该文分析了传统数据中心的不足以及新型数据中心具备的新特点,借鉴已有数据中心结构,依据著名的科赫曲线(Koch curve),提出了新型数据中心网络结构一雪花结构.该结构充分考虑了数据中心的可扩展性,在保证交换机与服务器较低数量比例(0.125~0.333)的前提下,可以在较短的平均路径内实现节点间路由机制,具有较小的网络开销.
The paper analyses the deficiency of traditional data center and new characteristics of current data center. Basing on the famous Koch curve, it proposes a new-type network strueture of data center, called Snowflake. It takes scalability into full consideration. On the premise of low proportion of switches and servers, it can efficiently achieve routing mechanisms in shorter mean path lengths with less network cost.