Single‑Core vs Multi‑Core

A single‑core NSv XS deployment is highly efficient and well suited for targeted environments. However, scaling to multi‑core configurations should be evaluated when:

• SSL/TLS decryption requirements increase significantly
• Concurrent VPN sessions grow substantially
• Sustained bandwidth demands rise
• The deployment becomes central to production-critical infrastructure

Right‑sizing enables organizations to deploy single core firewalls for focused use cases while preserving a clear upgrade path to multi core models as inspection depth and bandwidth demands evolve.

Virtualized security is not about replicating physical hardware—it is about architectural precision.

Single‑core ( NSv XS)	Multi‑core (NSv S, M, and L)
A single‑core virtual firewall deployed on Proxmox represents a lean, efficient security building block for edge, branch, and distributed environments. This approach delivers full next‑generation inspection capabilities while preserving valuable compute resources and maintaining consistency with modern, decentralized infrastructure design.	Multi‑core NSv models (NSv S, M, and L) are designed for environments where inspection depth, concurrent session counts, and throughput demands exceed single-core capacity. These models dedicate one core to management functions and allocate remaining cores to the data plane—enabling parallel packet processing, higher SSL/TLS decryption throughput, and increased VPN tunnel scalability.

For details on deploying NSv on Proxmox, see Installing the NSv Series on Ubuntu-Proxmox.