Patent ID: 7020076
Filing Date: 2006-03-28
Classification: H04L

Abstract:
1. A system, comprising: a plurality of node devices, each operable to transmit or receive information; and a first set of composite communication links to connect said node devices to form a communication network, each composite communication link having at least a communication channel of a first type and a communication channel of a different, second type, communication channels of said first type connected to said nodes to form a first network in a first topology and communication channels of said second type connected to said nodes to form a second network in a second, different topology, wherein at least one of said first and said second networks is not partitioned when a single node failure occurs wherein a node having a node position in said first network has a different node position in said second network, wherein each of said first and said second topologies is a tree topology, and wherein a branch node in said first network is not a branch node in said second network.