Communication Device, Storage Medium, Integrated Circuit, and Communication System
First Claim
1. A communication device that performs communications via a network in which a plurality of communications with different priority ranking are performed and that controls communications in accordance with the priority rankings, comprising:
- a priority information holding unit for holding priority information with respect to the priority ranking of each communication; and
a path change control unit for generating, based on the priority information, first control data for changing a communication path for lower priority communication, and transmitting the first control data to a lower priority communication device performing the lower priority communication, or to a relay device relaying a lower priority communication performed between other communication devices via the network.
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Abstract
It is an object of the present invention to provide a QoS controllable communication device and communication system. A device 114 such as a first IP telephone comprising a QoS control unit 121 of the present invention transmits first transmission control data to a device 111 such as a PC performing lower priority communication. The first transmission control data includes data for changing the communication path of the lower priority communication, and the PC 111, having received the first transmission control data, performs subsequent lower priority communication through the first IP telephone or other device 114, enabling the first QoS control unit 121 to perform priority control. Because the present invention employs widely used protocols such as ARP and ICMP, the device 111 receiving the control data does not need protocols specific to the present invention.
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Citations
23 Claims
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1. A communication device that performs communications via a network in which a plurality of communications with different priority ranking are performed and that controls communications in accordance with the priority rankings, comprising:
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a priority information holding unit for holding priority information with respect to the priority ranking of each communication; and
a path change control unit for generating, based on the priority information, first control data for changing a communication path for lower priority communication, and transmitting the first control data to a lower priority communication device performing the lower priority communication, or to a relay device relaying a lower priority communication performed between other communication devices via the network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer readable recording medium having recorded thereon a priority control program to be executed by a control device that controls communications of a plurality of communications with different priority ranking performed via a network in accordance with the priority rankings so as to cause a computer to function as:
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a priority information holding unit for holding priority information with respect to the priority ranking of each communication; and
a path change control unit for generating, based on the priority information, first control data for changing a communication path for lower priority communication, and transmitting the first control data to a lower priority communication device performing the lower priority communication, or a relay device relaying lower priority communication performed between other communication devices via the network.
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22. An integrated circuit that controls communications in a network in which a plurality of communications with different priority ranking are performed in accordance with the priority rankings, comprising:
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a priority information holding unit for holding priority information with respect to the priority ranking of each communication; and
a path change control unit for generating, based on the priority information, first control data for changing communication path for lower priority communication, and transmitting the first control data to a lower priority communication device performing the lower priority communication, or a relay device relaying a lower priority communication performed between other communication devices via the network.
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23. A communication system in which a communication device that controls communications in accordance with priority ranking of communications is connected to a plurality of communication devices with different priority ranking, wherein
the communication device that controls communications in accordance with priority ranking includes: -
a priority information holding unit for holding priority information with respect to the priority ranking of each communication; and
a path change control unit for generating, based on the priority information, first control data for changing a communication path for lower priority communication having lower priority, and transmitting the first control data to a lower priority communication device performing the lower priority communication, or a relay device for relaying a lower priority communication performed between other communication devices via the network; and
the lower priority communication device or the relay device relaying lower priority communications with other communication devices performed via the network receives the first control data from the communication device that controls communications in accordance with the priority ranking to change the communication path for lower priority communication.
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Specification