Abstract: Upon receipt of a packet addressed to a virtual IP address assigned to each first device from a second device outside a base network, a processor identifies a base relay apparatus that accommodates the first device, to which the virtual IP address is assigned, on the basis of the virtual address and a protocol type of the received packet, and also identifies a reception port number of the identified base relay apparatus, which corresponds to a combination of the virtual IP address and the protocol type of the received packet, from among reception port numbers each assigned to a combination of the first device accommodated to identify a transfer destination, and a protocol type. Then, the processor relays the received packet to the identified reception port number of the identified base relay apparatus.

Abstract: Upon receipt of a packet addressed to a virtual IP address assigned to each first device from a second device outside a base network, a processor identifies a base relay apparatus that accommodates the first device, to which the virtual IP address is assigned, on the basis of the virtual address and a protocol type of the received packet, and also identifies a reception port number of the identified base relay apparatus, which corresponds to a combination of the virtual IP address and the protocol type of the received packet, from among reception port numbers each assigned to a combination of the first device accommodated to identify a transfer destination, and a protocol type. Then, the processor relays the received packet to the identified reception port number of the identified base relay apparatus.

Abstract: In a load balancing communication device and a load balance management device configuring a load balancing system, a storage holds, when the device is a load balancing communication device of a working system, working communication information of the device itself and protection communication information corresponding to working communication information of another or other load balancing communication devices of the working system, or holds, when the device is a load balancing communication device of a redundant system, protection communication information corresponding to working communication information of another or other load balancing communication devices of the working system, and a processing share management portion instructs, when communication processing is no longer performed with the working communication information in the load balancing communication device of the working system, a frame processor to perform communication processing by making the protection communication information correspon

Abstract: Information (service information) about service contents provided by servers is registered or updated by each of routing nodes by exchanging said information through use of a routing protocol used in controlling a path among the routing nodes. The routing node selectively changes address information about a service access request on the basis of the service information owned by the routing node, to thus route the service access request to an optimal destination. Thereby, concentration of load to a specific service can be efficiently dispersed.

Abstract: A network equipment has a group of first stage computing units that perform first stage processing on a packet, and has a group of second stage computing units that perform second stage processing on a packet after the first stage processing. The network equipment assigns the first stage processing that is to be performed on the packet to a computing unit in the group of first stage computing units; generates control information for determining which computing unit in the group of second stage computing units is to be assigned the second stage processing when the computing unit in the group of first stage computing units performs the first stage processing; and determines which computing unit in the group of second stage computing units is to be assigned the second stage processing on the packet based on the control information.

Abstract: In an ion blower 1 of the present invention, an opening/closing door 13 opens downward substantially by 90 degrees, so that discharge needles 16 are directed upward. In this case, since the direction of the discharge needles 16 do not intersect a blower body 10, at the time of maintenance, when the discharge needle 16 is pulled out, fingers and the hand move upward, and do not collide against the blower body 10 and the opening/closing door 13.

Abstract: The present invention relates to a DC type ionizer comprising a positive electrode 13P and a negative electrode 13N, an alternating current power supply 10, a rectifying and smoothing circuit 11, and high voltage generation circuits 12P and 12N that apply a high direct current constant voltage of positive polarity to the positive electrode 13P and apply a high direct current constant voltage of negative polarity to the negative electrode 13N, respectively, and a fan 14 that sends positive and negative ions generated by corona discharge around each of the electrodes 13P and 13N, in the direction of a target of static electricity removal.

Abstract: A system for monitoring life-and-death states of a plurality information processing apparatuses connected by a communication network, has life-and-death monitoring databases managing the life-and-death states of the information processing apparatuses for each particular group of groups to which the plurality of information processing apparatuses to be monitored are grouped; and a part of transferring in sequence, among the groups, by means of information transmission among the adjacent information processing apparatuses, information indicating the life-and-death states of the information processing apparatuses managed by the life-and-death monitoring databases.

Abstract: In a load balancing communication device and a load balance management device configuring a load balancing system, a storage holds, when the device is a load balancing communication device of a working system, working communication information of the device itself and protection communication information corresponding to working communication information of another or other load balancing communication devices of the working system, or holds, when the device is a load balancing communication device of a redundant system, protection communication information corresponding to working communication information of another or other load balancing communication devices of the working system, and a processing share management portion instructs, when communication processing is no longer performed with the working communication information in the load balancing communication device of the working system, a frame processor to perform communication processing by making the protection communication information correspon

Abstract: The invention relates to a content-addressable memory. An object of the invention is to make the content-addressable memory adaptable to various apparatuses and systems having different configurations without substantially altering the basic configuration thereof. The content-addressable memory includes a storage section having a plurality of storage areas for storing respective plural pieces of information; an ancillary storage section having a plurality of ancillary storage areas that correspond to the plurality of storage areas and store priority ranks that are assigned to the respective plurality of storage areas; and a controlling section for outputting, when at least one of the storage areas stores therein information matching with an externally supplied word, pointers of all or part of the at least one of the storage areas in descending order of priority ranks that are stored in ancillary storage areas corresponding to the at least one of storage areas.

Abstract: Information (service information) about service contents provided by servers is registered or updated by each of routing nodes by exchanging said information through use of a routing protocol used in controlling a path among the routing nodes. The routing node selectively changes address information about a service access request on the basis of the service information owned by the routing node, to thus route the service access request to an optimal destination. Thereby, concentration of load to a specific service can be efficiently dispersed.

Abstract: The invention relates to a content-addressable memory. An object of the invention is to make the content-addressable memory adaptable to various apparatuses and systems having different configurations without substantially altering the basic configuration thereof. The content-addressable memory includes a storage section having a plurality of storage areas for storing respective plural pieces of information; an ancillary storage section having a plurality of ancillary storage areas that correspond to the plurality of storage areas and store priority ranks that are assigned to the respective plurality of storage areas; and a controlling section for outputting, when at least one of the storage areas stores therein information matching with an externally supplied word, pointers of all or part of the at least one of the storage areas in descending order of priority ranks that are stored in ancillary storage areas corresponding to the at least one of storage areas.