Method of collecting information about test devices in a network
First Claim
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1. A method comprising:
- capturing, by a test device, a packet being transmitted from a source device to a destination device via a network,the packet being transmitted after initial routable network addresses are identified, the initial routable network addresses are used to discover initial test devices, information associated with destination addresses are collected from packets passing through the initial test devices, and destination address, of the destination addresses, is determined to be a routable network address,the test device being an additional test device different than the initial test devices,the packet including the destination address,the destination address identifying the destination device, andthe destination device being different from the test device;
storing, by the test device and based on capturing the packet, the destination address;
identifying, by the test device and after storing the destination address, a pattern in the packet;
determining, by the test device and based on identifying the pattern in the packet, that the packet is a discovery packet that is being sent to discover the test device;
constructing, by the test device and based on determining that the packet is the discovery packet, an information packet that includes an identifier of the test device; and
inserting, by the test device, the information packet into the network.
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Abstract
A method of collecting information about a plurality of test devices connected in a network is provided. The method includes: identifying routable network addresses within a plurality of the network addresses, and sending discovery packets to the plurality of routable network addresses, receiving responses from the test devices, obtaining the information about the test devices, and storing the information so as to associate, for each of the test devices, the test-device information with at least one of the routable network addresses. The routable network addresses are stored in non-volatile memory for repeated use in re-discovery of the test devices in the network.
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Citations
20 Claims
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1. A method comprising:
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capturing, by a test device, a packet being transmitted from a source device to a destination device via a network, the packet being transmitted after initial routable network addresses are identified, the initial routable network addresses are used to discover initial test devices, information associated with destination addresses are collected from packets passing through the initial test devices, and destination address, of the destination addresses, is determined to be a routable network address, the test device being an additional test device different than the initial test devices, the packet including the destination address, the destination address identifying the destination device, and the destination device being different from the test device; storing, by the test device and based on capturing the packet, the destination address; identifying, by the test device and after storing the destination address, a pattern in the packet; determining, by the test device and based on identifying the pattern in the packet, that the packet is a discovery packet that is being sent to discover the test device; constructing, by the test device and based on determining that the packet is the discovery packet, an information packet that includes an identifier of the test device; and inserting, by the test device, the information packet into the network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising:
a test device to; capture a packet being transmitted to a destination device via a network, the packet being transmitted after initial routable network addresses are identified, the initial routable network addresses are used to discover initial test devices, information associated with destination addresses are collected from packets passing through the initial test devices, and a destination address, of the destination addresses, is determined to be a routable network address, the test device being an additional test device different than the initial test devices, the packet including the destination address, the destination address identifying the destination device, and the destination device being different from the test device; store, based on capturing the packet, the destination address; identify a pattern in the packet; determine, based on identifying the pattern in the packet, that the packet is a discovery packet that is being sent to discover the test device; construct, based on determining that the packet is the discovery packet, an information packet that includes an identifier of the test device; and insert the information packet into the network. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A test device comprising:
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a memory; and one or more processors to; capture a packet being transmitted from a source device to a destination device via a network, the packet being transmitted after initial routable network addresses are identified, the initial routable network addresses are used to discover initial test devices, information associated with destination addresses are collected from packets passing through the initial test devices, and a destination address, of the destination addresses, is determined to be a routable network address, the test device being an additional test device different than the initial test devices, the packet including the destination address, and the destination address identifying the destination device; identify a pattern in the packet; determine that the packet is a discovery packet based on identifying the pattern in the packet; construct, based on determining that the packet is the discovery packet, an information packet that includes an identifier of the test device; and insert the information packet into the network. - View Dependent Claims (17, 18, 19, 20)
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Specification