This is the Meta MetaRoCE Network Adapter
Meta has unveiled a new network adapter designed for high-performance computing at the OCP Summit 2026.
Meta showed a physical OCP NIC 3.0 card at the OCP Summit 2026, representing the company's latest effort to build an open RDMA transport layer.
The new protocol, MetaRoCE, is designed to scale to million-GPU training and run on various network topologies and hardware.
It is built to run on standard commodity Ethernet using ECN and ECMP, without requiring a dedicated switch.
Key features
MetaRoCE includes several advanced features for managing data traffic over a network.
It provides per-path reliability and congestion control to manage data flow efficiently.
The adapter also uses receiver rate hints (RCN) for fast convergence during incast scenarios.
It is tolerant of packet loss and reordering, and a single queue pair can carry multiple streams over multiple network paths.
Hardware and implementation
Meta demonstrated the protocol using the programmable AMD Pensando NIC series, which allowed the implementation without dedicated hardware.
This approach enables Meta to potentially source network components from multiple vendors.
The company aims to create a flexible and scalable network solution for its large-scale AI training infrastructure.
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