先义了一个常数度代数图 Gcoset，在此基础上构造了 8 度正则度、对称性良好的数据中心网络的虚拟化拓扑结构 GDCN; 然后详细描述了 GDCN 的静态模型以及 Gcoset的路由算法，并给出了 GDCN 结构以及一个具体实现; 最后将 GDCN 与其他数据中心网络模型进行了对比． 结果表明: GDCN 的直径仅为 O( logN) ; Gcoset 的路由算法较为简单;GDCN 结构简单、通信性能较高，可扩展性良好，且具有良好的路由容错性．

Firstly,Gcoset,an algebraic graph with constant degree,is defined.Secondly,on the basis of Gcoset,a virtualized topology structure named GDCN,which is of eight-degree regularity and symmetry for data center net- work,is proposed.Then,the static model of GDCN and the routing algorithm of GCoset are both described in de- tail,and a concrete implementation of GDCN is presented.Finally,a comparison between GDCN and other data center network models is made.The results show that GDCD is of a network diameter of only O ( logN) and needs relatively simple routing algorithm,and that it possesses simple structure,high communication performance,good scalability and excellent fault tolerance.