Abstract:
A communications control device that, if a communications failure occurs at location in a first path for communications that extends across a plurality of communications layers, selects any second path from a candidate group including at least one second path for continuing communications without going via the location where the communications failure has occurred, on the basis of the time required for each second path to switch from the first path to the second path, and sends, to a communications device for performing the switching, an instruction for switching the first path to the selected second path and continuing communications.
Abstract:
A local-memory side data transfer unit increments the number of addresses, reads out data from a local memory, and stores the data into a cache memory of a remote-memory side data transfer unit. For preventing data mismatching with the local memory from being stored into the cache memory, a cache clearing operation is executed in units of an elapse of a round trip time period for data transfer between the local memory and the remote memory. Alternatively, the cache clearing operation is executed upon receipt of a signal notifying data transfer of data stored at a specified address.
Abstract:
A server, includes a virtual machine identifier assigning section to assign an identifier of a virtual machine operating on the server; and a network interface to transmit a packet including a Layer 2 header information which includes the identifier of the virtual machine and a first packet field for a VLAN-Tag, wherein the network interface transmits the packet to a packet encapsulate section which encapsulates a second packet field including the Layer 2 header information with a virtual network identifier representing a virtual network to which the virtual machine belongs.
Abstract:
A server, includes a virtual machine identifier assigning section to assign an identifier of a virtual machine operating on the server; and a network interface to transmit a packet including a Layer 2 header information which includes the identifier of the virtual machine and a first packet field for a VLAN-Tag, wherein the network interface transmits the packet to a packet encapsulate section which encapsulates a second packet field including the Layer 2 header information with a virtual network identifier representing a virtual network to which the virtual machine belongs.
Abstract:
A system that includes a plurality of nodes to forward a data packet in a network, includes a controller to select at least a node dividing a data path of the data packet into a first path and a second path, from the nodes, based on a condition of the data path, and a node selected by the controller being capable of forwarding the packet to the first path and the second path according to an instruction from the controller. The second path includes a bypass path of the first path.
Abstract:
A server, including a virtual machine identifier assigning section to assign an identifier of a virtual machine operating on the server; and a network interface to transmit a packet including a Layer 2 header information which includes the identifier of the virtual machine, wherein the network interface transmits the packet to a packet encapsulate section which encapsulates a packet field including the Layer 2 header information with a virtual network identifier, wherein the virtual network identifier represents a virtual tenant network corresponding to the virtual machine in multiple tenants network.
Abstract:
A server, includes a virtual machine identifier assigning section to assign an identifier of a virtual machine operating on the server; and a network interface to transmit a packet including a Layer 2 header information which includes the identifier of the virtual machine and a first packet field for a VLAN-Tag, wherein the network interface transmits the packet to a packet encapsulate section which encapsulates a second packet field including the Layer 2 header information with a virtual network identifier representing a virtual network to which the virtual machine belongs.