Patent application number | Description | Published |
20090262747 | RELAYING APPARATUS AND PACKET RELAYING METHOD - 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. | 10-22-2009 |
20090262748 | RELAYING APPARATUS AND PACKET RELAYING APPARATUS - 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. | 10-22-2009 |
20100135307 | SWITCH - 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. | 06-03-2010 |
20100284410 | PACKET RELAY APPARATUS AND PACKET RELAY METHOD - 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. | 11-11-2010 |
20120134359 | SWITCH AND SWITCHING METHOD - A switch includes a plurality of port units, a tag attaching unit, a switching unit, and a tag removing unit. Each of the plurality of port units includes a port configured to receive a packet or transmit a packet. The tag attaching unit determines a sub-group identifier on the basis of an input port identifier for identifying an input port which has received an input packet and a group identifier included in the input packet for identifying a group of ports, and attaches a sub-group tag including the determined sub-group identifier to the input packet to acquire an augmented packet. The switching unit determines an output port for outputting the input packet on the basis of the determined sub-group identifier, the group identifier, and a destination address included in the augmented packet. The tag removing unit removes the attached sub-group tag from the augmented packet to acquire the input packet. | 05-31-2012 |
20120278807 | VIRTUAL NETWORK CONTROL PROGRAM, VIRTUAL NETWORK CONTROL METHOD AND INFORMATION PROCESSING APPARATUS - 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. | 11-01-2012 |
20130061225 | DATA RELAY DEVICE, COMPUTER-READABLE RECORDING MEDIUM, AND DATA RELAY METHOD - 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. | 03-07-2013 |
20130298126 | COMPUTER-READABLE RECORDING MEDIUM AND DATA RELAY DEVICE - 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. | 11-07-2013 |
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 |
20140208317 | MULTI-TENANT SYSTEM AND CONTROL METHOD OF MULTI-TENANT SYSTEM - 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. | 07-24-2014 |
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 |