Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 H2(g) electrolyte/O2(g) fuel cells with the new electrolytes is described. Superior performance both at ambient temperature and temperatures up to and above 200° C. are achieved. Both neutral proton transfer salts and the acid salts with HSO?4 anions, give good results, the bisulphate case being particularly good at low temperatures and very high temperatures.

Abstract: 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.

Abstract: In a system having physical machine resources and network component resources, a resource management technique is provided that is effective for deploying virtual machines utilizing these resources. A surplus policy regarding surplus resources is prepared as a parameter adjustable by the system administrator. A placement plan generating program at a VM placement plan generating server generates placement plans for virtual machines in response to alteration of the surplus policy. Then, a placement plan verification program at the VM placement plan generating server validates whether each of the created placement plans complies with the altered surplus policy. This validation is performed by simulating the amounts of utilization of both physical machine resources and network component resources. The VM placement plan generating server presents the placement plans that passed this validation, as those causing no problem in performance, to the system administrator through the use of an administrator terminal.

Abstract: 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.

Abstract: 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.

Abstract: Provided is a computer system, comprising a management server and a presence server. The user terminals include a first user terminal for originating a question and a second user terminal for responding to the question originated from the first user terminal. The management server comprising: an interface coupled to the network; a processor coupled to the interface; and a memory coupled to the processor. The management server calculates an unresponsive time taken until the second user terminal becomes ready to receive a notification of the question transmitted from the first user terminal by referring the presence information acquired from the presence server upon detection of an origination of the question from the first user terminal, estimates an expected response time of the second user terminal based on the calculated unresponsive time, and notifies the first user terminal of the estimated expected response time.

Abstract: A data distribution system is provided which, in a network where data is exchanged between users, prevents the users from downloading malicious data without knowing whether the data he or she is going to download is the desired data. In a system configuration, a network administrator makes publicly known to the users, distributor identifiers uniquely assigned to data distributors in advance, and prohibits a data distribution by a user with a distributor identifier when the administration is notified that a malicious data has been distributed from the user, thereby securing reliability of the data distributors. A signature of the data is used to detect tampered data and prevent such data from being redistributed. Further, a user who tampered with the data is identified and then prevented from using the network.

Abstract: A proxy response terminal wherein information relating to the call being called is acquired and the call to which a proxy response is to be made is expressly specified so that the call may be responded. The proxy response terminal includes an incoming information acquiring means for requesting the information relating to the call in the calling state to the call control apparatus and a proxy response requesting means for issuing connection request specifying the call to which a proxy response is to be made based on the information notified by the call control apparatus.

Abstract: 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.

Abstract: A 1-chip microcomputer of the present invention has (a) a monitor flag for setting a flag indicating that a specified address space is accessed, (b) an access permission address range setting register, for setting an address range in which an access is permitted while the flag is set, (c) an access permission area detection circuit for judging whether the access is made within the address range thus set, (d) an access permission setting register, for setting whether or not an access with respect to an address other than the address range should be permitted, and (e) memory read-out control circuit and memory writing control circuit for controlling an access with respect to a nonvolatile memory based on a result thus judged and content set by the access permission setting register. With the arrangement, it is possible to provide a 1-chip microcomputer that maintains the security among application programs.

Abstract: A curing composition comprising (A) a silane compound having formula: R12Si(OR2)2 wherein R1 is C1–C3 alkyl, C2–C3 alkenyl or phenyl, and R2 is C1–C3 alkyl, C2–C3 acyl or C3–C5 alkoxyalkyl and (B) phosphoric acid is added to an organosilicon compound to formulate a silicone-base coating composition which remains shelf stable and quickly cures at room temperature after being applied to a substrate, to form a cured coating having transparency, surface hardness, adhesion and the like. A silicone-base coating composition having the curing composition formulated therein is effective as a solventless, RTV silicone coating composition of one part type.

Abstract: 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 H2(g)electrolyte/O2(g) fuel cells with the new electrolytes is described. Superior performance both at ambient temperature and temperatures up to and above 200° C. are achieved. Both neutral proton transfer salts and the acid salts with HSO?4 anions, give good results, the bisulphate case being particularly good at low temperatures and very high temperatures.

Abstract: 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.

Abstract: 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.

Abstract: 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.