Performance Test Terminology for EtherNet/IP Devices - ODVA

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Performance Test Terminology for EtherNet/IP DevicesDiscussion:Protocol Analyzers are usually software packages capable of decoding all theprotocols in a network packet. They allow the individual portions of the packet to beanalyzed separately and in protocol specific terms instead of trying to interpret thebits or hex-code equivalent. They are often bundled with network analyzerfunctionality so they can capture packets and analyze the timing of the individualpackets.Examples:Frontline Test Equipment’s NetDecoderEtherealSee Also:Network Analyzer3.6 Test EquipmentDefinition:Any equipment used during the performance tests to stimulate, record, or control thetest.Discussion:Any device used during the test that is not specifically the DUT or NetworkInfrastructure Equipment is considered Test Equipment. Test equipment may consistof more than one device if a complex test is to be performed.Examples:Network AnalyzerTraffic GeneratorProtocol AnalyzerProgrammable Logic Controller (PLC)Distributed/Remote Input/Output BlockLaptop ComputerSee Also:Traffic GeneratorNetwork AnalyzerProtocol Analyzer3.7 Traffic GeneratorDefinition:A device capable of generating network packets during the test.Discussion:Traffic generators will control the flow of traffic during the test. They provide thestimulus that other devices react to. These devices may produce industrial specificnetwork traffic or background traffic used to determine the performance of the DUT.Before any test is conducted, the performance of the traffic generator must beunderstood. If it is a dedicated traffic generating device, the performance is probablyMarch 14, 2005 8 PUB00080R11
Performance Test Terminology for EtherNet/IP Devicesorders of magnitude better than the DUT, which should not affect the results of thetests. Other devices that do not include such dedicated hardware or are themselvesindustrial devices may have performance characteristics that are similar to the DUT.These performance characteristics need to be accounted for when analyzing theresults of any test conducted.Examples:Spirent’s SmartBitsIxia’s 400T SystemProgrammable Logic Controller (PLC)Distributed/Remote Input/Output BlockLaptop ComputerSee Also:Test Equipment4 Other Terms4.1 UnloadedThe test is conducted with no background traffic on the network.4.2 LoadedThe test is conducted with background applied to the network.4.3 Within-SpecThe test is conducted within the manufacturer’s specifications.4.4 Outside-SpecThe test is conducted outside the manufacturer’s specifications.March 14, 2005 9 PUB00080R11
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Performance Test Terminology for EtherNet/IP Devices - ODVA

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