| Patent application number | Description | Published |
|---|
| 20080219166 | NODE AND FAIR RATE CALCULATING METHOD - A topology database stores the number of RPR nodes which belong to an RPR network. A traffic rate measuring unit sends a variety of parameters for calculating a communication band available to a fairness controlled traffic packet to a fairness control unit. Upon detection of congestion, the fairness control unit calculates a communication band available for transmission of the fairness controlled traffic packet from the parameters sent from the traffic rate measuring unit, divides the communication band by the number of nodes to find an initial value for a fair rate. | 09-11-2008 |
| 20080285555 | NODE, COMMUNICATION METHOD, AND PROGRAM FOR NODE - The present invention provides a node capable of preventing the problems caused by switching between traffic communication paths when a link failure occurs. According to an embodiment of the invention, among ports of a node | 11-20-2008 |
| 20090022168 | PACKET RING NETWORK SYSTEM, METHOD OF CONNECTING PACKET RINGS, AND INTER-RING CONNECTING NODE - [Problems] To enable each of a plurality of links connecting rings to perform packet transfer while preventing multiple reception of packets and broadcast stream in a normal state where no failure has occurred. | 01-22-2009 |
| 20090034412 | Packet Ring Network System, Packet Transfer System, Redundancy Node, and Packet Transfer Program - In a ring network to which a plurality of nodes are connected, even though a failure occurs in a link between a node and a client apparatus (a user terminal) or a node itself, communication between the node and the client apparatus can be achieved. Nodes ( | 02-05-2009 |
| 20090052317 | Ring Network System, Failure Recovery Method, Failure Detection Method, Node and Program for Node - In a multi-ring network with a plurality of rings to which RPR is applied connected, high-speed failure recovery is enabled when a failure occurs between the rings. The contact nodes | 02-26-2009 |
| 20090185566 | NETWORK NODE, FRAME TRANSFER PROGRAM AND FRAME TRANSFER METHOD - A network node including an FDB for registering a relationship between a destination MAC address and a port label, an input port table for registering a relationship between an input port and a port label, and a port label table for registering a relationship between a port label and an output port, at the reception of a frame, registers a relationship between a transmission source MAC address of a frame and a port label registered for an input port in the input port table at the FDB, at the time of transmission of a frame, transmits the frame to an output port registered at the port label table which port corresponds to a port label registered for the destination MAC address in the FDB and at the time of processing of flushing or updating the FDB unit, changes the contents of the input port table and the port label table. | 07-23-2009 |
| 20090268746 | COMMUNICATION SYSTEM, COMMUNICATION METHOD, NODE, AND PROGRAM FOR NODE - In the case where a terminal under an RPR node ( | 10-29-2009 |
| 20100014527 | PACKET RING NETWORK SYSTEM, PACKET FORWARDING METHOD AND NODE | 01-21-2010 |
| 20100158002 | COMMUNICATION SYSTEM, NODE, TERMINAL, PROGRAM AND COMMUNICATION METHOD - In a communication system formed of two or more networks in which a part or all of nodes belonging to each said network form a plurality of combinations of nodes so as not to overlap with other node on the network to which each node belongs, the nodes belonging to the same combination are connected with each other and terminals are connected under the control of a part or all of the nodes belonging to the same combination, a node belonging to the combination transmits a frame received from a terminal under the control of the node itself to any of adjacent nodes on the network to which the node itself belongs and a node belonging to the same combination to which the node itself belongs and connected to the node itself. This obtains a highly reliable communication system whose desired transmission capacity can be realized at low costs and which can be restored from an abnormal state in a short time period. | 06-24-2010 |
| 20100226377 | Communication System, Node, Terminal and Communication Method and Program - It is possible to increase the communication system transmission capacity flexibly and at low cost in accordance with a communication system traffic amount. A terminal connected to a plurality of networks distributes a plurality of frame segments generated by dividing a single frame to the plurality of networks connected to the local terminal transmits them. Further, the terminal reconstructs the original frame from the plurality of frame segments generated by dividing the single frame. It should be noted that each of the frame segments contains division configuration information indicating how the frame has been divided (the number of divisions and the order of the frame segments) and also contains information required for performing MAC address learning for determining the path to the destination terminal. | 09-09-2010 |
| 20100232322 | NODE, NETWORK SYSTEM, FRAME TRANSFER METHOD, AND FRAME TRANSFER PROGRAM - For eliminating a reduction in throughput in a network as a whole according to optimum path transfer technique which is the expansion of spanning tree protocol, a frame switching unit of the network has an STP control unit for, when a port state of a spanning tree is changed, notifying a table control unit of an identifier of the spanning tree and a port number of a predetermined port among the respective ports, the table control unit for setting, in a forwarding table storage unit, a received port number of a predetermined port as an output port in an entry in which a node ID is equivalent to a spanning tree identifier, and a table search unit for determining an output destination from among output ports obtained by acquisition of received frame information from a frame analysis unit. | 09-16-2010 |
| 20110158086 | PACKET RING NETWORK SYSTEM, PACKET FORWARDING METHOD AND NODE | 06-30-2011 |
