Methods, systems, and computer readable media for testing effects of simulated frame preemption and deterministic fragmentation of preemptable frames in a frame-preemption-capable network

A system for testing effects of simulated frame preemption and deterministic frame fragmentation on a device under test (DUT) in a frame-preemption-capable network, the system comprising:

• a network test tool including at least one processor;
• a deterministic frame preemption and fragmentation simulator implemented by the network test tool, is configurable to simulate frame preemption by receiving input from a test operator for deterministically setting an order of simulated preempted frame fragments and an express frame in a single sequence including the simulated preempted frame fragments and the express frame and, in response to the input:
• generate the single sequence including the simulated preempted frame fragments and the express frame, wherein generating the single sequence includes deterministically ordering, independently from MAC merge sublayer fragmentation and in the order specified by the test operator, the simulated preempted frame fragments and the express frame in the single sequence for transmission to the DUT, and
• transmit the single sequence of the simulated preempted frame fragments and the express frame to the DUT;
• and
• a frame preemption response verification module implemented by the network test tool receives a response of the DUT to the single sequence of simulated preempted frame fragments and the express frame and determines, based on the response of the DUT, whether the DUT operated in accordance with specifications for frame preemption.

A non-transitory computer readable medium having stored thereon executable instructions that when executed by a processor of a computer control the computer to perform steps comprising:

• simulating frame preemption by receiving input from a test operator for deterministically setting an order of simulated preempted frame fragments and an express frame in a single sequence including the simulated preempted frame fragments and the express frame and, in response to the input:
• generating the single sequence including the simulated preempted frame fragments and an express frame, wherein generating the single sequence includes deterministically ordering, in the order specified by the test operator and independently from medium access control (MAC) sublayer fragmentation, the simulated preempted frame fragments and the express frame in the single sequence for transmission to a device under test (DUT);
• transmitting the simulated preempted frame fragments and the express frame to the DUT in an order corresponding to the deterministic ordering;
• receiving a response of the DUT to the single sequence including the simulated preempted frame fragments and the express frame;
• and
• determining, based on the response of the DUT, whether the DUT operated in accordance with specifications for frame preemption.