COMMUNICATION DEVICE, START NODE, SYSTEM, METHOD AND COMPUET PROGRAM PRODUCT
First Claim
1. A communication device comprising:
- a signal reception unit that receives a start-up signal that a start node transmits for starting up a node to be started;
a first interface connected to Ethernet;
a second interface connected to Ethernet;
a power reception unit that receives PoE power through the first interface;
a PoE controller that receives the start-up signal and PoE power and gives a transmission instruction of a start-up power signal which is a PoE power signal having a signal pattern corresponding to the start-up signal; and
a power transmission unit that receives the transmission instruction from the PoE controller and transmits the start-up power signal through the second interface.
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Accused Products
Abstract
According to one embodiment, a communication device includes a start-up signal reception unit that receives a start-up signal that a start node transmits for starting up a node to be started; a first interface connected to Ethernet; a second interface connected to Ethernet; a power reception unit that receives PoE power through the first interface; a PoE controller that receives the start-up signal and PoE power and gives a transmission instruction of a start-up power signal which is a PoE power signal having a signal pattern corresponding to the start-up signal; and a power transmission unit that receives the transmission instruction from the PoE controller and transmits the start-up power signal through the second interface.
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Citations
11 Claims
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1. A communication device comprising:
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a signal reception unit that receives a start-up signal that a start node transmits for starting up a node to be started; a first interface connected to Ethernet; a second interface connected to Ethernet; a power reception unit that receives PoE power through the first interface; a PoE controller that receives the start-up signal and PoE power and gives a transmission instruction of a start-up power signal which is a PoE power signal having a signal pattern corresponding to the start-up signal; and a power transmission unit that receives the transmission instruction from the PoE controller and transmits the start-up power signal through the second interface. - View Dependent Claims (2)
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3. A communication device comprising:
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an interface connected to Ethernet; a power reception unit that is capable of receiving PoE power through the interface and receives start-up power signal which is a PoE power signal having a signal pattern corresponding to a first start-up signal that a start node transmits for starting up a node to be started; a PoE power conversion unit that receives the start-up power signal and gives a transmission instruction of a second start-up signal corresponding to a signal pattern of the start-up power signal; and a start-up signal transmission unit that receives the transmission instruction from the PoE conversion unit and transmits the second start-up signal. - View Dependent Claims (4)
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5. A communication device comprising:
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a start-up signal reception unit that receives a start-up signal that a start node transmits for starting up a node to be started; an interface connected to Ethernet; a power supply unit that supplies PoE power; a PoE controller that receives the start-up signal and PoE power and gives a transmission instruction of a start-up power signal which is a PoE power signal having a signal pattern corresponding to the start-up signal; and a power transmission unit that receives the transmission instruction from the PoE controller and transmits the start-up power signal through the interface.
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6. A system comprising:
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a start node including a first start-up signal transmission unit that transmits a first start-up signal; a first communication device including; a first start-up signal reception unit that receives the first start-up signal; a first interface connected to Ethernet; a second interface connected to Ethernet; a first power reception unit that receives PoE power through the first interface; a PoE controller that receives the first start-up signal and PoE power and gives a transmission instruction of a start-up power signal which is a PoE power signal having a signal pattern corresponding to the first start-up signal; and a power transmission unit that receives the transmission instruction from the PoE controller and transmits the start-up power signal through the second interface, a second communication device including; a third interface connected to Ethernet; a second power reception unit that receives the start-up power signal through the third interface; a PoE conversion unit that receives the start-up power signal and gives a transmission instruction of a second start-up signal corresponding to the signal pattern of the start-up power signal; and a second start-up signal transmission unit that receives the transmission instruction from the PoE conversion unit and transmits the second start-up signal, and a node to be started including a second start-up signal reception unit that receives the second start-up signal and being started up when receiving the second start-up signal. - View Dependent Claims (7)
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8. A start node for starting up a set of nodes to be started belonging to a specified group constituted by some of the nodes to be started that retain the same hash algorithm as a hash algorithm of the start node itself, comprising:
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a group address determination unit that inputs a plurality of different seeds to the hash algorithm to define a hash function for each seed, inputs a node address of the node to be started to calculate a hash value for each hash function and, when a belonging hash set which is a set of the hash values of the nodes to be started belonging to the group and a non-belonging set which is a set of the hash values of the nodes to be started not belonging to the group are disjoint, generates a group address representing the belonging hash set and the non-belonging hash set; a group address determination information creation unit that creates group address determination information including the seed input for defining the hash function for use in generating the group address; a batch start-up signal generation unit that generates a batch start-up signal including the group address of the group to be started; and a transmission unit that transmits the group address determination information and the batch start-up signal. - View Dependent Claims (9)
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10. A computer program product having a non-transitory computer readable medium including programmed instructions for outputting information, wherein the instructions, when executed by a computer, cause the computer to perform:
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receiving a start-up signal that a start node transmits for starting up a node to be started; receiving PoE power through a first interface connected to Ethernet; receiving the start-up signal and PoE power and giving a transmission instruction of a start-up power signal which is a PoE power signal having a signal pattern corresponding to the start-up signal; and receiving the transmission instruction and transmitting the start-up power signal through the second interface connected to Ethernet.
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11. A Method comprising:
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receiving a start-up signal that a start node transmits for starting up a node to be started; receiving PoE power through a first interface connected to Ethernet; receiving the start-up signal and PoE power and giving a transmission instruction of a start-up power signal which is a PoE power signal having a signal pattern corresponding to the start-up signal; and receiving the transmission instruction and transmitting the start-up power signal through the second interface connected to Ethernet.
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Specification