DATA CENTRE NETWORK (DCN), METHOD FOR TRANSMITTING TRAFFIC IN DCN, AND SWITCH

摘要

Provided are a data centre network (DCN) and a method for transmitting traffic in a DCN. The DCN comprises: N first-level subnets, wherein each of the first-level subnets comprises N second-level subnets; each Kth-level subnet comprises N (K+1)th-level subnets, and each (K-1)th-level subnet comprises at least one switch; the DCN is a K-level network; each switch in the DCN is provided with K subnet identifications, and the K subnet identifications are respectively used for indicating each level of subnet of the switch and the number thereof in a (K-1)th-level subnet that the switch belongs to; the switch is interconnected to each switch, respectively, in K direct-connection switch groups; each of the direct-connection switch groups comprises N-1 switches; and the N-1 switches comprised in an ith direct-connection switch group in the K direct-connection switch groups are inconsistent with ith-level subnet identifications of the switches, and are consistent with the other K-1 subnet identifications of the switches.