OIF’s New Projects: Autonomous Path Startup, 1.6T MACsec, and 12.8T NPO

OIF used its Q2 2026 Technical and MA&E Committees Meeting in Malta to advance several key initiatives aimed at next-generation AI, cloud, and optical transport networks. More than 175 industry participants gathered to launch three new projects, release CMIS 5.4, and approve publication of the Energy Efficient Interfaces (EEI) High-Density Connector Framework. The work spans module management, encrypted transport, near-package optics (NPO), and high-density electrical interconnects, reflecting growing industry demands for higher bandwidth, lower power consumption, and improved interoperability.

Among the new efforts, OIF launched a CMIS-Autonomous Path Start Up (APSU) Supplement Implementation Agreement to define management registers for APSU functionality in CMIS-compliant modules. The organization also initiated a project to establish MACsec support guidelines for 1.6T pluggable optical modules used in hyperscale environments, addressing growing requirements for encryption as packet-switch architectures extend deeper into metro and data center interconnect networks. In parallel, OIF started work on a new 12.8Tbps Near-Package Optics Module Implementation Agreement covering both 12.8Tbps and 6.4Tbps NPO modules based on 200G/lane signaling.

The NPO initiative builds upon OIF’s earlier 3.2T co-packaged optics work and seeks to define interoperable electrical, mechanical, thermal, and optical interfaces for next-generation switches and AI accelerators. The specification is expected to address liquid cooling, power delivery, laser integration, connector technologies, and module form factors. OIF also released CMIS 5.4 and approved publication of its EEI High-Density Connector Framework, which evaluates alternatives to traditional PCB edge connectors as AI and HPC systems push bandwidth density beyond the limits of existing interconnect technologies.

• New APSU project defines CMIS registers for autonomous path startup management and debugging.

• New MACsec initiative addresses secure 1.6T pluggable optics deployments in hyperscale and metro environments.

• New 12.8Tbps NPO Module project targets interoperable near-package optics based on 200G/lane signaling.

• CMIS 5.4 released as the latest update to the industry’s common optical module management framework.

• EEI High-Density Connector Framework approved for publication, addressing future electrical and optical interconnect requirements.

• Guest presentation by the European Space Agency highlighted advances in optical communications for space networking.

“OIF’s Q2 meeting reflected the rapid pace and intensity of the work happening across the optical networking ecosystem right now,” said Karl Bois, OIF Technical Committee Vice Chair at Broadcom. “As AI networks scale up, scale out and scale across new architectures, our members are focused on the practical implementation work required to increase bandwidth, improve energy efficiency, reduce integration risk and move next-generation systems toward deployment.”

🌐 Analysis

The most significant development may be OIF’s decision to launch a formal 12.8Tbps NPO specification effort. The industry is increasingly exploring architectures that move optics closer to switching silicon to address power and reach limitations associated with electrical SerDes operating at 200G/lane and beyond. While co-packaged optics remains under development, near-package optics has emerged as an intermediate approach that offers many of the same electrical benefits while maintaining serviceability and operational flexibility.

The new MACsec initiative also highlights a growing requirement from hyperscale operators to integrate security directly into next-generation optical modules. As 1.6T pluggables move from data center fabrics into metro and DCI environments, encryption is becoming a standard requirement rather than an optional feature. Meanwhile, the EEI connector framework reflects a broader industry effort involving switch vendors, optical suppliers, and connector manufacturers to prepare for future 102.4Tbps and 204.8Tbps switching platforms where traditional edge-card connectors may no longer meet bandwidth and power-density requirements.