottom, each interchanger is connected with server.

3. a kind of data center network topology structure based on prism structure according to claim 1, feature exist In: the total quantity of interchanger in the structure are as follows:

。

4. a kind of data center network topology structure based on prism structure according to claim 1, feature exist In: four interface switchboard quantity in the structure are as follows:

2N²(N≥1)。

5. a kind of data center network topology structure based on prism structure according to claim 1, feature exist In: five interface switchboard quantity in the structure are as follows:

6+2(h-1)N²(N≥1)。

6. a kind of data center network topology structure based on prism structure according to claim 1, feature exist In: seven interface switchboard quantity in the structure are as follows:

6(h-1)(h≥1)。

7. a kind of data center network topology structure based on prism structure according to claim 1, feature exist In: ten interface switchboard quantity in the structure are as follows:

6(N-1)(N≥1)。

8. a kind of data center network topology structure based on prism structure according to claim 1, feature exist In: 13 interface switchboard quantity in the structure are as follows:

6(h-1)(N-1)(N≥1,h≥1)。

9. a kind of data center network topology structure based on prism structure according to claim 1, feature exist In: 16 interface switchboard quantity in the structure are as follows:

。

10. a kind of data center network topology structure based on prism structure according to claim 1, feature exist In: 20 interface switchboard quantity in the structure are as follows:

。

Technical field

The present invention relates to data center network topology structures, and in particular to a kind of data center's net based on prism structure Network.

Background technique

With the fast development of cloud computing and computer intensive type network technology, currently, the whole world has come into one It in the epoch of high speed information development, is shown according to the data that International Data Corporation (IDC) issues: cut-off 2018, the service of data center, Tencent Device scale is up to more than 50 ten thousand, and Microsoft has 2,000,000, and there is the server close to 3,000,000 in the data center of Amazon.Number A large amount of data will be generated by measuring when so huge server works at the same time, and the data center network as its infrastructure It has become a hot topic of research again.How these servers to be connected by connection equipment and high-speed link, it is made to constitute one A efficient data center network of performance, provides the service of high-effect high-quality for top level computer system, this is technically absolute It is a great challenge.

Traditional data center network is that server is connected to one by interchanger, core switch and core router It rises, constitutes the data center network of a tree.But requirement of this structure to core switch and core routing performance It is very high, it involves great expense, and the single point failure in network easily occur, causes the bottleneck of network flow.As number of servers is in Exponential increase, this structure, can be higher and higher to the performance requirement of core switch and core router in continuous extension, and Cost can be more and more expensive.This structure is difficult to meet at present to data center network height aggregation bandwidth, high-throughput and Gao Rong The performance requirement of mistake.Later, many scholars had made improvement to conventional tree-type, proposed Fat-tree, VL2 these with exchange Machine is more tree type data central site network structures of core.Although these structures solve conventional tree-type structure to a certain extent Single point failure problem, but there are still core switch and core router cost is expensive, poor fault tolerance and expansibility difference etc. lack Point.

Summary of the invention

The present invention provides a kind of data center network based on prism structure, reach expansion is easy, fault-tolerance is high, at The effect that this is low, transmission rate is high, load equilibrium is strong.

A kind of data center network based on prism structure, the prism structure, specially by eight exchange mechanisms At the unit networks structure of a tri-prismoid, the interchanger of interchanger and two four interfaces including six five interfaces；

The top and bottom of the tri-prismoid are all the group of switches for five interfaces being connected two-by-two by three into a side The interchanger of four interfaces is added in the equilateral triangle of a length of L in the center of two equilateral triangle planes respectively, and It is connected two-by-two with other three interchangers；The corresponding interchanger in each vertex of upper bottom surface is connected two-by-two；

Then three interchangers of base triangle apex are successively connected with the interchanger on the top surface in its upper right corner, Constitute a basic network topology unit；

It is extended in this manner, may be constructed a bottom surface side length is NL, the data connected vertically of h elementary layer Central site network, h and N are greater than the integer equal to 1.

Further, in addition to two interchangers of the triangle center of upper and lower top and bottom, each interchanger and clothes Business device is connected.

Further, in the structure interchanger total quantity are as follows:

Further, four interface switchboard quantity in the structure are as follows:

2N²(N≥1)

Further, five interface switchboard quantity in the structure are as follows:

6+2(h-1)N²(N≥1)

Further, seven interface switchboard quantity in the structure are as follows:

6(h-1)(h≥1)

Further, ten interface switchboard quantity in the structure are as follows:

6(N-1)(N≥1)

Further, 13 interface switchboard quantity in the structure are as follows:

6(h-1)(N-1)(N≥1,h≥1)

Further, 16 interface switchboard quantity in the structure are as follows:

Further, 20 interface switchboard quantity in the structure are as follows:

The beneficial effects of the present invention are:

(1) the data center network structure that the present invention constructs has abandoned the core switch in tree and core routing Device is reduced costs using commodity level router, joined redundant circuit, enhances the fault-tolerance of network.

(2) the data center network structure that the present invention constructs adequately and reasonably utilizes Internet resources, makes network performance more Reliably, more efficiently.

(3) the data center network structure that the present invention constructs haves no need to change the structure of script when being extended, and It can carry out horizontal and vertical two-way extension, hence it is evident that improve scalability.

Detailed description of the invention

Fig. 1 is the cell data central site network structure in the embodiment of the present invention.

Fig. 2 is the Longitudinal Extension figure of the data center network structure in the embodiment of the present invention.

Fig. 3 is the figure extending transversely of the data center network structure in the embodiment of the present invention.

Fig. 4 is the top view extending transversely of the data center network structure in the embodiment of the present invention.

Fig. 5 is existing Fat-tree data center network structure.

Fig. 6 is the comparison table of structure of the invention and corresponding fat tree construction.

Specific embodiment

Technical solution of the present invention is described in further detail with reference to the accompanying drawings of the specification.

A kind of data center network based on prism structure, the prism structure, specially by eight exchange mechanisms At the unit networks structure of a tri-prismoid, the interchanger of interchanger and two four interfaces including six five interfaces.

The top and bottom of the tri-prismoid are all the group of switches for five interfaces being connected two-by-two by three into a side The interchanger of four interfaces is added in the equilateral triangle of a length of L in the center of two equilateral triangle planes respectively, and It is connected two-by-two with other three interchangers；The corresponding interchanger in each vertex of upper bottom surface is connected two-by-two.

Then three interchangers of base triangle apex are successively connected with the interchanger on the top surface in its upper right corner, Constitute a basic network topology unit.

It is extended in this manner, may be constructed a bottom surface side length is NL, the data connected vertically of h elementary layer Central site network, h and N are greater than the integer equal to 1.

In addition to two interchangers of the triangle center of upper and lower top and bottom, each interchanger is connected with server.

The total quantity of interchanger in the structure are as follows:

Four interface switchboard quantity in the structure are as follows:

2N²(N≥1)

Five interface switchboard quantity in the structure are as follows:

6+2(h-1)N²(N≥1)

Seven interface switchboard quantity in the structure are as follows:

6(h-1)(h≥1)

Ten interface switchboard quantity in the structure are as follows:

6(N-1)(N≥1)

13 interface switchboard quantity in the structure are as follows:

6(h-1)(N-1)(N≥1,h≥1)

16 interface switchboard quantity in the structure are as follows:

20 interface switchboard quantity in the structure are as follows:

In order to be described further to the data center network, below we by the basic cell structure based on the invention into Row is horizontally and vertically scalable.

Longitudinal Extension: the data center network of the double elementary layers of the single-stage that building bottom surface side length is L, model are as shown in Figure 2: Formed by the data center network perpendicular interconnection of two single-stage single layers, connection type is shown in dotted line, two units up and down The corresponding interchanger in bottom surface interconnects, and three interchangers at upper bottom surface triangular apex are successively connected with the interchanger in the upper right corner.

Extending transversely: the data center network for the secondary unit layer that building bottom surface side length is 2L, model are as shown in Figure 3: Basic cell structure based on the invention is extending transversely, removes duplicate side and telephone net node, constructs a bottom surface side length and is The prism structure of 2L, top view are as shown in Figure 4.

Either transverse direction or Longitudinal Extension, each interchanger in the structure are logically connections of equal value, and Server can be connected according to demand.

Fat-Tree topological structure is proposed on the basis of improving traditional tree structure performance by Fares of MIT et al. , belong to switch-only type topology.Entire topological network is divided into three levels: be respectively from top to bottom marginal layer (edge), Convergence layer (aggregate) and core layer (core), wherein convergence layer switch and marginal layer exchange mechanism are at a pod, tool Body is as shown in Figure 5.

In order to illustrate the beneficial effect of structure of the invention, below our bilayers that will be constructed using fat tree and the present invention it is basic Unit compares, and mainly compares and analyzes in terms of interchanger quantity and number of links two to two kinds of structures, specific to join Number is as shown in fig. 6, interchanger of the interchanger quantity of data center network of the invention than fat tree construction as can be seen from the table Quantity is four few, and number of links of the invention is than fat tree construction only more one.It is higher that the core layer of fat tree contains cost Core switch limits extension scale, and the present invention uses cheap exchange of commodities machine completely, and redundant link is added, Enhance the fault-tolerance of network, very friendly support one-to-all and all-to-all network communication mode.Therefore, of the invention Structure the data center network of a superior performance is realized with less and lower price the network equipment, take full advantage of Internet resources.

The foregoing is merely better embodiment of the invention, protection scope of the present invention is not with above embodiment Limit, as long as those of ordinary skill in the art's equivalent modification or variation made by disclosure according to the present invention, should all be included in power In the protection scope recorded in sharp claim.