The Niagara Networks 4540 is a hardware Network Packet Broker (NPB) designed for high-density 100G environments in on-premises and private data center networks. It serves SOC and NOC operations by providing full traffic visibility, control, and tool efficiency optimization across 10/25/100G network interfaces. The 4540 is built on a 3.2 Tbps non-blocking architecture that delivers lossless, line-rate traffic to connected monitoring and security tools. It is powered by Niagara's FabricFlow™ technology, which enables advanced traffic filtering, aggregation, replication, and load balancing. Core packet processing capabilities include: - Traffic aggregation, replication, and multi-level filtering - Packet slicing, de-duplication, and tunnel awareness - Flow-aware policy enforcement - Load balancing across monitoring and security tools The 4540 supports centralized management through Niagara's NVC (Network Visibility Controller), described as a single-pane-of-glass orchestration layer for the visibility infrastructure. It also supports Open Visibility integration, enabling hosting of third-party applications directly on the platform. The product is manufactured in Silicon Valley, USA, and is part of Niagara Networks' broader visibility portfolio that includes Network TAPs, Bypass Switches, and virtualized visibility solutions. It is intended to simplify complex network architectures and improve the efficiency and accuracy of tools used for performance monitoring and security analysis.