Cisco Catalyst 9300 and 9300L Series Guide: Models, PoE, Stacking, and Deployment

Cisco Catalyst 9300 series switches—including C9300, C9300X, C9300L, and C9300LM—represent Cisco’s flagship stackable enterprise access platform. Designed for intent-based networking, these switches deliver high performance, robust security, and flexible deployment for enterprise and campus networks. Understanding the differences between modular and fixed uplink models, StackWise bandwidth, PoE options, and deployment scenarios is critical for IT decision-makers aiming for reliable and scalable network architectures.

Contents

• Part 1. Series Overview: Cisco Catalyst 9300 vs 9300L
• Part 2. Model Overview and Popular Configurations
• Part 3. PoE, Uplinks, and Stack Options
• Part 4. Management and Software
• Part 5. Deployment Scenarios
• Part 6. FAQ
• Conclusion

Part 1. Series Overview: Cisco Catalyst 9300 vs 9300L

The Cisco Catalyst 9300 family excels in high-density, high-throughput access and integrated security. All models are based on the Cisco UADP 2.0 ASIC (or UADP 2.0sec for C9300X), which supports programmable pipelines and microengine functionality for flexible L2/L3 forwarding, ACLs, and QoS templates.

Key Points:

• C9300/C9300X: Modular uplinks and FRU components provide high flexibility, investment protection, and upgrade paths.
• C9300L/LM: Fixed uplinks and StackWise-320 deliver cost-effective access for branches or SMBs.
• Stacking incompatibility: C9300L/LM cannot mix with modular C9300 or other Catalyst series.

For a deeper understanding of Cisco’s stackable access platforms, see Router-switch Catalyst 9300 vs 9200 Comparison.

Part 2. Model Overview and Popular Configurations

Modular / Standard C9300 Series

Fixed / Cost-Optimized C9300L Series

Part 3. PoE, Uplinks, and Stack Options

• Power: C9300 series supports PoE+, UPOE (60W), and UPOE+ (90W). StackPower allows shared power across stack members. C9300L/LM does not support StackPower.
• Uplink Modules: Modular C9300 supports optional hot-swappable uplinks (1G/10G/25G/40G/100G). Fixed C9300L has built-in uplinks (4x1G, 4x10G, or 4x25G).
• Stacking: C9300 supports StackWise-480/1T; C9300L supports StackWise-320. Fixed and modular models cannot be mixed in a stack.

Part 4. Management and Software

• All models run Cisco IOS XE, supporting advanced security, SD-Access, and App Hosting.
• C9300X provides UADP 2.0sec ASIC with 100G IPsec hardware acceleration.
• Encryption and telemetry features like Encrypted Traffic Analytics (ETA) are supported.
• Licensing: Network Essentials or Network Advantage with optional DNA subscription.

Management options include:

1. CLI & Web UI: Full VLAN, QoS, and security control.
2. Cisco DNA Center: Automation and intent-based networking.
3. Meraki Dashboard: Select -M SKUs for cloud management.

Software & Licensing:

• IOS XE: Modular OS on Linux kernel; supports App Hosting.
• Licenses: Perpetual (Network Essentials/Advantage) and Subscription (SD-Access, ThousandEyes, Cisco Spaces).

Security & Automation:

• MACsec, IPsec hardware acceleration, and Encrypted Traffic Analytics (ETA).

For VLAN or configuration guidance, see: Cisco 9200 Switch Port Numbering, How to Configure VLAN on Cisco Switch, and Cisco Warranty Check Guide.

Part 5. Deployment Scenarios

• Enterprise Core/Distribution: Modular C9300/C9300X is ideal for high-performance stacking, flexible uplinks, and StackPower redundancy.
• Wi-Fi 6/6E Integration: Models with UPOE+ support high-speed wireless APs and smart building devices.
• Branch or Budget Deployments: C9300L provides simplified stacking, fixed uplinks, and cost-effective PoE.
• Space-Constrained Rooms: C9300LM shallow-depth chassis fits tight wiring closets or new smart buildings.

For IT teams seeking reliable Cisco Catalyst 9300/9300L devices with verified stock, fast delivery, and professional technical support, Router-switch Warranty & Purchase Guide offers curated selection and guidance for seamless deployment.

Part 6. FAQ

1. What is the difference between Cisco 9300 and 9300L? C9300 offers modular uplinks, StackWise-480/1T, and StackPower. C9300L has fixed uplinks, StackWise-320, and no StackPower.
2. What is a Catalyst 9300L? C9300L is a cost-optimized, fixed version of the 9300 series with most SD-Access and security features but reduced stacking bandwidth and fixed uplinks.
3. Can I stack C9300 and C9300L together? No. Stack architectures differ (320 Gbps vs 480 Gbps/1T), and Cisco does not support mixing these models.
4. Is the Cisco 9300 end-of-life? No. Cisco continues to innovate with C9300X, offering higher 1 Tbps stacking, 100G IPsec, and 90W UPOE+ support.

Conclusion

Cisco Catalyst 9300 series delivers high-performance, secure, and flexible enterprise access. Selecting the right model—modular C9300/C9300X or fixed C9300L/LM—ensures optimized PoE, StackWise, and uplink configurations for SMBs, campus networks, or high-density Wi-Fi 6 deployments. Partnering with Router-switch ensures verified stock, fast delivery, and professional technical support for a smooth deployment.