What is InfiniBand primarily used for?

InfiniBand is primarily recognized as a communication standard for high-speed data transfer. It is designed to provide scalable and efficient communication between systems, especially in environments requiring high bandwidth and low latency, such as data centers and high-performance computing (HPC) clusters. InfiniBand enables multiple channels of communication and offers advanced features like congestion control and support for Quality of Service (QoS) mechanisms, making it ideal for workloads that demand fast and reliable data exchange.

The focus on high-speed data transfer is a critical component of InfiniBand, as it often operates at speeds exceeding 100 Gbps, significantly outperforming traditional networking solutions. This capability makes it well-suited for applications like scientific simulations, large-scale data processing, and cloud computing infrastructures.

Other options, while they represent different types of communication protocols or standards, do not accurately describe the primary function of InfiniBand.