US Patent 7366187 Linking autonomous systems with dual premise routing domains

The present invention is directed to a system for linking a first autonomous network system to at least one second autonomous network system. The first autonomous network system having a first private IP address space and the at least one second autonomous network system having at least one second private IP address space. The first private IP address space and the at least one second private IP address space are at least partially overlapping. The system includes a first routing domain including the first autonomous network system and at least one second routing domain including the at least one second autonomous network system. A geographically diverse linking autonomous system couples the first autonomous network system and the at least one second autonomous network system. The linking autonomous system includes a first routing domain management system configured to manage the first routing domain, and at least one second routing domain management system configured to manage the at least one second routing domain.