Patent application number | Description | Published |
20120307829 | COMMUNICATION CONTROL METHOD AND RELAY DEVICE - A communication control method for controlling communication between a first node and a second node via a relay device, the method includes transmitting a control packet from the first node to the second node before transmitting a first packet which is a higher priority than another packet to be relayed, stopping a packet from being output from a packet storage device for the another packet by the relay device, for a period indicated by the control packet, the packet storage device being included in one of a plurality of output ports of the relay device from which the first packet is to be output, and transmitting the first packet from the first node to the second node or from the second node to the first node during the period. | 12-06-2012 |
20130107890 | BUFFER MANAGEMENT OF RELAY DEVICE | 05-02-2013 |
20130242723 | DATA PROCESSING APPARATUS, DATA TRANSCEIVER APPARATUS, AND METHOD FOR CONTROLLING DATA TRANSMISSION AND RECEPTION - A relay device is capable of associating a plurality of network-side ports to a server-side port connected to an adapter | 09-19-2013 |
20140047125 | APPARATUS AND METHOD FOR CONTROLLING VIRTUAL SWITCHES - An apparatus includes a controller, a converter, and table information storing physical identification information identifying a physical port of first and second physical switches in association with virtual identification information identifying a virtual port of a virtual switch. For each virtual switch, the controller outputs control information determined based on a predetermined protocol and manages the received control information. The converter, based on the table information, converts the physical identification information added to the received control information and identifying a physical port via which the first physical switch has received the control information, into the associated virtual identification information, converts the virtual identification information added to the control information outputted from the controller and identifying a virtual port via which the control information is to be transmitted, into the associated physical identification information, and relays the control information between the controller and the second physical switch. | 02-13-2014 |
20140169379 | RELAY APPARATUS AND CONTROL METHOD THEREOF - A disclosed relay apparatus includes: a generator that generates, upon receipt of a first packet that includes a first identifier of a virtual machine that is newly executed in an information processing apparatus connected to the relay apparatus from the information processing apparatus, a second packet that includes a second identifier of the virtual machine, which is different from the first identifier, and requests to set relay for the virtual machine; and a processing unit that sets the relay for the virtual machine by using the second identifier of the virtual machine, which is included in the second packet generated by the generator or received from the information processing apparatus. | 06-19-2014 |
20150049638 | NETWORK SYSTEM, CONTROL METHOD THEREOF, NETWORK CONTROL APPARATUS, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM HAVING STORED THEREIN CONTROL PROGRAM THEREOF - A network system includes a transmitting/receiving apparatus, a plurality of switches, and a network control apparatus. The switch includes a first packet transmission control unit and a second packet transmission control unit. The network system includes a first packet transmission control area according to the first packet transmission control unit, and a second packet transmission control area according to the second packet transmission control unit. A switch in the first packet transmission control area includes a first storage unit which stores a plurality of pieces of first rule information informed from the network control apparatus, applies a mask to a predetermined position of header information of an input packet according to the number of the plurality of pieces of first rule information, and controls the input packet according to the first rule information selected from the first storage unit based on the header information after masking. | 02-19-2015 |
20150124591 | INFORMATION PROCESSING SYSTEM, SWITCHING DEVICE, AND METHOD FOR CONTROLLING INFORMATION PROCESSING SYSTEM - An information processing system includes a switching device group including a plurality of switching devices that include a switching device as a root node and switching devices as leaf nodes and are connected in a tree topology. The switching device includes: a controller that, when a failure that occurs in a communication path connected to the root node side of the switching device is detected, writes identification information indicating the communication path from which the failure is detected to a flow table which stores the identification information and output destination port information so as to be associated with each other, thereby switching a plurality of communication paths; and a notification unit that, when a failure that occurs in a communication path connected to the leaf node side of the switching device is detected, notifies another switching device connected to the switching device of a position where the failure occurs. | 05-07-2015 |
20150222509 | NETWORK SWITCH, NETWORK SYSTEM, AND NETWORK CONTROL METHOD - A network switch, includes: a port configured to receive a packet from one of a first information processing device and a second information processing device: a processor configured to process the packet, wherein the processor performs operations of: extracting first information which is used for creating a request packet requesting a response of a first virtual machine executed by the first information processing device from the packet which is transmitted by the first virtual machine to a second virtual machine executed by the second information processing device; creating the request packet using the first information; transmitting the request packet to the first virtual machine; and determining an operation state of the first virtual machine based on if a response packet for the request packet is received from the first virtual machine. | 08-06-2015 |