Hitachi, Ltd.

Arizona State University

Japan Science and Technology Corporation

Tokyo Corporation

Masahiro Yoshizawa

Kazuma Yumoto

Hideki Okita

Tatsuya Sato

Eri Kawai

Takashi Kato

Tsuyoshi Tanaka

Yukiko Takeda

Keitaro Uehara

Toshiaki Tarui

Kazuyoshi Hoshino

Hideya Yoshiuchi

Hiroyuki Ohno

Ken Naono

Wu Xu

Machiko Asaie

Kiyoshi Kanie

C Austen Angell

Kenji Kasuga

Masayuki Oyamatsu

Jean-Philippe Belieres

Masafumi Yoshio

Hidehiro Akiyama

It is provided a management server is configured to store an access log including a monitoring subject ID, or a monitoring item ID when a request for outputting a historical data is inputted, an incident data including a time, a monitoring subject ID, or a monitoring item ID when an incident indicating a failure in the each of the devices; associate the incident data with the access log; update data included in the access log to a string of characters abstracted; generate an abstract access log; identify first abstract access log from the generated abstract access log based on the first incident data when a value indicating first incident data is inputted; identify a condition for the historical data to be outputted based on the first abstract access log and the first incident data; and output the identified condition for the historical data.

Management server, management system, and management method

If the operations manager makes configuration changes of the log database through configuration management interface, the configuration management interface records configuration information thereof on an management database. Furthermore, when log data of a monitoring target device are collected in a log collection unit through the log database, a log data volume analysis unit reads utilization information of data volume of the log database, and records the reading on a management database. A configuration changes proposal generating unit automatically generates configuration changes proposal of the log database based on the information recorded on the management database. Moreover, a metrics value for evaluating time required for configuration changes, a metrics value for evaluating performance in connection with the configuration changes, and a metrics value for evaluating the data volume in connection with the configuration changes are calculated, and an effect and an influence of changes proposal are presented to the operations manager.

Time-series database setup automatic generation method, setup automatic generation system and monitoring server

A power-saving network management server, which is coupled to a network system including a network device and manages a state of power to the network device, wherein the power-saving network management server is configured to: store network configuration information and task allocation information; determine starting or stopping of the power supply to the port of the network device based on the updated network configuration information and task allocation information; store a determination result of the starting or stopping of the power supply to the port as a port determination result; and control the power supply to the port of the network device based on the port determination result.

Power-saving network management server, network system, and method of determining supply of power

A failure factor can be promptly carved up by effectively prioritizing the ports to which MEPs are assigned in a condition where the maximum number of MEPs is limited. A network monitoring server monitors a network having plural switch devices. The plural switch devices each have a communication confirmation function using transmission and reception of a monitoring frame between ports. An upper limit is set to the number of ports to which maintenance end points (MEPs) are assignable among the respective ports of the plural switch devices. The network monitoring server calculates, for each of the plural switch devices, a monitoring priority corresponding to the probability of failures of a device connected to a network path including the port or the port, and generates data for displaying the calculated monitoring priority of each port in association with each port.

Network monitoring server and network monitoring system

A virtual network management server includes ring node information that manages configuration nodes for each of the rings, and ring connection I/F for each of the ring configuration nodes, generates the VLAN configuration information so as to transfer a frame that is transmitted or received by a designated gateway connection port and a designated base station connection port by the designated VLAN, and also so as to transmit or receive a tagged frame of the designated VLAN by the ring connection I/F of all of the ring to which the gateway connection switch belongs and the ring to which the base station connection switch belongs, and updates the VLAN configuration of the switch.

Virtual network management server and network system

When load balancing (LB) for SIP message communication is performed across multiple SIP servers, the number of messages that must be processed by an LB server is reduced. The SIP LB server includes an LB management means which, if the previous hop source of a received request message is a terminal in the local domain, determines which SIP server to serve the terminal, and a redirect function which notifies the message source terminal in the local domain of the address of the serving SIP server. The SIP LB server further includes an LB management table which, if the previous hop source of a received request message is other than a terminal in the local domain, is searched to find a SIP server serving communication with a destination terminal in the local domain, and a stateless forwarding function which statelessly forwards the received request message to the resolved SIP server address.

Load balancing server and system

Provided is a computer system including: a first computer; a second computer including a second processor and a second memory; and a communication controller for controlling communication between the first and second computers, in which: upon reception of a packet from the first computer, the communication controller translates address information of the received packet to transfer the packet to the second computer; the second memory stores SA candidate information as SA information in which a part of the address information is unknown; and the second processor decrypts the packet encrypted by the first computer by using the SA candidate information upon reception of the encrypted packet from the first computer, and creates SA information based on the SA candidate information used for the decryption and the address information of the encrypted packet upon successful decryption of the encrypted packet.

Computer system establishing a safe communication path

Disclosed are developments in high temperature fuel cells including ionic liquids with high temperature stability and the storage of inorganic acids as di-anion salts of low volatility. The formation of ionically conducting liquids of this type having conductivities of unprecedented magnitude for non-aqueous systems is described. The stability of the di-anion configuration is shown to play a role in the high performance of the non-corrosive proton-transfer ionic liquids as high temperature fuel cell electrolytes. Performance of simple H(g) electrolyte/O(g) fuel cells with the new electrolytes is described. Superior performance both at ambient temperature and temperatures up to and above 200&#xb0; C. are achieved. Both neutral proton transfer salts and the acid salts with HSOanions, give good results, the bisulphate case being particularly good at low temperatures and very high temperatures. The performance of all electrolytes is improved by the addition of a small amount of involatile base of pKvalue intermediate between those of the acid and base that make the bulk electrolyte. The preferred case is the imidazole-doped ethylammonium hydrogensulfate which yields behavior superior in all respects to that of the industry standard phosphoric acid electrolyte.

Ionic liquids and ionic liquid acids with high temperature stability for fuel cell and other high temperature applications, method of making and cell employing same

If interaction between signaling gateways frequently occurs, it is possible that extended processings are executed redundantly on a path of signaling messages. To avoid such a redundancy, a consistent method is necessary for deciding a signaling gateway to execute an extended processing from among the signaling gateways. The signaling gateways, each time they receive a signaling message, calculate information about a path through which it is transferred. By passing the path information in addition to the signaling message to an extended processing program, the signaling gateways decide whether to execute the extended processing on the signaling gateways, on a session basis. A signaling gateway that has executed an extended processing adds information indicating a processing status to the signaling message to notify other signaling gateways of it.

Signaling gateway for multihop-relaying a signaling message

With respect to a communication operation between networks having no connection permission, a connection control apparatus calculates a communicatable detour communication path from a connection policy database, and in such a case that a communication operation can be carried out between these networks having no connection permission, the connection control apparatus permits the communication operation via a detour communication path after authentication.

Connection control system, connection control equipment and connection management equipment

Providing a new contents delivery method that is suitable for community networks and reduces leaks of personal information. Presentities indicating channels for information delivery are formed on presence service, and virtual channel communication terminals corresponding to their presentities are logically formed on an information delivery server. Thereby, contents are transmitted and received between the information delivery server and user communication terminals, and among the user communication terminals as if the contents were transmitted and received between a presentity indicating a channel and a presentity indicating a user. During contents transmission and reception, the need to exchange address information among users is eliminated, making it possible to prevent leaks of personal information.

Push-type information delivery method, push-type information delivery system, information delivery apparatus and channel search apparatus based on presence service

A novel liquid-crystalline ionic conductor, which is useful in the electric, electronic, chemical and bioengineering fields, as an anisotropic reaction solvent, ionic conductor, electric field-responsible conductor or the like, and a method for producing the same, is provided. The liquid-crystalline ionic conductor is obtained by mixing an organic molten salt with a-liquid-crystalline organic molecule or a liquid-crystalline inorganic molecule, which comprises a moiety miscible to the organic molten salt and a moiety that shows liquid-crystalline orientation, thereby forming a liquid-crystalline ionic conductor, wherein the organic molten salt is assembled to the liquid-crystalline molecule.

Growing community of inventors

Kokubunji, Japan

Masahiro Yoshizawa