The Department of Defense, specifically the Naval Research Laboratory (NRL), is seeking to modify an existing contract for Research and Development Efforts focused on High Performance Computing. This modification aims to ensure continuity of specialized Research, Development, Testing, and Evaluation (RDT&E) services for the Information Technology Division, enhancing overall computer network performance across various layers of the network stack. The services are critical for improving the efficiency and effectiveness of the network enterprise, extending from tactical edge operations to the High Performance Networking Center. The contract modification will extend the performance period by six months, with the new estimated dates running from September 29, 2024, to March 28, 2025. Interested parties should note that this action is being pursued on a sole-source basis, and further inquiries can be directed to the NRL.