Abstract: An information processing system includes a switch device including a plurality of ports; and a control device configured to: specify a flow in which a transmission port is to be changed among the plurality of flows, and a transmission port after the change, by referring to load distribution information that associates flow information and port information with each other and statistics information indicating use rates of the ports, and transmit a changing instruction packet including information of the specified flow and the port after the change, for instructing the switch device to change the transmission port to the switch device, wherein the switch device is configured to update information in header information, which each of the series of packets included in the specified flow includes, so as to become information with which the port after the change is selected, when the changing instruction packet is received from the control device.

Abstract: A virtual network control program includes allowing a physical port of a destination server device, which is a destination of a virtual machine to be transferred by migration, to use a virtual network used by the virtual machine to be transferred when the physical port of the destination server device does not belong to the virtual network; determining whether or not the virtual network, which has been used by the virtual machine in a source server device, is used by another virtual machine running on the source server device when the virtual machine to be transferred has been transferred onto the destination server device; and inhibiting, when it is determined that the another virtual machine does not use the virtual network, that a physical port of the source server device uses the virtual network which has been used by the virtual machine to be transferred.

Abstract: A switch device includes a retaining unit, a switching processing unit, an identifying unit, and a rewriting unit. The retaining unit retains a flow table that maps each flow to a flag indicating whether the amount of transmitted data is equal to or more than a predetermined threshold. The switching processing unit stores a data packet received by a receiving buffer in one of a plurality of output queues provided for respective transmission ports based on the destination. The identifying unit identifies data packets included in a flow in which the amount of data is equal to or more than a predetermined threshold, from the data packets received by the receiving buffer. The rewriting unit refers to congestion notification information included in each of the identified data packets, and rewrites information indicating congestion to information indicating no congestion when the congestion notification information includes the information indicating congestion.

Abstract: A switch device includes a receiving buffer, a switching processing unit, a determining unit, a generating unit, and a transmitting unit. The receiving buffer receives a data packet from a communication device. The switching processing unit stores the data packet received by the receiving buffer to one of a plurality of output queues provided for respective transmission ports based on the destination. The determining unit determines whether the amount of data in the output queues is equal to or more than a predetermined threshold. If the determining unit determines that the amount of data in any one of the output queues is equal to or more than the predetermined threshold, the generating unit generates a notifying packet for notifying that congestion has occurred. The transmitting unit transmits the notifying packet generated by the generating unit to another switch device.

Abstract: 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.

Abstract: A switch which includes a plurality of ports, each being assigned to any of VLAN groups, and outputs a packet received at any of the ports, the switch include: recording means in which partition information and an address table are recorded, the partition information indicating which of extended VLAN groups into which the ports are further logically partitioned, and the address table containing an entry in which a destination address, an output port, a VLAN group, and an extended VLAN group are associated with each other; acquisition means for acquiring a source address and acquiring group information of a VLAN; identification means for identifying group information of an extended VLAN; and registration means for registering in the address table the source address acquired by the acquisition means as the destination address, the port, the group information of the VLAN, and group information of the extended VLAN group.

Abstract: 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.

Abstract: A data relay device includes a memory and a processor. The processor executes a data relay process includes determining that determining whether or not a storage device, which stores a virtual machine identifier of a virtual machine operated by the server connected with the computer and a port, stores the received virtual machine identifier in association with another port. The data relay process includes transferring that transfers the setting request of the port profile to a data relay device of an upper level higher than the data relay device in a communication path through which the virtual machine represented by the virtual machine identifier performs communication when it is determined that the received virtual machine identifier is not stored in association with the other port.

Abstract: 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.

Abstract: A management device allocates a first identifier that identifies, from among tenants included in a multi-tenant system, a tenant that uses virtual machines running on the multi-tenant system. The management device performs the following process, for each terminating device, from among tenants in the multi-tenant system, on virtual machines that are running on a second network in which terminating devices are installed. Specifically, the management device allocates a second identifier that identifies a tenant that uses virtual machines running on the multi-tenant system. Furthermore, the management device creates, for each terminating device, conversion information in which the first identifier that is allocated to each of the virtual machines is associated with the second identifier. Then, the management device sets each terminating device such that a packet is encapsulated in accordance with the created conversion information.

Abstract: 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.

Abstract: According to an embodiment of the application, a relay apparatus includes a destination storage unit configured to store the information about a destination of a multicast packet in association with a multicast address; a determination unit configured to determine whether the destination of the multicast packet is a first physical machine on the basis of the destination information stored in the destination storage unit in a migration process in which a virtual machine operating on the first physical machine is migrated to a second physical machine; and an addition unit configured to add information about the second physical machine to the destination information in the destination storage unit, the destination information corresponding to the multicast address that indicates the destination of the first physical machine, if the determination unit determines that the destination of the multicast packet is the first physical machine.

Abstract: A packet relay apparatus identifies port information for identifying a port, included in a partition corresponding to a reception port having received a packet, from a partition information storing unit which stores a correspondence between port information for identifying ports included in the partition and partition information for identifying the partition configured for the apparatus. The apparatus determines whether the identified port information is included in the port information stored by being corresponded to reception VLAN information which is VLAN information set for a received packet by a VLAN information storing unit which is a storing unit storing a correspondence between port information for identifying a port used for transmission and/or reception of a packet transmitted and VLAN information for identifying the virtual network. The apparatus transmits the packet from a port determined to include the port information in response to the determination that the port information is included.

Abstract: Each transmission port module includes a plurality of queues in association with combinations of a priority and a VLAN number. An accumulated-amount storage unit stores a total size of packets accumulated in queues associated with the same priority. A threshold storage unit stores a threshold of a total packet accumulated amount for each queue. When a packet is received, whether to discard the packet is determined based on a total packet accumulated amount stored in the accumulated-amount storage unit in association with a priority set for the packet and the threshold stored in the threshold storage unit in association with a storage-destination queue of the packet.

Abstract: Each switch blade receives, from a CPU server serving as a migration destination to which a VM to be migrated is migrated, a setting request of port profile information corresponding to the VM. Then, each switch blade determines whether a VSI ID included in the received setting request is stored in a storage unit that stores therein the VSI ID identifying the VM. Subsequently, each switch blade executes processing according to the setting request when determining that the received VSI ID is stored in the storage unit. Furthermore, when determining that the received VSI ID is not stored in the storage unit, each switch blade forwards the setting request to an external switch that is an upper-level data relay device connected to the CPU server serving as the migration destination through the corresponding switch blade.

Abstract: A packet storing unit stores relay instructions for received packets in different queues depending on priority and a VLAN number. DRR schedulers take out relay instructions from respective queues through a DRR technique. A priority control transmission scheduler transmits the packets to another apparatus according to the relay instructions in a descending order of priority.

Abstract: A network element aggregates a number of its ports together to form a link aggregation group. To move communications from one of the aggregated ports in case that port fails or otherwise becomes inactive, the network element may use exchange a special marker message and response with a remote network element coupled to the failed port. The network elements use proprietary signaling within the special marker message and response to enable the exchange of these messages on an active one of the aggregated ports while identifying the failed one of the ports.

Abstract: A data relay device includes a memory and a processor. The processor executes a data relay process includes determining that determining whether or not a storage device, which stores a virtual machine identifier of a virtual machine operated by the server connected with the computer and a port, stores the received virtual machine identifier in association with another port. The data relay process includes transferring that transfers the setting request of the port profile to a data relay device of an upper level higher than the data relay device in a communication path through which the virtual machine represented by the virtual machine identifier performs communication when it is determined that the received virtual machine identifier is not stored in association with the other port.

Abstract: A virtual network control program includes allowing a physical port of a destination server device, which is a destination of a virtual machine to be transferred by migration, to use a virtual network used by the virtual machine to be transferred when the physical port of the destination server device does not belong to the virtual network; determining whether or not the virtual network, which has been used by the virtual machine in a source server device, is used by another virtual machine running on the source server device when the virtual machine to be transferred has been transferred onto the destination server device; and inhibiting, when it is determined that the another virtual machine does not use the virtual network, that a physical port of the source server device uses the virtual network which has been used by the virtual machine to be transferred.

Abstract: A method for producing a thermally expandable base material for a vehicle interior, the method includes needling a web to produce a fiber mat. The web includes an inorganic fiber, a thermoplastic resin fiber, and a thermally expandable microcapsule. The fiber mat is heated to a temperature at which the thermoplastic resin fiber is melt and which is lower than a thermal expansion starting temperature of the thermally expandable microcapsule. The fiber mat is hot-pressed. The fiber mat is cooled.