Data center networking market (switches, interconnects, fabric) projected to grow to $139.08 billion by 2031.

The global Data Center Networking Market is projected to grow from USD 55.64 billion in 2025 to USD 139.08 billion by 2031, at a CAGR of 16.5% during the forecast period. This growth is driven by the rapid expansion of hyperscale data centers, increasing deployment of AI and HPC workloads, and rising demand for high-bandwidth, low-latency connectivity. Modern cloud environments require scalable leaf-spine architectures, high-speed switching at 400G/800G and beyond, and advanced routing platforms to efficiently handle massive east-west traffic. The growing integration of AI accelerators and GPU clusters is intensifying the need for high-performance networking fabrics, SmartNICs, and DPUs to optimize workload performance and reduce bottlenecks.

The shift toward software-defined and automated networking architectures is further accelerating market growth. Enterprises and cloud providers are adopting network automation, observability, and programmable networking solutions to improve agility, operational efficiency, and security. Increasing data center investments, sovereign cloud initiatives, and interconnection requirements are driving infrastructure upgrades globally, while industries relying on large-scale digital platforms, edge computing, and hybrid cloud deployments are driving demand for resilient, secure, and scalable data center networking solutions.

InfiniBand switches are expected to register the fastest growth rate during the forecast period, driven primarily by the rapid expansion of AI and HPC workloads. Large-scale AI training clusters, generative AI models, and GPU-intensive computing environments require ultra-low latency, high bandwidth, and efficient east-west traffic handling—capabilities that InfiniBand architectures are purpose-built to deliver. With native RDMA support and optimized GPU-to-GPU communication, InfiniBand significantly reduces latency and improves data transfer efficiency compared to traditional Ethernet-based fabrics. As hyperscale operators and AI infrastructure providers scale deployments from thousands to tens of thousands of accelerators, deterministic performance, advanced congestion control, and predictable latency become critical requirements, positioning InfiniBand switches as the fastest-growing segment within the overall Data Center Networking Market.

Data center switches continue to account for the largest share of the Data Center Networking Market, as they form the backbone of leaf-spine and Clos architectures, facilitating massive east-west traffic flows generated by cloud computing, virtualization, storage networking, and AI workloads. Hyperscale and colocation facilities require high-density switching platforms with 400G and 800G port speeds to support scalable, low-latency environments. Ongoing refresh cycles from legacy 10G/40G environments to higher-speed architectures further strengthen switch demand, ensuring that data center switches maintain the largest market share throughout the forecast period.

North America holds the largest share of the Data Center Networking Market due to the strong presence of hyperscale cloud providers, advanced digital infrastructure, and early adoption of high-performance networking technologies. The region leads in AI and HPC deployments, driving significant demand for 400G and 800G switching, InfiniBand fabrics, and advanced network interface hardware. The high concentration of hyperscale data centers, particularly in the United States, supports continuous infrastructure expansion and large-scale network upgrades. Strong investments in AI research, enterprise cloud transformation, and colocation expansion, combined with supportive regulatory frameworks and significant capital expenditure by leading technology companies, position North America as the dominant regional market throughout the forecast period. Top companies in the Data Center Networking Market include Cisco Systems (US), Arista Networks (US), Huawei Technologies (China), NVIDIA (US), HPE (US), Extreme Networks (Taiwan), and Dell Technologies.