Full English Description for Cisco C8500-12N24T

Critical Official Pre-Note

1. Official Short Order Description (Datasheet Standard Format)

2. Complete Detailed Product Overview

Product Line Positioning

Core Hardware Interface Layout

Fixed Native 24×1GE RJ45 Copper Ports

Expansion Slots (Core Differentiator vs Lower C8000 Models)

• 12 × NIM (Network Interface Module) slots: Fully backward compatible with ISR 4000 complete NIM portfolio, supporting T1/E1 PRI trunks, serial WAN, DSL access, extra Gigabit SFP/RJ45, analog/digital voice DSP modules; all modules support OIR (Online Insertion and Removal) without chassis reboot
• Multiple SM-X (Service Module) slots: High-capacity bays for 10G/25G/40G/100G SFP28/QSFP28 aggregation modules, high-density voice DSP banks, enhanced crypto offload, full DPI security and L2 aggregation line cards
• Dedicated built-in PIM cellular slot for LTE-A / 5G wireless backup uplink modules to deliver carrier-grade multi-WAN redundancy

Processor, Memory & Storage

• Data Plane: 3rd-Generation Cisco Quantum Flow Processor (QFP 3.0) ASIC, delivering inline hardware acceleration for routing, IPsec, MACsec, NBAR2 DPI, QoS and multicast, up to 5x higher IPsec throughput than Gen2 QFP platformsCisco
• Control Plane: Multi-core Intel x86 high-performance route processor with dynamic resource partitioning for control-plane protocols, orchestration and VNF virtualization workloads
• DRAM: Factory default 64GB DDR4 memory, field-upgradable to 128GB for ultra-large SD-WAN tunnel scale, millions of NAT/firewall sessions and dozens of concurrent VNF instances
• Boot Flash: Fixed 32GB onboard industrial flash for IOS XE system images, crash dumps and base logging
• Main Storage: Pre-installed 480GB enterprise M.2 NVMe SSD, upgradeable to 2TB NVMe SSD for extended log retention, VNF container storage and network telemetry analytics data

Dedicated Hardware Acceleration Engine

• Max hardware-accelerated IPsec VPN throughput up to 96 Gbps (512-byte packet payload)
• Full NGFW threat inspection throughput up to 32 Gbps under IMIX mixed traffic
• Cipher suite support: AES-256, 3DES, RSA, ECDSA, SHA-256/SHA-512, post-quantum cryptography (PQC) for quantum-resilient future-proof securityCisco

Management & Auxiliary Ports

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

Form Factor, Power & Environmental Specs

• Form Factor: 3RU high-capacity rack-mount chassis for standard 19-inch four-post data center rack installation
• Redundant High-Availability Infrastructure: Dual hot-swappable 1100W AC / 950W DC power supplies (N+1 redundant), hot-swappable redundant fan trays with OIR support for zero-downtime maintenance
• Airflow: Standard front-to-back airflow; reverse airflow power supply kits available for NEBS Level 3 compliant central office deployments
• Operating Temperature: 0°C to 40°C indoor data center / wiring closet 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 200 Gbps
• Hardware-accelerated IMIX IPsec VPN throughput: Maximum 96 Gbps
• Maximum concurrent SD-WAN SVTI overlay tunnels: Up to 10,000 tunnels
• Total NAT session capacity: Over 8 million concurrent sessions
• NGFW firewall session capacity: 4 million concurrent sessions
• Full hardware offload for NBAR2 deep packet inspection, multi-layer MQC QoS, traffic shaping, policing, VXLAN segmentation and IP/IPv6 multicast routingCisco

Software & Core Supported Capabilities

1. Carrier & Enterprise-Grade Catalyst SD-WAN Core Aggregation
   Zero-touch provisioning via vManage orchestrator, application-aware routing, multi-hybrid WAN bulk aggregation, seamless integration with Cisco Umbrella SIG cloud security and ThousandEyes end-to-end full-path network monitoring
2. Mass-Scale Virtualization & Multi-Tenant uCPE Workloads
   Native KVM/Docker virtualization with SR-IOV low-latency hardware passthrough, supports dozens of concurrent containerized VNFs (virtual firewall, WAN optimization, SIEM, load balancer, traffic monitoring) to consolidate dozens of standalone physical appliances on a single chassis
3. Unified Integrated NGFW Security Stack
   Wire-speed hardware VPN/MACsec 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 encryption
4. 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
5. Enterprise & Service Provider Automation & Programmability
   REST API, NETCONF, YANG data models, Catalyst Center and NSO Network Services Orchestrator integration for mass enterprise and multi-tenant service provider lifecycle automation

Typical Deployment Scenarios

3. E-commerce Short Marketing Description

4. Product Catalog Keyword Tags

Customized Naming Rule Explanation

• 12N = 12 NIM network interface module expansion slots
• 24T = 24 integrated 1Gigabit Ethernet RJ45 copper ports
• This custom modular chassis variant includes multiple SM-X service module slots and 1 dedicated PIM cellular slot as standard hardware configuration