Patent application number | Description | Published |
20110296232 | Communication system, communication unit, control unit, and controlling method - Whether or not a signal which is transmitted from a current operation side node to a stand-by side node has been disconnected is determined on a communication route for the signal. When the signal is determined to have been disconnected, the network route is switched to the network route used when a client unit and the stand-by side node perform data communication. With this, the switching of the network route when processing having been performed by a node of a system is performed by another node in place of the node can be made quickly. | 12-01-2011 |
20120011264 | Communication flow control system, communication flow control method, and communication flow processing program - When a processing method determination means is not able to determine a processing method for a communication flow of packets, flow identification information transmission means transmits information within the packets equivalent to a portion or all of first flow identification information for identifying the communication flow to a processing determination unit. Control action determination means determines a control action on the basis of information received from a communication flow processing unit and second flow identification information stored in control action storage means. Control instruction means instructs the communication flow processing unit to control the communication flow on the basis of the control action. Processing method registration means registers a processing method for the communication flow with process method storage means on the basis of control instructions from a control unit. | 01-12-2012 |
20120233431 | RELAY DEVICE - A relay device | 09-13-2012 |
20130086295 | COMMUNICATION CONTROL SYSTEM, SWITCHING NODE, COMMUNICATION CONTROL METHOD AND COMMUNICATION CONTROL PROGRAM - In a switching node, high-speed and advanced service protocol processing function is achieved by utilizing an external control server without affecting performance of conventional service protocol processing. Specifically, a forwarding engine has PCI express and an LAN interface. Depending on a type of an input packet, destination of the packet is switched to the PCI express side for conventional network service and to the LAN interface side for extended network service that cooperates with the external control server. A CPU having the PCI express and the LAN interface is provided ahead of the LAN interface. The CPU performs communication of service inquiry with the external control server at high speed via the LAN interface. After response from the control server is obtained, setting of the forwarding engine is performed through the PCI express. | 04-04-2013 |
20130170495 | SWITCHING SYSTEM, SWITCHING CONTROL SYSTEM, AND STORAGE MEDIUM - A switch system realizes extension of the number of entries of an open flow table by using tables in a switch as existing resources. Specifically, the switch configures an open flow table by logically combining a plurality of tables, each of which defines processing to a given packet, based on a condition and a processing content defined in each table. The switch refers to the open flow table to determine the processing content to a reception packet. The switch executes the processing of the reception packet based on the determined processing content. | 07-04-2013 |
20130176888 | SWITCH SYSTEM, AND MONITORING CENTRALIZED CONTROL METHOD - A switch system allows free change of a grain degree of monitoring without being conscious of a routing control. For example, a control protocol of a transmitter is used based on the open flow (OpenFlow) technique to control the monitoring function of the switch system, and the centralized control of the monitoring can be realized as the whole network and the monitoring result is reflected on the routing control. Here, the switch has a flow table for packet transfer and a flow table for monitoring. Both of the tables are searched to one packet and a multi-hit operation is performed to execute the operation of each of the entries. That is, both the tables are searched and the packet is transferred according to corresponding flow entries. | 07-11-2013 |
20150312147 | SWITCHING SYSTEM, SWITCHING CONTROL SYSTEM, AND STORAGE MEDIUM - A communication apparatus to forward a packet, the communication apparatus comprising of a control unit to communicate with a controller, based on a predetermined control protocol, being capable of transmitting a first packet forwarding rule to a plurality of the communication apparatus, and a table divided into a first region to store the first packet forwarding rule and a second region to store a second packet forwarding rule set by the communication apparatus. | 10-29-2015 |
20150334016 | RELAY DEVICE - A communication apparatus includes a first unit configured to store a first rule from an external apparatus, a second unit configured to store a second rule from the external apparatus, and a third unit configured to process a received packet based on the first rule and the second rule. The first rule includes a first identification information to identify a packet and a first packet processing information to process the packet, and the second rule includes a second identification information to identify the packet and a second packet processing information to process the packet. | 11-19-2015 |