Systems and methods for network routing in a multiple backbone network architecture

摘要

A network architecture comprising a backbone node including a plurality of independent routers or switches connected in a matrix, wherein the matrix includes a plurality of stages (104a, 104b, 104c) of routers or switches, to form a node having a node switching capacity that is greater than the node switching capacity of the individual routers or switches. The routers or switches (102) are connected in an N*M IP-based CLOS matrix, wherein N>1 is the number of stages in the matrix and M>1 is the number of routers or switches in each stage. Traffic is directed among the routers or switches using IP or Ethernet routing protocols, and wherein traffic is load balanced using one or more load balancing techniques selected from a group consisting of equal cost load balancing, traffic engineering or flow-based load balancing.