摘要:
Reactive congestion control in an asynchronous transfer mode (ATM) network where the network is formed by the interconnection of nodes each including a forward path for transfer of information from source to destination through the network and a return path for returning congestion control signals. Each source includes a modifiable issue rate unit which issues forward information signals at different rates for virtual channels in response to the presence and absence of congestion signals received on the return path.
摘要:
A communication unit for concurrently processing cells in an asynchronous transfer mode (ATM) network. Packets are segmented into a plurality of cells concurrently for a plurality of channels for transmission over the (ATM) network. Cells received from the ATM network are reassembled concurrently for the plurality of channels. Pipelined processing units are employed for segmentation and for reassembly each having logic control, control memory, and data memory. The segmentation unit control memory stores two-dimensional queues with first dimension rate queues for queueing descriptors for cells of different channels having cells to be transmitted and with second dimension channel queues for each channel having a cell descriptor in the rate queue.
摘要:
An example method, system, and switching element are provided and may provide for an egress port to be configured to receive a plurality of data packets, each of the plurality of data packets being a class of a plurality of classes. A buffer may communicate with the at least one data port interface. A memory management unit may be configured to enable and disable transmission of the plurality of classes of the plurality of data packets based on a metering policy; and place the plurality of data packets in the buffer.
摘要:
A method for copy protecting a record carrier is disclosed, in which method the copy protected record carriers are provided with a pattern of logical errors which cannot be corrected by the error correcting rules predefined for said record carrier. The pattern of logical errors represents access control information. The logical errors are generated during decoding the bit sequence read from the record carrier. Bit errors may be positioned in the bit sequence so as to counteract de-interleaving which is part of an error decoding process in a reading device and accumulate in error words which are uncorrectable. Also a method for detecting access control information and a retrieval arrangement are disclosed, which retrieval arrangement serves to detect the access control information by selecting at least one error location, but not all error locations on the record carrier, and verifying the presence of an error by reading the selected error location via the reading means.
摘要:
According to this invention, a conventional pair of golf gloves is provided with pads across the palm portions thereof which abut the grip portion of a golf club shaft to automatically align the shaft for proper gripping. The guide pads are so positioned across the palm portions of the gloves that when the golf club head is sole on the ground and the upper and lower gripping hands of a golfer wearing the gloves receive the grip portion of the club shaft across the palms of the glove and against the pads, the shaft will lie diagonally across the roots of the fingers and when the hands are closed around the shaft with the guide pads cradling the grip portion of the golf club distal from the golf club head, an automatic proper gripping of the golf club will be insured. The guide pads are substantially parallel to the transverse creases of the hand, lying diagonally across the roots of the fingers. The pad on the first glove spans substantially the entire palm of the hand. The pad on the second glove spans from about the outer edge of the index finger to about the middle of the metacarpal-phalangeal joint of the second finger of the hand. Differences between the lengths of the pads allow the use of the gloves without one pad impinging upon the other.
摘要:
A method and apparatus for dynamically shifting between switching and routing packets efficiently to provide high packet throughput. The present invention provides a method for transmitting packets between an upstream node and a downstream node in a network that utilizes flow classification and labelling to redirect flows. The method includes the steps of establishing default virtual channels between the upstream node and the downstream node, receiving a packet at the downstream node, performing a flow classification at the downstream node on the packet to determine whether the packet belongs to a specified flow that should be redirected in the upstream node, selecting a free label at the downstream node, and informing the upstream node that future packets belonging to the specified flow should be sent with the selected free label attached. Other embodiments of the present invention include a basic switching unit, a switch gateway unit, and a switching agent for use in a system for transmitting packets in a network. Another embodiment includes system software, fixed on tangible media, that performs flow classification of packets to enable flow labelling and redirection to dynamically shift between Layer 3 IP packet routing and Layer 2 switching to optimize packet traffic throughput. A further embodiment provides a method for switching a flow at a first node in a network.
摘要:
An example method, system, and switching element are provided and may provide for an egress port to be configured to receive a plurality of data packets, each of the plurality of data packets being a class of a plurality of classes. A buffer may communicate with the at least one data port interface. A memory management unit may be configured to enable and disable transmission of the plurality of classes of the plurality of data packets based on a metering policy; and place the plurality of data packets in the buffer.
摘要:
A method and system to manage network congestion are provided. In one example embodiment, the method comprises receiving an indication of a rate increase request at a reaction point computer system, determining information indicative of a frequency of rate decrease requests during a period of time, and initiating a rate increase signal utilizing the information indicative of the frequency of rate decrease requests during the period of time.
摘要:
A radiation detector having glass emitting photons by scintillation in response to incident neutrons and/or electromagnetic radiation of at least about 1 keV, and a system associated with the glass for detecting the presence of photons emitted by scintillation. The glass ceramic material is a fluoride glass matrix having nanocrystalline particles distributed therein substantially all of which are in a phase that scintillates with average diameters of less than about 100 nm in a fluorozirconate matrix. Various metals are disclosed for the ceramic particles and methods of manufacture are also disclosed.