Keysight Technologies, Inc.

Extreme Networks, Inc.

James Robert Bauder

Alon Regev

Erik R Swenson

Kingshuk Mandal

Tanuman Bhaduri

Siddharth Khattar

Pradosh Tapan Datta

Khoi D Vu

Kathleen E Cimino

Kevin S Fatherree

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 are disclosed. According to one method, a device under test including at least one processor simulates frame preemption by generating a plurality of simulated preempted frame fragments and an express frame. The test device deterministically orders, independently from MAC merge sublayer fragmentation and ordering, the simulated preempted frame fragments and the express frame for transmission to the DUT. The test device transmits the simulated preempted frame fragments and the express frame to the DUT in an order corresponding to the deterministic ordering. The test device receives a response of the DUT to the simulated preempted frame fragments and the express frame. The test device determines, based on the response of the DUT, whether the DUT operates in accordance with specifications for frame preemption.

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 method of and system for transferring overhead data from a sender to a receiver over a serial interface is provided. The overhead data is transferred over one or more data lines of the interface during one or more time periods in which excess bandwidth is available on the one or more data lines or while the transfer of the overhead data does not substantially impede the throughput of the payload transfer.

Method of and system for transferring overhead data over a serial interface

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Chatsworth, CA, United States of America

James Robert Bauder