Patent ID: 10326685

Abstract:
Technologies are provided for creating virtual routing tables in routers in a multi-tier network. One or more routers in the network are configured to block other routers in a lower tier of the network from receiving routing updates from one another. By blocking the routing updates, the routers in the higher tier of the network cause the routers in the lower tier of the network to create different virtual routing tables that do not include other routers the lower tier of the network. In such a configuration, routers in the lower tier of the network can be connected to routers in the higher tier of the network with partially overlapping uplink connections without a loss of bandwidth utilization. Since the routers in the lower tier of the network are unaware of the partially overlapping uplink connections, the routers in the lower tier of the network can distribute data transmissions to one another evenly across all their uplink connections to the routers in the higher tier of the network, instead of using the overlapping uplink connections exclusively.