Keep pulling the thread on Kent Lusted.
Kent Lusted is the chair of the IEEE 802.3 400 gigabit signaling study group.
The development of 400 gigabit per second per lane SerDes standards is primarily driven by the evolution of artificial intelligence and high-performance computing systems.
In modern AI systems, GPU-to-GPU and XPU-to-XPU communication has become the primary determinant of application performance, model efficiency, and overall cluster utilization.
The IEEE 802.3's 400G per lane Ethernet standard is part of an architectural shift where electrical and optical technologies must be closely integrated to achieve the required reach and density for AI systems.
The IEEE 802.3 400 gigabit per second per lane signaling study group was initiated in March of 2026 to develop project documentation for the next rate of Ethernet.
The IEEE P802.3DG task force, which is working on 200G per lane signaling, is establishing the foundational building blocks for the future 400G per lane standard.
A central challenge for the IEEE 802.3 400G per lane standard is managing the shrinking system margin caused by increased stress on physical components like package escape, board routing, and connectors.
Kent Lusted has been an active contributor and member of the IEEE 802.3 Ethernet PHY Standards Development Leadership Team for more than 15 years.
Kent Lusted is the current electrical track chair for the IEEE P802.3 DJ task force.
The IEEE 802.3's development of 400G per lane signaling is intended to preserve system efficiency in AI clusters by increasing bandwidth per lane, preventing accelerators from sitting idle while waiting for data.
Kent Lusted expects that the IEEE 802.3 project for 400G per lane signaling could transition from a study group to a task force in late 2026.
The overall IEEE 802.3 project for 400G per lane Ethernet is expected to extend into the latter part of the 2020s decade.