Analysis of network performance
First Claim
1. A method for testing of a communication network, using a plurality of traffic agents coupled to communicate via the network, the method comprising:
- transmitting a sequence of data packets via the network from a first one of the traffic agents to a second one of the traffic agents;
creating a record of the packets in the sequence that were not received at the second traffic agent; and
assessing a relative irregularity in the occurrence of packet loss, based on the record.
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Accused Products
Abstract
A method for testing of a communication network, using a plurality of traffic agents coupled to communicate via the network. The method includes transmitting a sequence of data packets via the network from a first one of the traffic agents to a second one of the traffic agents and recording arrival characteristics of the packets in the sequence, responsive to receiving the packets at the second traffic agent. The arrival characteristics of different packets in the sequence are compared so as to determine a measure of variability in transmission of the packets via the network.
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Citations
12 Claims
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1. A method for testing of a communication network, using a plurality of traffic agents coupled to communicate via the network, the method comprising:
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transmitting a sequence of data packets via the network from a first one of the traffic agents to a second one of the traffic agents;
creating a record of the packets in the sequence that were not received at the second traffic agent; and
assessing a relative irregularity in the occurrence of packet loss, based on the record. - View Dependent Claims (2)
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3. A method for testing of a communication network, using a plurality of traffic agents coupled to communicate via the network, the method comprising:
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transmitting a sequence of data packets via the network from a first one of the traffic agents to a second one of the traffic agents;
determining an order of arrival of the packets at the second traffic agent; and
comparing the order of arrival to an order in which the packets were transmitted. - View Dependent Claims (4)
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5. A method for testing of a communication network, using a plurality of traffic agents coupled to communicate via the network, the method comprising:
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transmitting a first sequence of data packets via the network from a first one of the traffic agents to a second one of the traffic agents;
transmitting a second sequence of data packets via the network from the second one of the traffic agents, responsive to receiving the data packets in the first sequence, to a third one of the traffic agents;
recording arrival characteristics of the packets in the second sequence, responsive at the third traffic agent; and
comparing the arrival characteristics of different packets in the sequence so as to determine a measure of variability network in transmission of the packets via the network.
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6. Apparatus for testing of a communication network, comprising:
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a first traffic agent, coupled to transmit a sequence of data packets via the network; and
a second traffic agent, coupled to receive the data packets transmitted by the first traffic agent and to record, responsive to receiving the data packets, an indication of the packets in the sequence that were lost in transmission, wherein a relative irregularity in the occurrence of packet loss is assessed based on the indication. - View Dependent Claims (7)
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8. Apparatus for testing of a communication network, comprising:
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a first traffic agent, coupled to transmit a sequence of data packets via the network; and
a second traffic agent, coupled to receive the data packets transmitted by the first traffic agent and to record, responsive to receiving the data packets, an order of arrival of the packets at the second traffic agent, wherein a measure of discrepancy is determined between the order of arrival and an order in which the packets were transmitted. - View Dependent Claims (9)
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10. Apparatus for testing of a communication network, comprising:
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a first traffic agent, coupled to transmit a first sequence of data packets via the network;
a second traffic agent, coupled to receive the data packets transmitted by the first traffic agent and to transmit, responsive to receiving the data packets in the first sequence, a second sequence of data packets via the network to a third traffic agent; and
a third traffic agent, coupled to receive the data packets transmitted by the second traffic agent and to record, responsive to receiving the data packets, arrival characteristics of the packets in the second sequence, wherein the arrival characteristics of different packets are compared so as to determine a measure of variability in transmission of the packets via the network.
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- 11. A computer software product for testing of a communication network, the product comprising a computer-readable medium containing program instructions, which instructions, when executed by first and second computers coupled to communicate via the network, cause the first computer to transmit a sequence of data packets via the network to the second computer, and further cause the second computer to receive the data packets and to record arrival characteristics of the received packets, wherein the arrival characteristics of different packets in the sequence are compared so as to determine a measure of variability in transmission of the packets via the network, wherein the measure of variability is a measure relating to a quality selected from a group of qualities consisting of changes in packet transmission delay, loss of transmitted packets and an order in which transmitted packets are received.
Specification