Document Type

Article

Abstract

The Science Demilitarized Zone (Science DMZ) is a specialized network designed to facilitate the transfer of large-scale scientific data. One of the key elements of the Science DMZ is perfSONAR, an active performance measurement device that monitors end-to-end paths over multiple domains. Although versatile, perfSONAR faces limitations such as restricted visibility of events and coarse-grained measurements. This paper proposes a scheme that integrates P4 programmable data plane (PDP) switches with perfSONAR. P4 PDP switches are passively installed and operate on real-time traffic copies, providing flexibility to collect fine-grained custom measurements and report events in the data plane. This integration enables perfSONAR to collect per-flow granular statistics of actual traffic, identify a broader range of networking issues, and enhance visibility while reducing the overhead of active tests. Additionally, the scheme uses an adaptive linear prediction (LP) model that dynamically adjusts the rate of reports sent from the P4 PDP switch to perfSONAR, minimizing the storage and processing needed for the latter. Experimental results show that the system reduces the number of reports by a factor of five while maintaining a small and configurable relative mean error (RME).

Digital Object Identifier (DOI)

https://doi.org/10.1016/j.jnca.2025.104263

Rights

© 2025 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

APA Citation

Mazloum, A., Kfoury, E., AlSabeh, A., Gomez, J., & Crichigno, J. (2025). Enhancing visibility on a science DMZ with P4-perfSONAR. Journal of Network and Computer Applications, 242, 104263.https://doi.org/10.1016/j.jnca.2025.104263

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