Patent ID: 9213662
Filing Date: 2015-12-15
Classification: G06F

Abstract:
1. An I/O bus system comprising: upstream PCI express-network bridges connected with a plurality of hosts, respectively; a single downstream PCI express-network bridge connected an I/O resource; and a connection bridge arranged between said upstream PCI express-network bridges and said downstream PCI express-network bridge, and configured to swap a network address written in a network packet transmitted between each of said plurality of hosts and said I/O resource, wherein said connection bridge configures said I/O resource before said I/O resource is assigned to a host and before said I/O resource is used by the host by: a function assignment storage section configured to store data indicating said host to which one of functions of said I/O resource is assigned, wherein one of said upstream PCI express-network bridges connects said host with a network, wherein said downstream PCI express-network bridge connects said I/O resource with said network, wherein said connection bridge configures said I/O resource and said downstream PCI express-network bridge previously, and wherein said connection bridge: