System and method for using network performance information to determine improved measures of path states
First Claim
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1. A method of determining the state of a path in a network, the method being performed by a node of the network, the method comprising:
- measuring a rate of throughput over an interval for at least a portion of the path;
determining a derivation associated with a characteristic of the frames communicated over at least the portion of the path, wherein the associated derivation includes at least an average frame size;
determining a state of congestion of the path in response to the measured rate of throughput and the determined associated derivation; and
controlling network traffic through the at least the portion of the path, the network traffic including at least call routing through the at least the portion of the path.
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Abstract
A method of determining the state of a path in a network includes measuring at a node of the network a rate of throughput over an interval for at least a portion of the path and determining at the node of the network a derivation associated with a characteristic of the frames communicated over at least the portion of the path. The method also includes determining a state of congestion of the path in response to the measured rate of throughput and the determined associated derivation.
468 Citations
19 Claims
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1. A method of determining the state of a path in a network, the method being performed by a node of the network, the method comprising:
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measuring a rate of throughput over an interval for at least a portion of the path; determining a derivation associated with a characteristic of the frames communicated over at least the portion of the path, wherein the associated derivation includes at least an average frame size; determining a state of congestion of the path in response to the measured rate of throughput and the determined associated derivation; and controlling network traffic through the at least the portion of the path, the network traffic including at least call routing through the at least the portion of the path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A session controller comprising:
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a memory operable to store the throughput capacity of a path in a network; a state machine in communication with the memory and operable to receive a measurement of a rate of throughput over an interval for the path, the state machine further operable to receive a derivation associated with a characteristic of frames communicated over the path, wherein the associated derivation includes at least an average frame size; and session control logic operable to modify at least one parameter of a communications session in response to a determined state of congestion; wherein the state machine is further operable to determine the state of congestion of the path in response to the measurement, the throughput capacity, and the associated derivation. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A network device comprising:
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a processor operable to execute a set of instructions; a memory operable to store the set of instructions, wherein the set of instructions are when executed by a processor to; measure at a node of the network a rate of throughput over an interval for at least a portion of the path; determine at the node of the network a derivation associated with a characteristic of the frames communicated over at least the portion of the path, wherein the determined associated derivation includes at least an average packet size of the frames by frame type or an amount of non-payload bits of one or more frames; determine a state of congestion of the path in response to the measured rate of throughput and the determined associated derivation; and control network traffic through the at least the portion of the path, the network traffic including at least call routing through the at least the portion of the path.
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Specification