Abstract: Techniques are provided for providing power onto multiple power distribution paths. Power controller devices receive power from a power source device and are coupled to first and second multiplexer units. The multiplexer units receive power from the power source devices via the power controller devices for first and second power distribution paths. A multiplexer control unit controls the multiplexer units to output power from the first power distribution path, the second power distribution path or both of the paths. Power subsystems are provided comprising first and second power transistor units. The first transistor unit receives power from the first multiplexer unit over the first path and the second transistor unit receives power from the second multiplexer unit over the second path. Ports are provided and are coupled to a powered device. The multiplexer control unit controls the multiplexer units to supply power to the respective ports according to the type of powered device detected at a port.

Abstract: Techniques are provided for providing power onto multiple power distribution paths. Power controller devices receive power from a power source device and are coupled to first and second multiplexer units. The multiplexer units receive power from the power source devices via the power controller devices for first and second power distribution paths. A multiplexer control unit controls the multiplexer units to output power from the first power distribution path, the second power distribution path or both of the paths. Power subsystems are provided comprising first and second power transistor units. The first transistor unit receives power from the first multiplexer unit over the first path and the second transistor unit receives power from the second multiplexer unit over the second path. Ports are provided and are coupled to a powered device. The multiplexer control unit controls the multiplexer units to supply power to the respective ports according to the type of powered device detected at a port.

Abstract: A network switch having a hybrid switch architecture, which is scalable to increase connectivity, buffering, and bandwidth by using multiple shared-memory switch fabrics and multiple crossbar switch fabrics. Each of the crossbar switch fabrics is coupled to each of the shared-memory switch fabrics. The shared-memory switch fabrics are configured to store and retrieve packets. The crossbar switch fabrics are configured to distribute and recollect packets to and from each of the shared-memory switch fabrics. The network switch having a hybrid switch architecture distributes packets from a crossbar switch fabric to the multiple shared-memory switch fabrics to share the distributed packets among the multiple shared-memory switch fabrics.

Abstract: A network switch having a hybrid switch architecture, which is scalable to increase connectivity, buffering, and bandwidth by using multiple shared-memory switch fabrics and multiple crossbar switch fabrics. Each of the crossbar switch fabrics is coupled to each of the shared-memory switch fabrics. The shared-memory switch fabrics are configured to store and retrieve packets. The crossbar switch fabrics are configured to distribute and re-collect packets to and from each of the shared-memory switch fabrics. The network switch having a hybrid switch architecture distributes packets from a crossbar switch fabric to the multiple shared-memory switch fabrics to share the distributed packets among the multiple shared-memory switch fabrics.