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High Precision Packet Generation in Software Using a Hardware Time Stamp Counter

  • US 20120033562A1
  • Filed: 08/04/2010
  • Published: 02/09/2012
  • Est. Priority Date: 08/04/2010
  • Status: Active Grant
First Claim
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1. A network testing system having at least one network card, the network card including a processor, a memory and a network communications unit, the network testing system coupled with a network, the network testing system having instructions stored thereon which when executed cause the network testing system to perform operations comprising:

  • receiving user selection to create a network testreceiving test information from the user, the test information including a packet transmission rate and packet creation informationcalculating a packet transmission interval based on the packet transmission ratereceiving user selection to execute the network testtransmitting packets specified in the network test over the network at the packet transmission rate, includingpreparing a packet including at least a payload and a header according to the packet creation informationchecking a hardware counter to learn if the packet transmission interval has elapsedwhen the packet transmission interval has elapsed, sending the packet over the network.

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