C9300-48T-RA: How Does Cisco’s Redundant Sw
Hardware Architecture and Redundancy Capabilities The �...
Technical Specifications and Core Capabilities
The Cisco Catalyst C9300LM-48UX-4Y-1A is a 48-port multi-gigabit Layer 3 switch engineered for high-power, high-bandwidth enterprise environments. It combines 48 x 1/2.5/5/10G Multi-Gig Ethernet ports with 4 x 25G SFP28 uplinks (4Y), delivering scalable connectivity for modern networks. The “1A” suffix denotes a 1-year Cisco DNA Essentials license, providing foundational automation, security, and analytics tools. With UPOE+ (Universal Power over Ethernet), it supplies 90W per port across all 48 ports, totaling 3.6kW PoE budget—ideal for powering advanced IoT, AV, and wireless infrastructure.
Critical Features and Competitive Advantages
- Multi-Gigabit Flexibility: All access ports auto-negotiate 1G to 10G speeds, accommodating Wi-Fi 6E access points, 4K cameras, and high-performance workstations.
- High-Speed Uplinks: The 25G SFP28 uplinks support breakout configurations for 4x10G or 4x25G connectivity, ideal for spine-leaf topologies or data center edge deployments.
- UPOE+ Powerhouse: Eliminates the need for external power supplies by delivering 90W per port—enough for digital signage, PTZ cameras, and PoE++ devices.
- StackWise-480: Enables 480Gbps stacking bandwidth for up to 8 switches, ensuring redundancy and simplified management in large-scale deployments.
Optimal Deployment Scenarios
- Smart Stadiums and Arenas: Powers thousands of connected devices, from ticketing systems to AR/VR kiosks, with uninterrupted power and low-latency uplinks.
- High-Density Workspaces: Supports collaboration tools like Cisco Room Kits and wireless docking stations in modern office environments.
- Industrial IoT Hubs: Manages sensor networks, robotics, and automated machinery in manufacturing plants.
For procurement options, explore the C9300LM-48UX-4Y-1A at itmall.sale.
Comparison: C9300LM-48UX-4Y-1A vs. C9300L-48UXG2Q-10A
| Feature | C9300LM-48UX-4Y-1A | C9300L-48UXG2Q-10A |
|---|---|---|
| PoE Budget | 3.6kW (90W/port) | 740W (30W/port) |
| Uplink Speed | 4x25G | 2x100G QSFP28 |
| Licensing | DNA Essentials (1-year) | DNA Advantage (10-year) |
| Primary Use Case | High-power IoT/WLAN | Multi-gig data aggregation |
Addressing Key User Questions
Q: Can the 1-year DNA Essentials license be extended?
A: Yes—Cisco offers annual renewals or upgrades to DNA Advantage/Premier for advanced features like SD-Access or Stealthwatch.
Q: Are the 25G uplinks backward-compatible with 10G optics?
A: Yes, SFP28 ports support 10G/25G optics, allowing gradual upgrades without hardware swaps.
Q: Does UPOE+ comply with IEEE 802.3bt standards?
A: Cisco’s UPOE+ exceeds IEEE’s 71W PoE++ limit, delivering 90W per port via proprietary negotiation. Confirm device compatibility before deployment.
Q: What cooling requirements apply?
A: Operates in front-to-back airflow mode within 0°C to 45°C ambient temperatures, fitting standard data center racks.
Strategic Perspective
The C9300LM-48UX-4Y-1A is a niche powerhouse for enterprises demanding extreme power and multi-gig flexibility. Its 3.6kW PoE budget is unmatched in its class, making it ideal for venues where device density and power requirements are critical. However, the lack of 100G uplinks and shorter licensing term may deter organizations prioritizing long-term scalability. For smart venues or industrial IoT deployments, this switch’s blend of UPOE+ and 25G uplinks offers a compelling solution—provided the premium cost aligns with ROI goals. In contrast, standard PoE+ models suffice for less demanding environments, underscoring the importance of aligning hardware specs with actual use cases.