Building Modern Data Centers with the FS N5850-48X6C 10G Leaf Switch
Dec 10, 20251 min read
As digital transformation becomes the core driver of enterprise development, data centers must achieve breakthroughs in performance, reliability, automation, and scalability. For highly integrated organizations building high-performance networks and evolving toward multi-cloud architectures, the N5850-48X6C 10G leaf switch is the right choice, purpose-built for data center and data center interconnect (DCI) deployments.
FS N5850-48X6C: 10G PicOS® Data Center Leaf Switch
The N5850-48X6C is a 10G switch positioned at the data center leaf layer, equipped with 48×10Gb RJ45 copper downlink ports and 6 flexible 100Gb QSFP28 uplink ports (also configurable as 40Gb QSFP+). It is well-suited for data center leaf roles and DCI deployments, offering L3 gateway capabilities to enable seamless routing between virtualized and bare-metal servers.
Combining exceptional scalability and reliability, the N5850-48X6C runs PicOS® and supports commonly used data center features such as EVPN-VXLAN and MLAG. Based on its hardware and software capabilities, this article will analyze the switch across four dimensions: cost, security, automation, and scalability.

Enhancing Cost Efficiency Through Hardware and Software Innovation
Hardware Reduces Operational Costs
The N5850-48X6C leaf switch fits most leaf-layer topologies built primarily around 10G. Its high-speed, low-latency ports support fast data transmission, meeting the needs of data-intensive applications and high-performance computing. Meanwhile, its low-power design optimizes energy usage and reduces thermal pressure, effectively lowering data center operating costs.
Equipped with 4+1 redundant hot-swappable intelligent fans high-availability hardware, it intelligently adjusts fan speed for efficient cooling and energy savings, contributing to the development of a greener, low-carbon data center environment.

Stable and Reliable Software
With PicOS®, organizations can build highly elastic, reliable, and programmable networks. This enables more efficient network operations at a lower total cost of ownership, significantly reducing both CAPEX and OPEX.
A perpetual unified license covers the full PicOS® feature set, streamlining procurement and management while lowering long-term costs.
FS provides five years of standard PicOS® maintenance and support services. During each PicOS® support period, FS delivers comprehensive network technical services, including PicOS® configuration or operational support, bug fixes, software updates, and upgrades. This ensures reliable and efficient support throughout the network lifecycle, minimizing losses caused by service interruptions.
Reducing Network Risk Through Compatibility and Security
High Compatibility
PicOS® adopts industry-standard protocols, ensuring backward compatibility with switches from brands such as Cisco, Juniper, Arista, HPE, and Aruba within existing network architectures. This allows customers to avoid being forced into large-scale, one-time network upgrades. Instead, they can upgrade gradually according to budget, reducing the risk of interoperability failures with the current environment.
Network Link Protection
Featuring a 1+1 redundant power supply design, the switch enables sub-second failover and non-disruptive power module replacement, providing dual protection for network links.

Enhanced Network Security
PicOS® adopts a modular design that supports independent component upgrades and maintenance, along with a dual-partition rollback mechanism that enables rapid recovery to a stable version. Through deep integration with leading Network Access Control (NAC) policy managers, it delivers comprehensive security mechanisms and full IPv4/IPv6 dual-stack support. This establishes a secure access layer aligned with zero-trust principles, ensuring network reliability and availability while significantly reducing security risks.

Strengthening Operations Through Automation and Visibility
Advanced Automation Capabilities
Built on standard programmable interfaces, the N5850-48X6C offers a rich set of standardized APIs and automation tools—such as Python, Ansible, NETCONF, and RESTCONF—to enable automated, flexible network configuration and streamline IT operations.
Automated Configuration and Management
The N5850-48X6C supports the AmpCon-DC management platform, which provides full lifecycle capabilities from Day 0 to Day 2+, automating the entire network lifecycle to simplify design and deployment while delivering closed-loop assurance.
Enables zero-touch provisioning (ZTP) for automated device onboarding and management
Provides automated underlay configuration to accelerate deployment and enhance network reliability
Supports topology auto-discovery to automatically identify and visualize the network structure
Supports Telemetry for real-time performance monitoring, capturing rich network telemetry data, application workload usage, and system configurations to optimize network performance.

Comprehensive Network Visibility
PicOS® provides full network visibility through SNMP and sFlow, simplifying the development and integration of network applications while making the network easier to deploy, manage, and secure. Additionally, gNMI enables efficient and effective open telemetry.
Achieving Scalability Through Flexible Architectural Design
Scalable Leaf-Spine Architecture
The N5850-48X6C can function as a leaf switch and connect to the N8560-32C spine switch to form a low-latency, highly scalable distributed network architecture. This design is ideal for large data centers that require horizontal expansion.

Network Architecture Scalability
PicOS® switches support a comprehensive set of Layer 2 and Layer 3 capabilities—including foundational features such as MLAG, BGP, and OSPF, as well as advanced virtualization technologies like EVPN-VXLAN. These capabilities enable seamless scaling within Overlay/IP-Fabric architectures to meet the needs of modern workloads such as cloud computing and virtualization, helping enterprises build flexible and highly scalable network infrastructures.
Why Choose 10G N5850-48X6C Leaf Switch?
The FS N5850-48X6C leaf switch is designed for modern data centers, featuring the Broadcom Trident 3 chipset and PicOS® operating system. It delivers high throughput, low latency, and a rich set of L2/L3 features within a compact and efficient architecture, making it ideal for building new leaf-spine networks or upgrading existing infrastructure. By combining PicOS® with the AmpCon-DC management platform, this switch enhances data center operations through intelligent automation, significantly simplifying network management.
FS is a global leader in ICT network products and solutions, serving over one million users across more than 200 countries. Visit FS.com to explore more high-quality PicOS® 10G data center switches and accelerate your network transformation today.