Cisco C1111-4P vs C1111-8P: A Detailed Comparison for Network Professionals

When choosing between Cisco’s C1111-4P and C1111-8P routers, network administrators must consider several factors, including performance, design, and long-term usability. Both models belong to Cisco’s C1100 Series, designed for small to medium-sized businesses and branch offices. Below, we break down their key differences to help you make an informed decision.

Performance Comparison

The C1111-8P clearly outperforms the C1111-4P in processing power, memory, and storage, making it better suited for high-demand environments.

Key Functional Differences

1. Port Availability & Connectivity

• C1111-4P:

• 4x Gigabit Ethernet ports

• 1x USB 3.0 port

• Limited expansion slots

• C1111-8P:

• 8x Gigabit Ethernet ports

• 2x USB 3.0 ports

• Additional expansion slots for future upgrades

The 8P model offers superior connectivity, ideal for businesses expecting growth.

2. Security & VPN Support

Both models support IPSec, SSL VPN, and Cisco’s Firepower Threat Defense (FTD). However, the C1111-8P handles more simultaneous VPN connections due to its higher RAM and CPU power.

Design & Build Quality

• C1111-4P: Compact, fanless design (ideal for quiet office spaces).

• C1111-8P: Slightly larger with active cooling (better for sustained high loads).

Both feature rugged metal casings, but the 8P model includes better heat dissipation for prolonged heavy usage.

User Experience & Ease of Management

• Setup: Both support Cisco’s intuitive web interface and CLI.

• Performance Under Load: The C1111-8P maintains smoother performance with multiple connected devices.

• Noise Levels: The 4P model is silent, while the 8P has a low hum from its cooling fan.

Pricing & Value for Money

• C1111-4P: More budget-friendly, best for small offices with basic needs.

• C1111-8P: Higher upfront cost but better long-term scalability.

For businesses planning expansion, the 8P model provides better ROI.

Power Efficiency & Battery Considerations

• C1111-4P: Consumes 15W (ideal for energy-conscious deployments).

• C1111-8P: Uses 25W under full load (still efficient for its performance tier).

Neither model supports PoE, so external power injectors are needed for PoE devices.

Compatibility & Expansion Options

• Software: Both run Cisco IOS-XE with full SD-WAN compatibility.

• Third-Party Integrations: Works with VMware, AWS, and Azure for hybrid cloud setups.

• Upgrade Path: The 8P model has additional DIMM slots for RAM upgrades.

Final Recommendation

• Choose the C1111-4P if:

• You need a cost-effective, quiet router for a small office.

• Your bandwidth demands stay below 500 Mbps.

• Choose the C1111-8P if:

• You anticipate network growth.

• You require higher throughput, more ports, and better multitasking.

Both models deliver Cisco’s renowned reliability, but the 8P is the smarter choice for future-proofing.

Would you like a deeper dive into VPN performance or real-world deployment case studies? Let us know in the comments!