Full Official English Description – Cisco Catalyst C9300L-24U-4X-A

1. Product Overview

2. Port Hardware Specifications

• Downlink Copper Ports: 24 × 10/100/1000BASE-T RJ45 ports with full Cisco UPOE capability, auto-MDI/MDIX and auto-speed negotiation; each port supplies up to 60W DC power
• Fixed Integrated Uplinks: 4 built-in dual-rate SFP+ slots supporting auto-sensing 1G / 10G speeds, compatible with 1000BASE-SX/LX and 10GBASE-SR/LR/LRM/ZR optical transceivers as well as 10G direct attach copper (DAC) cables for high-speed inter-switch aggregation links
• Stacking Interfaces: Dedicated rear StackWise-320 stacking ports delivering 320 Gbps bidirectional stacking bandwidth; supports stacking of up to 8 physical switches consolidated into a single unified logical switching domain
• Management Interfaces:
  1 × RJ45 serial console port, 1 × USB Type-A console port
  1 × 1G out-of-band management Ethernet port
  1 × USB 3.0 storage port for offline firmware upgrades, log export and local configuration backup
• Onboard Memory & Storage: 8 GB DDR4 DRAM, 16 GB internal flash memory

3. Switching & Forwarding Performance

• Standalone Full-Duplex Switching Capacity: 176 Gbps
• Standalone Line-Rate Forwarding Rate: 130.95 Mpps
• Aggregated Full Stack Bandwidth: Up to 496 Gbps
• Stack Aggregated Forwarding Throughput: 369.05 Mpps
• MAC Address Table Capacity: 32,000 MAC forwarding entries
• IPv4 Routing Table: 32,000 route entries (24,000 direct routes + 8,000 indirect routes)
• IPv6 Routing Table: 16,000 route entries
• Multicast Group Table: 8,000 multicast group entries
• Shared Hardware Packet Buffer: 16 MB buffer to absorb bursty wireless, 4K video and IoT traffic
• Hardware ACL Scale: 5,120 ingress rules + 5,120 egress ACL rules
• Flexible NetFlow Flow Table: 64,000 flow entries
• Jumbo Frame Support: Up to 9198 bytes
• Maximum Switched Virtual Interfaces (SVIs): 1000 SVIs for inter-VLAN routing

4. Power & Thermal Architecture

• Power Supply Support: 1 or 2 hot-swappable Platinum-efficiency AC power supplies with OIR (Online Insertion and Removal); factory default ships with single 1100W AC PSU (PWR-C1-1100WAC-P)
• UPOE Power Budget Scaling:
  Single 1100W PSU: 645W total UPOE power allocation for 24×60W high-power endpoints
  Dual redundant high-wattage PSUs: Expanded PoE budget to support simultaneous full-power operation of all 24 UPOE ports
• StackPower Technology: Cross-stack power resource pooling in ring topology, dynamic PoE load balancing and N+1 power redundancy across all stack members
• Cooling System: 3 field-replaceable variable-speed hot-swap fans with redundant cooling design, low acoustic noise suitable for office rack room deployment
• Universal Input Voltage: 100–240V AC, 50/60Hz mains input
• Typical Idle Power Consumption: ~108W under standard operating load

5. Stacking & High Availability Technology

• StackWise-320: 320 Gbps high-speed stacking backplane, sub-50ms traffic convergence upon stack member hardware failure
• SSO/NSF: Stateful Switchover and Nonstop Forwarding to eliminate service interruption during stack supervisor role failover
• Mixed Stack Compatibility: Fully inter-stackable with all Catalyst 9300L series switches (T/P/U/PF/UXG fixed-port variants); all stack units are managed under one unified logical domain on DNA Center
• Cross-stack EtherChannel, Flexlink+ and Extended Fast Software Upgrade supported to enhance stack-level service resiliency

6. Hardware-Accelerated Enterprise Security (Full Feature Set Unlocked by Network Advantage)

• MACsec 256-bit AES hardware link encryption supported on all UPOE copper downlinks and SFP+ fiber uplink ports
• Encrypted Traffic Analytics (ETA) for AI-powered hidden malware detection within encrypted application flows
• Trustworthy Systems secure boot, runtime integrity verification and digital firmware authenticity validation via onboard Trust Anchor Module
• TrustSec SGT group-based microsegmentation for end-to-end SD-Access fabric policy enforcement
• Endpoint Authentication Suite: IEEE 802.1X, MAB, captive WebAuth multi-factor access control
• Layer 2 Threat Mitigation: Dynamic ARP Inspection (DAI), DHCP Snooping, IP Source Guard, BPDU Guard, broadcast/multicast storm suppression
• Secure Management Transport: SSH, HTTPS, SNMPv3, encrypted NETCONF/YANG streaming telemetry channels
• Native support for on-box containerized application hosting, Cisco Umbrella DNS filtering and ThousandEyes synthetic network monitoring

7. Layer 2 & Layer 3 Protocol Support

Full Layer 2 Feature Set

Complete Advanced Layer 3 Routing Suite (Exclusive to -A License Tier)

8. Software & Cisco DNA Licensing Ecosystem

• Operating System: Cisco IOS XE universal switch image (17.x release train)
• Preinstalled Perpetual License Tier: Cisco DNA Network Advantage
  Unlocks complete enterprise feature portfolio: SD-Access fabric architecture, ETA malware analytics, TrustSec microsegmentation, full BGP/PBR advanced routing, containerized application hosting, ThousandEyes synthetic network monitoring, advanced streaming telemetry and full Layer 3 protocol suite
• Supported Management Interfaces:
  Local CLI via console/SSH, embedded web UI, Cisco Catalyst Center (DNA Center), Cisco Prime Infrastructure, Zero-Touch Provisioning (ZTP)
• Programmability: RESTCONF, NETCONF/YANG streaming telemetry, on-box Python guest shell, container hosting for local automation workloads

9. Physical & Environmental Specifications

• Form Factor: 1 Rack Unit (1RU) standard 19-inch EIA rack-mount chassis
• External Dimensions: 445 mm (W) × 410 mm (D) × 44 mm (H) / 17.5 × 16.1 × 1.73 inches
• Chassis Weight (single 1100W PSU installed): 7.5 kg (16.53 lbs)
• Operating Ambient Temperature: 0°C ~ +45°C
• Storage Temperature: -40°C ~ +70°C
• Operating Humidity: 5% – 90% non-condensing
• Typical MTBF Rating: 332,460 hours under standard factory operating conditions
• Compliance Certifications: UL, CSA, CE, FCC Class A, ICES-003, RoHS, TAA, ENERGY STAR certified

10. Model Naming Breakdown

• C9300L: Catalyst 9300 Lite cost-optimized fixed-uplink stackable switching platform equipped with StackWise-320
• 24U: 24-port 10/100/1000BASE-T Cisco UPOE copper downlinks (max 60W per port, IEEE 802.3bt Class 3)
• 4X: Four fixed dual-rate 1G/10G SFP+ fiber uplink ports
• A: Pre-activated Cisco DNA Network Advantage perpetual full-feature license tier

11. Typical Deployment Scenarios

1. Small & medium enterprise office wired access powering high-power Wi‑Fi 6/6E wireless APs, PTZ 4K surveillance cameras and video conference endpoints with low-latency 10G fiber uplinks to distribution layers
2. Small branch office access layer combining wired workstations and high-power wireless APs, managed centrally via DNA Center with full SD-Access fabric segmentation capability
3. Education classrooms and training labs equipped with UPOE IP cameras, high-power VoIP handsets and premium high-throughput wireless access points
4. Medium-density smart building IoT aggregation for access control panels, high-power lighting actuators and large-format digital signage
5. SD-Access fabric access and intermediate node deployments requiring full TrustSec segmentation, BGP routing and encrypted traffic threat analytics

Key Distinction Note

• -A (Network Advantage): On-prem DNA Center managed, perpetual full-feature license with advanced routing, ETA analytics and SD-Access fabric support
• -E (Network Essentials): On-prem DNA Center managed, baseline perpetual license with limited Layer 3 routing and no advanced security/fabric features, lower upfront procurement cost
• -M (Meraki Cloud-Managed): Cloud subscription-based orchestration, split Meraki Enterprise/Advanced feature tiers without Cisco DNA perpetual licenses