Ixia

Roger Standridge

Clifford Lee Hannel

Jan Olderdissen

Doug Schafer

Hardware time stamping and synchronized data transmission disclosed. In a method, a reference time stamp and a local time stamp are obtained. A synchronization offset is prepared based on the local time stamp and the reference time stamp. Instructions are received to send a plurality of data units at a specified time. The plurality of data units are sent at the specified time based on referring to a local time obtained from a local clock and the synchronization offset to simultaneously send a packet storm comprising the plurality of data units. The method may be achieved by a network communications unit on a plurality of network cards included in a network testing system.

Hardware time stamping and synchronized data transmission

There are disclosed methods, computer readable media, and apparatus for generation of processed traffic. Traffic, including plural data units for transmission to a first endpoint, may be provided. The provided traffic may be processed and held until a predefined amount of processed traffic has accumulated. The held traffic may then be released for transmission to the first endpoint.

Generating traffic from a predetermined amount of processed traffic

Hardware time stamping is disclosed. In a method, a transmit time stamp may be added to an outgoing data unit in hardware prior to transmitting the outgoing data unit over a communications medium. The outgoing data unit may be received from a processor and may be intended for a node. The outgoing data unit may be transmitted over the communications medium to the node. An incoming data unit may be received over the communications medium. A receive time stamp may be added to the incoming data unit in hardware before the incoming data unit is provided to the processor. The method may be achieved on a hardware device included on a board in a network testing system.

Hardware time stamping and processor synchronization

There is disclosed methods and apparatus for generation of processed traffic. An environment may include a traffic generator, a network, a gateway and a traffic receiver. The abilities of the gateway may be tested by generating traffic from the traffic generator and transmitting it to the traffic receiver via the network and the gateway. Time constraints of processor-intensive processing may be avoided by holding or looping back traffic from the traffic generator so that the traffic may be transmitted as needed for a test.

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Los Angeles, CA, United States of America

Roger Standridge