Experimentation has played a very important role in advancing research in computing. This workshop will bring together researchers and technical experts to share experiences and advance the state of the art in experimental research in areas such as networking, distributed systems and cloud computing. CNERT 2014 is a one-day event held in conjunction with the 22nd IEEE International Conference on Network Protocols (ICNP 2014). CNERT 2014 aims to inspire researchers to use testbeds in novel and interesting ways as a means to validate research ideas. Experiments may be from areas including, but not limited to: Experiment design and deployment, Instrumentation and Measurement, Evaluation and analysis of experiment data, Design for repeatability and reproducibility, Creation and sharing of datasets of broad interest to the community, Tools and services for testbed users and operators, Large-scale experiments, Experiments on federated testbeds, Testbed implementation and deployment. Of particular interest are experiments on publicly available testbeds such as GENI, PlanetLab, Emulab, Orbit, Ophelia, and so on. Authors are encouraged to include references to detailed experiment setups that will enable others to extend their work. Presentations at the workshop will be strongly encouraged to include a demonstration. Authors should indicate in their papers if they think that such a demonstration is feasible. All papers will go through a thorough review process by experienced researchers who will provide constructive feedback.