Data transfer scheme using caching technique for reducing network load
First Claim
1. A data transfer device for receiving first data transmitted from a first communication device, transmitting the first data to another data transfer device connected to a second communication device that is a destination of the first data, receiving second data transmitted from the second communication device from the another data transfer device, and transmitting the second data to the first communication device that is a destination of the second data, the data transfer device comprising:
- a reception unit configured to receive the first data from the first communication device;
a cache unit configured to register cache data that were transmitted to the another data transfer device in past, in correspondence to cache data names each of which is generated according to a content of each cache data and assigned to each cache data;
a processing unit configured to carry out a processing for transmitting a first data name that is generated according to a content of the first data and assigned to the first data, instead of transmitting the first data, when the first data name is registered in the cache unit, or a processing for registering the first data in correspondence to the first data name into the cache unit and transmitting the first data when the first data name is not registered in the cache unit, upon receiving the first data transmitted from the first communication device; and
a transmission unit configured to transmit the first data name or the first data to the another data transfer device according to a processing carried out by the processing unit.
1 Assignment
0 Petitions
Accused Products
Abstract
In a data transfer scheme using a caching technique and/or a compression technique which is capable of reducing the network load of a network connecting between data transfer devices, correspondences between data and their names are registered at the data transfer devices and the corresponding names are transferred, instead of transferring the data, for those data for which the correspondences are registered, so that it is possible to reduce the amount of transfer data among the data transfer devices.
47 Citations
44 Claims
-
1. A data transfer device for receiving first data transmitted from a first communication device, transmitting the first data to another data transfer device connected to a second communication device that is a destination of the first data, receiving second data transmitted from the second communication device from the another data transfer device, and transmitting the second data to the first communication device that is a destination of the second data, the data transfer device comprising:
-
a reception unit configured to receive the first data from the first communication device; a cache unit configured to register cache data that were transmitted to the another data transfer device in past, in correspondence to cache data names each of which is generated according to a content of each cache data and assigned to each cache data; a processing unit configured to carry out a processing for transmitting a first data name that is generated according to a content of the first data and assigned to the first data, instead of transmitting the first data, when the first data name is registered in the cache unit, or a processing for registering the first data in correspondence to the first data name into the cache unit and transmitting the first data when the first data name is not registered in the cache unit, upon receiving the first data transmitted from the first communication device; and a transmission unit configured to transmit the first data name or the first data to the another data transfer device according to a processing carried out by the processing unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A data transfer device for receiving first data transmitted from a first communication device through another data transfer device, transmitting the first data to a second communication device that is a destination of the first data, receiving second data transmitted from the second communication device, and transmitting the second data to the another data transfer device connected to the first communication device that is a destination of the second data, the data transfer device comprising:
-
a reception unit configured to receive the first data or a first data name that is generated according to a content of the first data and assigned to the first data, from the another data transfer device; a cache unit configured to register cache data that were received from the another data transfer device in past, in correspondence to cache data names each of which is generated according to a content of each cache data and assigned to each cache data; a processing unit configured to carry out a processing for acquiring a cache data registered in correspondence to the first data name from the cache unit and transmitting an acquired cache data when the first data name is received from the another data transfer device, or a processing for registering the first data in correspondence to the first data name to be assigned to the first data into the cache unit and transmitting the first data when the first data is received from the another data transfer device; and a transmission unit configured to transmit the acquired cache data or the first data to the second communication device according to a processing carried out by the processing unit. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A data transfer method at a data transfer device for receiving first data transmitted from a first communication device, transmitting the first data to another data transfer device connected to a second communication device that is a destination of the first data, receiving second data transmitted from the second communication device from the another data transfer device, and transmitting the second data to the first communication device that is a destination of the second data, the data transfer method comprising:
-
receiving the first data from the first communication device; judging whether a first data name that is generated according to a content of the first data and assigned to the first data is registered in a cache unit configured to register cache data that were transmitted to the another data transfer device in past in correspondence to cache data names each of which is generated according to a content of each cache data and assigned to each cache data; and carrying out a processing for transmitting the first data name, instead of transmitting the first data, when the first data name is registered in the cache unit, or a processing for registering the first data in correspondence to the first data name into the cache unit and transmitting the first data when the first data name is not registered in the cache unit. - View Dependent Claims (34, 35)
-
-
36. A data transfer method at a data transfer device for receiving first data transmitted from a first communication device through another data transfer device, transmitting the first data to a second communication device that is a destination of the first data, receiving second data transmitted from the second communication device, and transmitting the second data to the another data transfer device connected to the first communication device that is a destination of the second data, the data transfer method comprising:
-
receiving the first data or a first data name that is generated according to a content of the first data and assigned to the first data, from the another data transfer device; and carrying out a processing for acquiring a cache data registered in correspondence to the first data name from a cache unit configured to register cache data that were received from the another data transfer device in past in correspondence to cache data names each of which is generated according to a content of each cache data and assigned to each cache data, and transmitting an acquired cache data when the first data name is received from the another data transfer device, or a processing for registering the first data in correspondence to the first data name to be assigned to the first data into the cache unit and transmitting the first data when the first data is received from the another data transfer device. - View Dependent Claims (37, 38)
-
-
39. A computer program product for causing a computer to function as a data transfer device for receiving first data transmitted from a first communication device, transmitting the first data to another data transfer device connected to a second communication device that is a destination of the first data, receiving second data transmitted from the second communication device from the another data transfer device, and transmitting the second data to the first communication device that is a destination of the second data, the computer program product comprising:
-
a first computer program code for causing the computer to receive the first data from the first communication device; second computer program code for causing the computer to judge whether a first data name that is generated according to a content of the first data and assigned to the first data is registered in a cache unit configured to register cache data that were transmitted to the another data transfer device in past in correspondence to cache data names each of which is generated according to a content of each cache data and assigned to each cache data; and a third computer program code for causing the computer to carry out a processing for transmitting the first data name, instead of transmitting the first data, when the first data name is registered in the cache unit, or a processing for registering the first data in correspondence to the first data name into the cache unit and transmitting the first data when the first data name is not registered in the cache unit. - View Dependent Claims (40, 41)
-
-
42. A computer program product for causing a computer to function as a data transfer device for receiving first data transmitted from a first communication device through another data transfer device, transmitting the first data to a second communication device that is a destination of the first data, receiving second data transmitted from the second communication device, and transmitting the second data to the another data transfer device connected to the first communication device that is a destination of the second data, the computer program product comprising:
-
a first computer program code for causing the computer to receive the first data or a first data name that is generated according to a content of the first data and assigned to the first data, from the another data transfer device; and a second computer program code for causing the computer to carry out a processing for acquiring a cache data registered in correspondence to the first data name from a cache unit configured to register cache data that were received from the another data transfer device in past in correspondence to cache data names each of which is generated according to a content of each cache data and assigned to each cache data, and transmitting an acquired cache data when the first data name is received from the another data transfer device, or a processing for registering the first data in correspondence to the first data name to be assigned to the first data into the cache unit and transmitting the first data when the first data is received from the another data transfer device. - View Dependent Claims (43, 44)
-
Specification