Description
The Cisco Secure Network Server SNS-3855 is a high-performance, enterprise-grade appliance purpose-built for Cisco Identity Services Engine (ISE) deployments in medium to large environments. Designed to support Universal Zero Trust Network Access (ZTNA), the SNS-3855 delivers the compute power, reliability, and scalability required for modern identity-based network security.
Powered by advanced multi-core AMD processing and high-speed NVMe or self-encrypting SSD storage, the SNS-3855 enables fast authentication, policy enforcement, and real-time monitoring across wired, wireless, VPN, and hybrid networks. It supports flexible role deployment as a Policy Services Node (PSN) or as a combined Policy Administration Node (PAN) and Monitoring & Troubleshooting Node (MnT).
With redundant power supplies, hardware RAID support, and high-availability networking, the Cisco SNS-3855 ensures consistent performance and resilience for mission-critical security operations. It is an ideal foundation for organizations implementing scalable, identity-driven access control with Cisco ISE.
| Specification | Details |
|---|---|
| Product Series | Cisco Secure Network Server 3800 |
| Model | SNS-3855 |
| Platform Purpose | Cisco Identity Services Engine (ISE) |
| Deployment Size | Medium to Large Environments |
| Processor | AMD 24-core, 48-thread CPU |
| Memory | 128 GB DDR5 |
| Storage Options | NVMe or Self-Encrypting SSD (single or multi-disk configurations) |
| ISE Roles Supported | PSN, PAN, MnT (role-based configurations) |
| Maximum Concurrent Endpoints | Up to 100,000 (dedicated PSN) |
| Network Interfaces | 2 × 10GBase-T, 4 × 10G SFP+ |
| RAID Support | Hardware RAID (role-dependent) |
| Power Supplies | Dual redundant hot-swap power supplies |
| Form Factor | 1RU Rack-Mount |
| Security Features | TPM support, encrypted storage options |
| Compatibility | Cisco ISE 3.3 and later |
| Use Case | Zero Trust, NAC, Identity-Based Access Control |
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Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
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