Summary
Network appliances handling SD-WAN, load balancing, and web filtering functions require sustained memory bandwidth and efficient I/O to manage high-throughput traffic without CPU bottlenecks. NEXCOM's NSA 5190 addresses these requirements through doubled memory capacity (up to 128GB DDR4), PCIe 4.0 interface support, and the latest Intel Core processors. The 1U appliance design enables deployment in security-focused network architectures where data transfer efficiency directly impacts operational performance.
Problem / Requirements
Cyber security and network virtualization deployments encounter specific performance constraints:
- Memory Bandwidth: Processing large rule sets for firewalling, load balancing, and SD-WAN requires substantial RAM
- I/O Throughput: PCIe interface speed directly affects NIC (network interface card) performance and multiple appliance stacking
- Workload Scaling: Supporting policy-based routing, encryption, and deep packet inspection without CPU throttling
- Forward Compatibility: Future-proofing hardware investment against increasing network speeds and rule complexity
- Thermal Efficiency: Dissipating heat from high-performance processors in standard 1U rackmounts
- Modular Flexibility: Support for various security functions on a single hardware platform
Technical Approach
/table
Challenge | Solution
Memory bandwidth saturation | DDR4 2666/3200 MHz support, doubled to 128GB (4 DIMM slots)
PCIe interface bottleneck | PCIe 4.0 with 2 GB/s per-lane bandwidth (2x Gen3 speed)
I/O latency for packet processing | Backward/forward compatibility with Gen3 and Gen4 NICs
CPU overhead from workloads | Offload acceleration with hardware crypto and QAT support
Multi-function deployment | Latest Intel Core with integrated security extensions
Compact installation footprint | 1U rackmount with efficient thermal design
/endtable
The NSA 5190 combines current-generation Intel Core processor architecture with PCIe 4.0 fabric connectivity. The processor platform includes integrated security instructions (AES-NI, SHA, etc.) and supports dedicated accelerators. DDR4 memory configuration allows sustained throughput for stateful firewall rules, encryption sessions, and VPN tunnels without stalls.
Implementation Notes
Specifications Snapshot
/table
Specification | Detail
Processor | Latest Intel Core series
Memory | Up to 128GB DDR4 (4 DIMM, 2666/3200 MHz)
PCIe Interface | PCIe 4.0 (2 GB/s per lane)
Form Factor | 1U rackmount
Port Count | Multiple 1GbE/10GbE modular options
Accelerators | Crypto offload, QAT support
Power Supply | Redundant PSU available
Operating Temperature | Standard data center range
/endtable
Performance Characteristics
The NSA 5190 architecture supports:
- SD-WAN Functions: Traffic steering, QoS enforcement, and failover across multiple WAN links
- Web Monitoring: Deep packet inspection with protocol analysis and threat detection
- Load Balancing: Distribution of incoming connections across backend servers with persistent session tracking
- Network Virtualization: Multiple isolated network functions running simultaneously via virtualization
Bandwidth comparison versus predecessor:
- PCIe Interface: PCIe 4.0 provides 2 GB/s per lane; predecessors with PCIe 3.0 delivered 1 GB/s per lane
- Memory Access: Doubled DIMM slots (4 vs. 2) eliminate memory bottlenecks in rule-intensive deployments
Deployment considerations:
- NIC Selection: Support for PCIe 4.0 and Gen3 NICs ensures backward compatibility during hardware transitions
- Power Budget: Verify PSU capacity based on processor and NIC configurations
- Cooling: Standard data center airflow adequate for 1U form factor
- Network Topology: Multi-port configurations enable direct attachment to multiple network segments
- Monitoring: Standard BMC/IPMI for out-of-band management and thermal alerting
Key Takeaways
1. Memory Capacity: Doubled DDR4 support (up to 128GB) eliminates memory constraints in stateful packet processing.
2. I/O Efficiency: PCIe 4.0 doubles per-lane bandwidth compared to Gen3, reducing latency in multi-NIC deployments.
3. Heavy Workload Support: Sustained performance under policy-based routing, encryption, and deep packet inspection.
4. Future-Proof Design: Backward-compatible with existing Gen3 hardware while supporting next-generation interfaces.
5. Flexible Architecture: Modular design supports SD-WAN, load balancing, web filtering, and network virtualization on unified hardware.
Contact NEXCOM
For specifications, availability, and technical inquiries, contact NEXCOM via the official website.
