Kddi Corporation

Kokusai Denshin Denwa Kabushiki Kaisha

Kokusai Denshin Denwa Co., Ltd.

Kdd Corporation

Communications Research Laboratory, Independent Administrative Institution

Kiyohito Yoshihara

Hiroki Horiuchi

Daisuke Arai

Akira Idoue

Sadao Obana

Shinji Motegi

Keizo Sugiyama

Fumihide Kojima

Masayuki Fujise

Katsuyoshi Sato

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. A home gatewayincludes: a home management tablethat manages equipment information of consumer equipment connected to the home network; an equipment detectorthat cyclically transmits a detection request along the home network, detects consumer equipment, and acquires the equipment information of the detected consumer equipment; an equipment management unitthat updatingly registers the equipment information of the detected consumer equipment into the above-described home management table; a DHCP server functionthat sets network configurations for newly detected consumer equipment; and an equipment information registration unit that updatingly registers the equipment information in the home management table cyclically into a portal server

Consumer equipment remote operation system and operating method for the same

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 unitdesigns 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 unitchanges a network segment NS to which physical servers PS are connected by changing the configuration of a router and switches. A reallocation unitrealizes efficient power-saving by reallocating the virtual servers to the physical servers based on the design made by the reallocation design unit

Network operations management method and apparatus

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 unitjudges 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 unitacquires 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. A save unitcopies 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.

Network configuration restoration method and system

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 unitgenerates 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 unitgenerates a network simulation module for simulating message transmission on the home network. The substitution response functional unitsimulates 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.

Message substitution response system

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.

Method and device for controlling route and computer program therefor

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 (S), 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 (S). 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 (S). While monitoring a travel state of the mobile terminal (Sto S), the contents are delivered to the mobile terminal near the contents delivery base station (S).

Path predicting method for contents delivery apparatus

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 which decomposes a sequence of management information values, stored in the sequence memory , 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 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 using the polling period. When the former is greater, the central controller obtains the management information value using the polling period determined from the network management bandwidth. The management information value obtained is saved in the sequence memory while the oldest group of management data is eliminated.

Polling period controlling apparatus

Route selection method

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.

Growing community of inventors

Saitama, Japan

Kiyohito Yoshihara