Abstract: The present invention provides a network operations management method and apparatus which realizes efficient power-saving by enabling virtual servers to move between physical servers beyond network segments. A reallocation design unit 13 designs reallocation of virtual servers to physical servers so that necessary resource amounts are assigned to all virtual servers. When virtual servers VS need to move between physical servers PS beyond network segments NS for the designed reallocation, a grouping unit 14 changes a network segment NS to which physical servers PS are connected by changing the configuration of a router and switches. A reallocation unit 15 realizes efficient power-saving by reallocating the virtual servers to the physical servers based on the design made by the reallocation design unit 13.

Abstract: By simply connecting consumer equipments physically to a home network, configurations are set automatically for the consumer equipment, and the consumer equipment is enabled to be remote operated easily via a home gateway that is not necessarily fixed in address.

Abstract: The present invention provides a network configuration restoration method and system which can perform restoration by copying past configuration files in a short time. An updating judging unit 304 judges updating of each network device by comparing an acquired configuration file and a registered configuration file linked to a first identifier representing a copy timing. A new save unit 312 acquires an updated configuration file from a network device, and links the updated configuration file to a first identifier and a second identifier which sets the current timing as a new save timing and saves it in a configuration file database 301. A save unit 311 copies a registered configuration file of a network device whose configuration file has not been updated and links it to a first identifier representing the copy timing and a second identifier linked to this configuration file and saves it.

Abstract: In a network including equipment noncompliant to the topology management protocol, a message substitution response system executing substitution response to a message discovered or topology search message in lieu of the noncompliant equipment is provided. The substitution response module generation unit 22 generates a substitution response module which responds to Discover message and topology search message in lieu of each of LLTD noncompliant equipment for every LLTD noncompliant equipment. The network simulation module generation unit 23 generates a network simulation module for simulating message transmission on the home network. The substitution response functional unit 24 simulates message transmission between the home network and each of substitution response modules, and message transmission between each of substitution response modules by said network simulation module.

Abstract: The present invention provides a network operations management method and apparatus which realizes efficient power-saving by enabling virtual servers to move between physical servers beyond network segments. A reallocation design unit 13 designs reallocation of virtual servers to physical servers so that necessary resource amounts are assigned to all virtual servers. When virtual servers VS need to move between physical servers PS beyond network segments NS for the designed reallocation, a grouping unit 14 changes a network segment NS to which physical servers PS are connected by changing the configuration of a router and switches. A reallocation unit 15 realizes efficient power-saving by reallocating the virtual servers to the physical servers based on the design made by the reallocation design unit 13.

Abstract: In a network including equipment noncompliant to the topology management protocol, a message substitution response system executing substitution response to a message discovered or topology search message in lieu of the noncompliant equipment is provided. The substitution response module generation unit 22 generates a substitution response module which responds to Discover message and topology search message in lieu of each of LLTD noncompliant equipment for every LLTD noncompliant equipment. The network simulation module generation unit 23 generates a network simulation module for simulating message transmission on the home network. The substitution response functional unit 24 simulates message transmission between the home network and each of substitution response modules, and message transmission between each of substitution response modules by said network simulation module.

Abstract: The present invention provides a network configuration restoration method and system which can perform restoration by copying past configuration files in a short time. An updating judging unit 304 judges updating of each network device by comparing an acquired configuration file and a registered configuration file linked to a first identifier representing a copy timing. A new save unit 312 acquires an updated configuration file from a network device, and links the updated configuration file to a first identifier and a second identifier which sets the current timing as a new save timing and saves it in a configuration file database 301. A save unit 311 copies a registered configuration file of a network device whose configuration file has not been updated and links it to a first identifier representing the copy timing and a second identifier linked to this configuration file and saves it.

Abstract: A method for controlling routes in a network which is temporarily formed among a plurality of nodes. The method includes the steps of broadcasting a discovery demand of a destination node; receiving a first reply from the destination node with respect to the discovery demand; referring a joint count contained in the first reply and registering the joint count in a node which received the reply; adding 1 to the joint count if there is a plurality of nodes forming a plurality of links to which the reply is transferred, and transmitting the reply to each of the links, and selecting one of the links having a smaller registered joint count as a route if there is a plurality of links through which the data is transmitted to the destination node.

Abstract: The present invention provides an automatic setting system which can automatically or semi-automatically set a network ID into power line modems by remote operations. The present invention includes a step (S1) of detecting a request of setting a network ID into power line modems, a step (S4) of transmitting a network ID request including user ID to a user administration server on a wide area network in response to the setting request, a step (S5) of receiving a network ID reply from the user administration server, a step (S6) of storing terminal ID of the respective power line modems and a network ID included in the network ID reply for each power line modem, and a step (S10) for setting a network ID into the power line modems by transmitting the terminal ID of the respective power line modems and a network ID onto the power line network.

Abstract: By simply connecting consumer equipments physically to a home network, configurations are set automatically for the consumer equipment, and the consumer equipment is enabled to be remote operated easily via a home gateway that is not necessarily fixed in address.

Abstract: The present invention is directed to improve convenience to the user. A path extending from the present location S of a mobile terminal to a destination D via a base station is calculated (S2), distances between base stations on the calculated path and the present location are calculated, and the closest base station is determined as a contents delivery base station (S7). Grace time for the mobile terminal to pass through the contents delivery base station is calculated. Then, scheduled time to deliver the contents to the mobile terminal is calculated (S8). While monitoring a travel state of the mobile terminal (S10 to S12), the contents are delivered to the mobile terminal near the contents delivery base station (S14).

Abstract: The present invention comprises the steps of performing the network setting for the user equipment by the user equipment itself, sending a discover request message to the respective home network equipment by the user equipment, sending a discover reply message including their own equipment information by the respective home network equipment, performing the specific network setting for the respective home network equipment by the user equipment, setting authentication information to the home network equipment by the user equipment, performing a communication test based on the authentication information by the user equipment and the center server, downloading configuration information corresponded to the authentication information from the center server by the user equipment, and setting the configuration information to the user equipment by the user equipment itself.

Abstract: A polling period controlling apparatus capable of polling with a period traceable temporal variations of management information values of a managed unit is provided with a polling period calculator 5 which decomposes a sequence of management information values, stored in the sequence memory 4, into the sum of sinusoids with different frequencies to find the maximum frequency and determines the polling period from an inverse of two times the largest frequency. A central controller 2 then compares between the required bandwidth specified by the polling period and a network management bandwidth and, when the former is smaller than the latter, obtains the management information value from the managed unit 11 using the polling period. When the former is greater, the central controller 2 obtains the management information value using the polling period determined from the network management bandwidth.

Abstract: The present invention is directed to improve convenience to the user. A path extending from the present location S of a mobile terminal to a destination D via a base station is calculated (S2), distances between base stations on the calculated path and the present location are calculated, and the closest base station is determined as a contents delivery base station (S7). Grace time for the mobile terminal to pass through the contents delivery base station is calculated. Then, scheduled time to deliver the contents to the mobile terminal is calculated (S8). While monitoring a travel state of the mobile terminal (S10 to S12), the contents are delivered to the mobile terminal near the contents delivery base station (S14).

Abstract: A method for controlling routes in a network which is temporarily formed among a plurality of nodes. The method includes the steps of broadcasting a discovery demand of a destination node; receiving a first reply from the destination node with respect to the discovery demand; referring a joint count contained in the first reply and registering the joint count in a node which received the reply; adding 1 to the joint count if there is a plurality of nodes forming a plurality of links to which the reply is transferred, and transmitting the reply to each of the links, and selecting one of the links having a smaller registered joint count as a route if there is a plurality of links through which the data is transmitted to the destination node.

Abstract: A service discovery protocol server for discovering a service provided by an apparatus using a service discovery protocol, from another apparatus using a service discovery protocol different from the service discovery protocol has a common database for storing service information on a plurality of service discovery protocols, written in a common format, and a handler unit for handling one of the plurality of service discovery protocols. The handler unit includes a conversion unit for mutually converting service information between a format used in the one service discovery protocol handled in this handler unit and the common format.

Abstract: Provided is a policy based management system such that a policy enforced by each router (a managed device) in a network can be optimally adjusted in real time according to a traffic usage. At a managed device 3 in a network NT, there is provided: a policy enforcement means 31 for enforcing policy information distributed from a management device 2, thereby controlling a traffic; a policy evaluation means 32 for evaluating a policy based on policy evaluation information distributed from the management device 2; and a policy adjustment means 33 for dynamically adjusting the policy based on the policy adjustment information distributed from the management device 2 and the evaluation result caused by said evaluation means.

Abstract: The present invention provides a contents provision method where contents required by a user may be provided with high quality at a place and a time which are reserved by the user.

Abstract: If an error range is specified with regard to the cost beforehand, a route satisfying all of a plurality of QoS conditions at a low cost and having a cost in the error range is selected as an optimum route. Such a route selection method is provided. At step S1, a plurality of QoS conditions to be satisfied are set. At step S2, an approximation error &egr; is input. At step S3, a range of a cost for searching for an optimum route is tentatively set. At step S4, an optimum solution cost approximation procedure is executed. At step S5, it is determined whether the cost searching range has been sufficiently narrowed. If the narrowed cost searching range is still too wide, then the processing returns to the step S4 and the optimum solution cost approximation procedure is repeated. If the cost searching range has already been narrowed, an optimum solution deriving procedure is executed at step S6.

Abstract: The managed object instance is used as access control unit, then access denial and permission are quickly decided. After a pre-process to the naming tree which is an object of access control, MOI included within every scope which can be designated by the management operation is obtained. At every issue of the management operation, access denial and permission are decided by using the data obtained in the pre-process. When the configuration of the naming tree is changed, the data are easily and rapidly revised, then the access control is adaptive to the dynamic change of the naming tree.