Method and system for network monitoring using signature packets
First Claim
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1. A method of monitoring a network with a test device connected to the network, comprising:
- monitoring a plurality of packets which pass through the test device, comparing a predefined field of each of the plurality of packets to a predefined pattern so as to identify signature packets, evaluating whether the signature packets satisfy a predefined condition, and, when the predefined condition is satisfied, sending a notification to a user, wherein each of the signature packets includes at least two QoS fields, and the evaluating step comprises determining whether a combination of values in the QoS fields is a permitted combination.
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Abstract
A method of monitoring a network with a test device connected to the network includes monitoring a plurality of packets which pass through the test device, comparing a predefined field of each of the plurality of packets to a predefined pattern so as to identify signature packets, evaluating whether the signature packets satisfy a predefined condition, and, if the predefined condition is satisfied, sending a notification to a user. A system implementing the method is provided.
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Citations
6 Claims
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1. A method of monitoring a network with a test device connected to the network, comprising:
- monitoring a plurality of packets which pass through the test device, comparing a predefined field of each of the plurality of packets to a predefined pattern so as to identify signature packets, evaluating whether the signature packets satisfy a predefined condition, and, when the predefined condition is satisfied, sending a notification to a user, wherein each of the signature packets includes at least two QoS fields, and the evaluating step comprises determining whether a combination of values in the QoS fields is a permitted combination.
- View Dependent Claims (2, 3, 4)
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5. A method of monitoring a network with a test device connected to the network, comprising:
- monitoring a plurality of packets which pass through the test device, comparing a predefined field of each of the plurality of packets to a predefined pattern so as to identify signature packets, evaluating whether the signature packets satisfy a predefined condition, and, when the predefined condition is satisfied, sending a notification to a user, wherein the step of evaluating comprises determining whether a difference between a number of the signature packets identified at the test device and a number of signature packets identified at another test device is above a predefined threshold.
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6. A method of monitoring a network with a test device connected to the network, comprising:
- monitoring a plurality of packets which pass through the test device, comparing a predefined field of each of the plurality of packets to a predefined pattern so as to identify signature packets, evaluating whether the signature packets satisfy a predefined condition, and, when the predefined condition is satisfied, sending a notification to a user, wherein the step of evaluating comprises determining whether a delay between receiving one of the signature packets at the test device and at another test device is above a predefined threshold.
Specification