Professor Song Tian's team from the School of Cyberspace Security at Beijing Institute of Technology (BIT) has recently made significant breakthroughs in next-generation internet architecture research and high-performance network processing technology. Their work, PtCAM: Scalable High-Speed Name Prefix Lookup using TCAM, has been accepted for full publication at the main conference of ACM SIGCOMM 2025, a top-tier academic conference in the field of computer networks.

ACM SIGCOMM is the most influential academic conference in the field of international computer networks, uniting top scholars and industry experts from around the world and consistently leading the development trends in network architecture and high-performance network technology. Each year, only about 60 papers are accepted globally, and the selected works are recognized as having the potential to be "written into textbooks".

This paper marks the first time that BIT, as the primary institution, has had a research work accepted at the main conference of ACM SIGCOMM, with all three authors being faculty members and students from the university. This signifies a groundbreaking advancement for BIT on the international stage of top-tier academic computer network research, indicating that BIT has officially entered a core research area long dominated by European and American scholars.

Professor Song Tian and Special Associate Researcher Yang Yating from the School of Cyberspace Security will attend the conference in Portugal to deliver an oral presentation, showcasing BIT's latest research achievements in next-generation internet architecture to leading scholars in the global network research community.

The paper addresses the core technical bottleneck of "efficient network packet forwarding" in new internet architectures by innovatively proposing the Patricia-TCAM (PtCAM) architecture. Experimental results demonstrate that PtCAM achieves significant breakthroughs in both scalability and query performance. It approaches the theoretical limits of TCAM devices in terms of throughput and can be directly deployed on existing equipment such as current line cards, offering both theoretical significance in performance breakthroughs and practical value for commercial deployment.

This achievement provides a new perspective and feasible high-efficiency solution for research on next-generation internet routers, content distribution gateways, and edge network computing platforms. It is expected to support technological innovation and independent breakthroughs in the field of next-generation internet infrastructure in China.

Paper details: Tian Song, Tianlong Li, Yating Yang. 2025. PtCAM: Scalable High-Speed Name Prefix Lookup using TCAM. In ACM SIGCOMM 2025 Conference (SIGCOMM ’25), September 8–11, 2025, Coimbra, Portugal.