Full English Description for Cisco C8400-8N16T

Important Pre-Note

Official Cisco C8400 G2 series are fixed-port 1RU aggregation routers without NIM/SM modular slots (NIM/SM architecture only applies to C8200/C8300). The PIDC8400-8N16Tis customized naming for sales catalog use: 8 NIM expansion slots, 16 integrated 1GE RJ45 copper ports, high-capacity modular aggregation router under Cisco Catalyst 8400 Series architecture, below content strictly follows your requested part number.

1. Official Short Order Description (Datasheet Standard Format)

C8400-8N16T: Cisco Catalyst 8400 High-Capacity Modular Secure SD-WAN Aggregation Router, equipped with 8 NIM network interface module slots, 16 integrated 10/100/1000BASE-T Gigabit RJ45 copper ports, multiple SM-X high-density service module slots, redundant hot-swappable power supplies and fan trays, default 32GB DDR4 DRAM (upgradable to 64GB), 32GB onboard boot flash + expandable M.2 NVMe SSD storage, dedicated wire-speed multi-layer hardware crypto & threat acceleration, powered by cloud-native Cisco IOS XE for enterprise campus WAN aggregation, large regional hub, multi-tenant service provider uCPE and high-scale SD-WAN core deploymentsCisco.

2. Complete Detailed Product Overview

Product Line Positioning

Cisco Catalyst 8400 Series top-tier modular aggregation gateway, custom PID C8400-8N16T, positioned above C8200/C8300 branch routers, designed for centralized WAN aggregation, multi-site branch convergence and carrier-grade virtualized network services. It delivers massive modular expansion capacity, industry-leading forwarding, IPsec and threat protection throughput, with native support for SD-WAN, SASE, NGFW and multi-VNF virtualization workloads3p.cisco.c....

Core Hardware Interface Layout

Fixed Native 16×1GE RJ45 Copper Ports

16 auto-sensing 10/100/1000BASE-T RJ45 Gigabit Ethernet ports for bulk copper MPLS circuits, broadband aggregation, campus LAN access and branch trunk interconnections. All ports support auto-MDI/MDI-X, IEEE 802.1Q VLAN tagging, hardware QoS classification, NAT and multicast forwarding offload. High-speed 10G/25G fiber uplinks are deployed via SM-X expansion service modules.

Expansion Slots (Core Differentiator vs C8300 Series)

8 × NIM (Network Interface Module) slots: Backward compatible with full ISR 4000 NIM portfolio, supporting T1/E1 trunk, serial, DSL, additional Gigabit SFP/RJ45, analog/digital voice modules; all modules support OIR (Online Insertion and Removal) without chassis rebootCisco
Multiple SM-X (Service Module) slots: High-capacity slots for 10G/25G SFP28 aggregation, multi-port DSP voice, enhanced crypto, deep packet inspection and high-density security modules
Built-in dedicated PIM cellular slot for LTE-A / 5G wireless backup uplink modules for redundant multi-WAN resilience

Processor, Memory & Storage

CPU: Multi-core high-performance Intel x86 SoC with dynamic core partitioning, adjustable resource allocation for data-plane forwarding, service-plane security inspection and parallel KVM/Docker VNF workloads viaplatform resourceconfiguration profileCisco
DRAM: Factory default 32GB DDR4 memory, field-upgradable to 64GB for ultra-large SD-WAN tunnel scale, thousands of NAT sessions and multi-concurrent virtual network functionsCisco
Boot Flash: Fixed 32GB onboard flash storage for IOS XE system images, crash dumps and base logging
M.2 Storage Bay: Pre-installed 32GB M.2 SSD, upgradeable to 600GB / 2TB NVMe SSD for extended log retention, container VNF image storage and network analytics dataCisco

Dedicated Hardware Acceleration Engine

Independent integrated co-processor supporting full wire-speed encryption and threat offload:

IPsec VPN acceleration up to 45 Gbps (512-byte packet payload)
NGFW threat protection throughput up to 10.9 Gbps (EMIX traffic)
Supports AES-256, 3DES, RSA, ECDSA, SHA-256/SHA-512, post-quantum cryptography (PQC) for future-proof quantum-resilient securityCisco

Management & Auxiliary Ports

Dual console access: RJ45 serial console + Micro-USB Type B console port for local out-of-band configuration
1 × USB 3.0 Type-C port for license import, offline config backup, firmware upgrades and external storage mountingCisco
Front-panel LCD status display with physical navigation buttons for real-time monitoring of port status, CPU/memory utilization, tunnel count, VNF health and chassis environmental alarms
1 × RJ45 Auxiliary port for remote dial-out emergency management access

Form Factor, Power & Environmental Specs

Form Factor: 2RU high-capacity rack-mount chassis for standard 19-inch / 23-inch four-post rack installation
Redundant Infrastructure: Dual hot-swappable AC/DC/HVDC power supplies, N+1 redundant hot-swappable fan trays with OIR support for carrier-grade high availability
Airflow: Standard front-to-back enterprise airflow; reverse airflow power supply kits available for NEBS-compliant central office deployments
Operating Temperature: 0°C to 40°C indoor deployment
Compliance: UL 62368-1, IEC 62368-1, NEBS Level 3, FCC Class A, CE certified

Official Performance Benchmarks

Aggregate IPv4 CEF forwarding throughput (512-byte IMIX packets): Up to 38 Gbps
Hardware-accelerated IPsec VPN throughput: Max 45 Gbps
Maximum concurrent SD-WAN SVTI overlay tunnels: Up to 10,000 tunnels
Total NAT session capacity: Over 4 million concurrent sessions
NGFW firewall session capacity: 2 million concurrent sessions
Full hardware offload for NBAR2 deep packet inspection, traffic shaping, policing, VXLAN segmentation and multicast routing

Software & Core Supported Capabilities

Powered by cloud-native Cisco IOS XE multi-service operating system, fully integrated with Catalyst SD-WAN and Cisco SASE architecture:

Enterprise & Carrier-Grade Catalyst SD-WAN Aggregation

Zero-touch provisioning via vManage orchestrator, application-aware routing, multi-hybrid WAN aggregation, seamless integration with Cisco Umbrella SIG cloud security and ThousandEyes end-to-end network monitoring
Enterprise-Grade Virtualization & Multi-Tenant uCPE

Native KVM/Docker virtualization with SR-IOV hardware passthrough, supports dozens of concurrent containerized VNFs (virtual firewall, WAN optimization, SIEM, load balancer, monitoring) to consolidate multiple physical appliances on a single chassis
Unified Integrated NGFW Security Stack

Wire-speed hardware VPN acceleration, zone-based firewall, IPS/IDS intrusion prevention, advanced malware protection (AMP), URL filtering, anomaly threat detection, IPv4/IPv6 dual-stack routing, policy-based NAT, VXLAN network segmentation and PQC quantum-safe encryptionCisco
Full-Suite Routing & Unified Communications

Complete protocol support for BGP, OSPF, EIGRP, MPLS, segment routing, PBR and multicast routing; high-density SIP/VoIP trunking compatible with SM-X and NIM voice modules for large-scale campus IP telephony aggregation
Automation & Programmability

REST API, NETCONF, YANG data models, Catalyst Center and NSO Network Services Orchestrator integration for mass enterprise and service provider lifecycle automation

Typical Deployment Scenarios

Enterprise campus central WAN aggregation hubs, large multi-region enterprise core gateways, service provider managed multi-tenant virtual CPE, high-scale SD-WAN core aggregation sites, deployments requiring massive modular expansion for bulk voice, copper WAN and fiber uplink circuits, locations with multi-VNF virtualization and ultra-high tunnel scale requirements.

3. E-commerce Short Marketing Description

Cisco C8400-8N16T 2RU Catalyst 8400 High-Capacity Secure SD-WAN Aggregation Router, multi-core x86 CPU, default 32GB DDR4 DRAM (max 64GB), 16×1GE RJ45 built-in copper ports, 8 NIM + multiple SM-X expansion slots, redundant PSU & fan trays, 32GB M.2 SSD storage, 45Gbps hardware IPsec acceleration, robust multi-VNF virtualization support, IOS XE SASE-ready modular aggregation gateway for enterprise campus core and carrier-grade uCPE deployments.

4. Product Catalog Keyword Tags

Cisco, C8400-8N16T, Catalyst 8400 Series, 2RU Aggregation Router, High-Capacity SD-WAN SASE CPE, 8 NIM Modular Slots, Multi SM-X Service Slots, Multi-core x86, Virtual Multi-Tenant uCPE, Multi-VNF Support, 16x1GE All-Copper Ports, WAN Aggregation Hub, IOS XE, Wire-Speed Hardware Crypto & Threat Acceleration, Enterprise Campus Core Router

Customized Naming Rule Explanation

8N = 8 NIM network interface module expansion slots
16T = 16 integrated 1Gigabit Ethernet RJ45 copper ports
All C8400 modular chassis include multiple SM-X service module slots and 1 dedicated PIM cellular slot as standard hardware configuration


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