Asynchronous transfer mode traffic shapers
View Patent ↗The invention relates, in one embodiment, a computer-implemented method for shaping the output of cells on an output path of a data transmitting device. The data transmitting device is configured for switching the cells from a plurality of input paths to the output path to a network. In one embodiment the method includes sorting a plurality of queues, each queue including a plurality of cells associated with a communication device. The plurality of queues are arranged according to a weight and a data rate associated with each plurality of cells resulting in a plurality of sorted queues of queues. An aggregate output of cells from each sorted queue of queues is regulated based upon the data rates of the queues of the each sorted queue of queues. And, the output of the aggregate output of cells from each sorted queue of queues is regulated based upon the weights of the each sorted queue of queues, such that the scheduled output is coupled to the output path. The scheduled output conforms to a plurality of characteristics of the network, such that the network is efficiently used to carry the cells from the plurality of input paths to a plurality of communication devices. Thereby, apparatuses and methods of traffic shaping are disclosed herein.
1. A computer-implemented method for shaping the output of cells on an output path of a multi-level data transmitting device, the multi-level data transmitting device being configured for regulating the cells from a plurality of input paths to the output path to a network, comprising:
sorting a plurality of queues in each level, each queue including a plurality of cells associated with a communication device, wherein the plurality of queues are arranged according to a weight and a data rate associated with each of the plurality of cells resulting in a plurality of sorted queues of queues, and wherein the sorting is performed based solely on inputs from the prior level;
regulating an aggregate output of cells from each sorted queue of queues based upon the data rates of the plurality of queues of the each sorted queue of queues; and
scheduling the regulated aggregate output of cells from each sorted queue of queues based upon a weight of the each sorted queue of queues, such that the scheduled output is coupled to the output path of each respective level to the next level;
wherein the scheduled output conforms to a plurality of characteristics of network connections, such that the network is efficiently used to carry the cells from the plurality of input paths to a plurality of communication devices.
2. A method as claimed in claim 1 , wherein said plurality of input paths represent virtual connections.
3. A method as claimed in claim 1 , wherein said plurality of input paths represent input ports.
4. A method as claimed in claim 1 , wherein the data transmitting device is capable of outputting data encapsulated in at least one of cells and data packets.
5. A method as claimed in claim 1 , wherein the data transmitting device is an ATM switch.
6. A computer-implemented method for shaping the output of cells on an output path of a multi-level data transmitting device, the multi-level data transmitting device being configured for regulating the cells from a plurality of input paths to the output path to a network, comprising:
sorting a plurality of queues in each level, each queue including a plurality of cells associated with a communication device, wherein the plurality of queues are arranged according to a weight and a data rate associated with each of the plurality of cells resulting in a plurality of sorted queues of queues, and wherein the sorting is performed based solely on inputs from the prior level;
regulating an aggregate output of cells from all sorted queue of queues based upon the data rates of the plurality of queues of the each sorted queue of queues; and
scheduling the regulated aggregate output of cells from each sorted queue of queues based upon a weight of the each sorted queue of queues, such that the scheduled output is coupled to the output path of each respective level to the next level;
wherein the scheduled outputs to a plurality of characteristics of network connections, such that the network is efficiently used to carry the cells from the plurality of input paths to a plurality of communication devices, the plurality of input paths representing virtual connections.
7. A computer-implemented method for shaping the output of cells on an output path of a data transmitting device as recited in claim 6 , wherein the data transmitting device is capable of outputting data encapsulated in at least one of cells and data packets.
8. A computer-implemented method for shaping the output of cells on an output path of a data transmitting device as recited in claim 6 , wherein the data transmitting device is an ATM switch.
9. A computer-implemented method for shaping the output of cells on an output path of a multi-level data transmitting device, the multi-level data transmitting device being configured for regulating the cells from a plurality of input paths to the output path to a network, comprising:
sorting a plurality of queues in each level, each queue including a plurality of cells associated with a communication device, wherein the plurality of queues are arranged according to a weight and a data rate associated with each of the plurality of cells resulting in a plurality of sorted queues of queues, and wherein the sorting is performed based solely on inputs from the prior level;
regulating an aggregate output of cells from all sorted queue of queues based upon the data rates of the plurality of queues of the each sorted queue of queues; and
scheduling the regulated aggregate output of cells from each sorted queue of queues based upon a weight of the each sorted queue of queues, such that the scheduled output is coupled to the output path of each respective level to the next level;
wherein the scheduled output conforms to a plurality of characteristics of network connections, such that the network is efficiently used to carry the cells from the plurality of input paths to a plurality of communication devices, the plurality of input paths representing virtual connections, and the data transmitting device is an ATM switch.