摘要:
A firewall (FW) which detects a DOS attack cuts off the DOS attack, and outputs a log indicating an attack, and designates a source IP address of the DOS attack. A filtering command for cutting off an attack is generated in a router, and transmits it to the router. The router discards a packet transmitted from the specified IP address through the filtering operation.
摘要:
A system configuration includes a processing element (PE), an input/output (I/O) interface device and a shared memory. The PE further includes at least one processing unit (PU) and one, or more, attached processing units (APUs). At least one of the APUs performs an I/O function by reading data from, and writing data to, an external device coupled to the I/O interface device. Data is exchanged between the APU and the I/O interface device via the shared memory using a data level synchronization mechanism.
摘要:
Disclosed is an apparatus for controlling or managing the transmission of data packets over a multiplexed communication path, referred to herein as a bus, on a priority basis up to a given authorized BW (Bandwidth), in a given operational time period, for presently authorized devices or applications. Non-managed (not presently authorized) bus requests are handled in a prior art “best effort” basis.
摘要:
A computer architecture and programming model for high speed processing over broadband networks are provided. The architecture employs a consistent modular structure, a common computing module and uniform software cells. The common computing module includes a control processor, a plurality of processing units, a plurality of local memories from which the processing units process programs, a direct memory access controller and a shared main memory. A processing system is provided for processing programs and data. The processing system has a processing unit and multiple sub-processing units. Each sub-processing unit includes a dedicated local memory for storing programs and data. The dedicated local memory of each respective sub-processing unit is not a cache memory. In an alternative, multiple computing devices may connect to one another via a communications network, and each computing device may include at least one processing element having the processing unit and sub-processing units.
摘要:
The present invention provides for selectively overwriting sets of a cache as a function of a replacement management table and a least recently used function. A class identifier is created as a function of an address miss. A replacement management table is employable to read the class identifier to create a tag replacement control indicia. The cache, comprising a plurality of sets, is employable to disable the replacement of at least one of the plurality of sets as a function of the tag replacement control indicia.
摘要:
A system and method are provided for setting up a direct memory access for a first processor. The system includes the first processor and a local memory. The local memory is coupled to the first processor. A first direct memory access controller (DMAC) is coupled to the first processor and the local memory. A system memory is in communication with the first DMAC. A second processor is in communication with the first DMAC such that the second processor sets up the first DMAC to handle data transfer between the local memory and the system memory. The second processor is interrupted when the first DMAC finishes handling the data transfer.
摘要:
A computer architecture and programming model for high speed processing over broadband networks are provided. The architecture employs a consistent modular structure, a common computing module and uniform software cells. The common computing module includes a control processor, a plurality of processing units, a plurality of local memories from which the processing units process programs, a direct memory access controller and a shared main memory. A synchronized system and method for the coordinated reading and writing of data to and from the shared main memory by the processing units also are provided. A hardware sandbox structure is provided for security against the corruption of data among the programs being processed by the processing units. The uniform software cells contain both data and applications and are structured for processing by any of the processors of the network. Each software cell is uniquely identified on the network. A system and method for creating a dedicated pipeline for processing streaming data also are provided.
摘要:
A computer architecture and programming model for high speed processing over broadband networks are provided. The architecture employs a consistent modular structure, a common computing module and uniform software cells. The common computing module includes a control processor, a plurality of processing units, a plurality of local memories from which the processing units process programs, a direct memory access controller and a shared main memory. A synchronized system and method for the coordinated reading and writing of data to and from the shared main memory by the processing units also are provided. A hardware sandbox structure is provided for security against the corruption of data among the programs being processed by the processing units. The uniform software cells contain both data and applications and are structured for processing by any of the processors of the network. Each software cell is uniquely identified on the network. A system and method for creating a dedicated pipeline for processing streaming data also are provided.
摘要:
A method and system for attached processing units accessing a shared memory in an SMP system. In one embodiment, a system comprises a shared memory. The system further comprises a plurality of processing elements coupled to the shared memory. Each of the plurality of processing elements comprises a processing unit, a direct memory access controller and a plurality of attached processing units. Each direct memory access controller comprises an address translation mechanism thereby enabling each associated attached processing unit to access the shared memory in a restricted manner without an address translation mechanism. Each attached processing unit is configured to issue a request to an associated direct memory access controller to access the shared memory specifying a range of addresses to be accessed as virtual addresses. The associated direct memory access controller is configured to translate the range of virtual addresses into an associated range of physical addresses.
摘要:
While suppressing that a vibration of a piezo-electric element propagates to a substrate by devising the composition of an electro-conductive support body, the piezoelectric resonant component which secures electroconductivity and can maintain a fall-proof shock property is provided. The piezoelectric resonant component has a substrate 20 on the top surface of which pattern electrodes 21 and 22 are formed, and on the lower surface of which it has electrodes 8 and 9. It has a piezoelectric element 1 using the length vibration on the substrate 20. Electro-conductive support bodies 10 and 11 are fixed to the length direction center section of the lower surface electrodes of the piezoelectric element 1. The connection fixation of these support bodies 10 and 11 to the pattern electrodes 21 and 22 of the substrate 20 is performed by electro-conductive adhesives 12 and 13. The electro-conductive support bodies 10 and 11 include an urethane resin which contains an electro-conductive filler, making the rate of content of the electro-conductive filler 75-85 wt %.