摘要:
A communication system has: a monitoring unit 201 monitoring power consumption in a switching unit 20 forwarding a communication message; a power consumption data transmission unit 202 transmitting a data indicating the power consumption monitored by the monitoring unit 201; a control signal receiving unit 203 receiving a control signal; a control unit 204 controlling a data transfer rate on the basis of content of control included in the control signal received by the control signal receiving unit 203; a power consumption data receiving unit 301 receiving the data indicating the power consumption transmitted by the power consumption data transmission unit 202; a control determination unit 302 determining, on the basis of the data received by the power consumption data receiving unit 301, target of control and the content of control regarding power consumption; and a control signal transmission unit 303 transmitting the control signal including the target of control and the content of control determined by the control determination unit 302.
摘要:
Fault tolerance is improved, a functional limitation at the time of start-up of an I/O system is avoided, and a start-up time is shortened. A downstream PCI Express bridge sets a PCI Express device connected to the downstream PCI Express bridge itself, among a plurality of single root-compatible PCI Express devices shared by a plurality of root complexes connected to a plurality of upstream PCI Express bridges that exchange data with the downstream PC Express bridge itself through a network, controls and monitors a state of a physical link with the PCI Express device connected to the downstream PCI Express bridge itself, and performs monitoring and notification of an error of the PCI Express device connected to the downstream PCI Express bridge itself.
摘要:
A local computer (20) and a remote I/O device (30) are interconnected on a network (40) through an upstream side bridge (21) and a downstream side bridge (31). The upstream side bridge (21) and the downstream side bridge (31) each include a register (216, 316) for referring to or writing a signal aside from a primary data stream that runs through the network (40) from both sides, and a mechanism (217, 317) for transmitting and receiving the signal aside from the primary data stream inband when referring to or writing the signal in the register (216, 316).
摘要:
A detecting unit detects a connection of an external device to a connection port and stores the connection in a bridge state storage unit. This setting is autonomously completed by a device before an initial configuration is started by a host. A data transfer unit receives initial configuration data of a link-connection bridge from the host. Data is transferred to the linked-uplink-connection bridge with reference to the bridge state storage unit, data to a bridge which is not linked up is wasted, or an Unsupported Request is returned to the host to represent the absence of the link-connection bridge.
摘要:
Provided are a first PCI-PCI bridge that handles Multi Root to connect to a plurality of root complexes; a second PCI-PCI bridge that connects to an endpoint; a virtual PCI Express switch that performs a switching process between the first and second PCI-PCI bridges; and a network control device that transfers data that is to be processed in the virtual PCI Express switch to an external switch through a network without passing through a PCI-PCI bridge.
摘要:
A CPU 80 controls data transfer from a first device to a second device in a kernel mode. A main memory 90 stores data to be transferred from the first device to the second device. The CPU 80 has: a first device control means 81 which controls the first device; a second device control means which controls the second device; and a data transfer control means 83 which makes a read instruction which instructs the first device control means 81 to store data read from the first device in the main memory 3, and makes a write instruction which instructs the second device control means 82 to write the data stored in the main memory 3 in the second device.
摘要:
A switch (304) includes a plurality of bridges (3041, 3042, 3043, 3044, 3045) and a switch forwarding mechanism (20). Each of the bridges transmits and receives a TLP frame complying with PCI express to and from a device connected to each of the bridges. The switch forwarding mechanism includes a plurality of ports (1, 2, 3, 4, 5) to which the bridges are connected, respectively, selects an output port in dependence on a combination of destination information on the TLP frame input from one of the plurality of ports and the port which input the TLP frame, and outputs the TLP frame from the selected output port.
摘要:
A communication equipment notifies a server equipment of a communication port to which a communication cable is connected. If another communication port as a connection partner of the notified communication port is not yet connected to the communication cable, the server equipment transmits a first notification instruction to another communication equipment having the said another communication port. The said another communication equipment indicates, in a viewable manner, a communication port corresponding to the first notification instruction as a communication port to which the communication cable is required to be connected.
摘要:
Provided is an MRA (multi-root aware) PCI express switch accommodating a plurality of root complexes. The MRA PCI express switch includes: a setting register storing necessary information to set a PCI tree based on a switch connection topology and a physical connection state; and a virtual switch bridge controller storing necessary information to establish a virtual PCI tree, irrespective of a status of the setting register. The root complexes can be booted based on the information in the virtual switch bridge controller.
摘要:
A node that configures a spanning tree over a network to which a plurality of nodes are connected generates a tree after a cost change using another LAN while continuing to operate the tree that existed before the change, and switches the tree that is used for forwarding after the new tree has been stable.