C9600-LC-24C Line Card: Features, Specs & Use Cases

As enterprise networks continue to evolve, organizations require high-capacity, resilient, and future-proof core infrastructure. Applications such as cloud computing, video collaboration, IoT, and real-time analytics place increasing demands on network performance. The C9600-LC-24C line card is purpose-built to address these challenges by delivering ultra-high-speed connectivity within the Cisco Catalyst 9600 Series.

Designed for enterprise core and aggregation deployments, the C9600-LC-24C offers a balance of performance, scalability, and operational simplicity. This article provides a detailed overview of the C9600-LC-24C, including features, technical specifications, deployment scenarios, and practical use cases to help enterprises make informed decisions.

What Is the C9600-LC-24C?

The C9600-LC-24C is a modular line card engineered for the Cisco Catalyst 9600 Series switches. It delivers 24 ports of 100-Gigabit Ethernet connectivity, making it ideal for environments that require high bandwidth and consistent performance at the network core.

Unlike fixed-configuration switches, the Catalyst 9600 platform allows organizations to expand and adapt their network by adding line cards such as the C9600-LC-24C. This modular approach supports long-term scalability and investment protection.

Key Features of the C9600-LC-24C

High-Density 100G Connectivity

• 24 high-speed 100G Ethernet ports

• QSFP28-based interfaces for modern optical connectivity

• Supports flexible network designs with breakout capabilities

Enterprise-Class Performance

• Line-rate forwarding across all ports

• Optimized for heavy east-west and north-south traffic

• Designed for large-scale enterprise workloads

High Availability and Resilience

• Hot-swappable design minimizes downtime

• Supports redundant supervisors and power supplies

• Ideal for always-on business environments

Software-Driven Intelligence

• Operates on Cisco IOS XE

• Supports automation, programmability, and analytics

• Simplifies operations in large enterprise networks

Technical Specifications Overview

• Product Model: C9600-LC-24C

• Switch Platform: Cisco Catalyst 9600 Series

• Port Configuration:

  • 24 × 100-Gigabit Ethernet ports

  • QSFP28 form factor

• Port Speed Support:

  • 100G Ethernet

  • Breakout support for flexible configurations

• Forwarding Performance:

  • Line-rate forwarding on all ports

  • Optimized for high-throughput enterprise core traffic

• Operating System: Cisco IOS XE

• Architecture: Modular line card design

• Deployment Layer:

  • Enterprise core

  • Aggregation layer

• High Availability Support:

  • Hot-swappable line card

  • Compatible with redundant supervisors and power supplies

• Use Case Focus:

  • High-density core switching

  • Data-intensive and mission-critical environments

Role of the C9600-LC-24C in Enterprise Networks

Core Layer Implementation

The C9600-LC-24C is ideally suited for the enterprise core, where reliability and throughput are critical. It aggregates traffic from distribution and access layers while maintaining consistent performance.

Aggregation Layer Scalability

In large campus environments, the line card supports high-speed aggregation of multiple distribution switches, reducing bottlenecks and simplifying network architecture.

High-Bandwidth Workloads

Organizations running virtualization platforms, analytics engines, and collaboration tools benefit from the predictable performance of 100G connectivity.

Performance and Reliability Benefits

Consistent Throughput Under Load

The C9600-LC-24C maintains performance even during traffic spikes, ensuring smooth operation for latency-sensitive applications.

Hardware-Level Redundancy

When deployed in a fully redundant Catalyst 9600 chassis, the line card supports fast failover and minimal service interruption.

Long-Term Network Stability

The modular design allows enterprises to scale bandwidth without replacing the entire switching platform, extending hardware lifecycle value.

Security Capabilities Supported

The C9600-LC-24C benefits from the advanced security architecture of the Catalyst 9600 platform, including:

• Secure traffic segmentation

• Role-based access control

• Integrated threat detection

• Encrypted traffic visibility

These features help enterprises maintain compliance and protect sensitive data while sustaining high performance.

Software, Automation, and Manageability

Cisco IOS XE Advantages

• Unified operating system across enterprise platforms

• Regular software updates and feature enhancements

• Strong support for network automation

Automation and Programmability

Network teams can streamline operations using programmable interfaces and automation frameworks, reducing manual errors and accelerating deployments.

Real-World Use Cases

Large Enterprise Campuses

Global organizations deploy the C9600-LC-24C to aggregate traffic from multiple buildings and departments, ensuring reliable high-speed connectivity.

Financial and Trading Environments

Low latency and consistent throughput make the line card suitable for transaction-heavy and time-sensitive systems.

Healthcare and Education Networks

Hospitals and universities rely on the C9600-LC-24C to support bandwidth-intensive applications such as digital imaging, research platforms, and online learning.

Comparison with Lower-Density Line Cards

Compared to lower-speed or mixed-port line cards, the C9600-LC-24C provides:

• Higher 100G port density

• Simplified cabling and network design

• Better readiness for future bandwidth growth

This makes it a strong choice for organizations planning long-term expansion.

Deployment Best Practices

• Verify compatibility with Catalyst 9600 supervisors and chassis

• Use certified QSFP28 transceivers and cabling

• Design redundancy across power and control planes

• Standardize configurations using automation tools

Frequently Asked Questions:

What is the primary purpose of the C9600-LC-24C?

The C9600-LC-24C is designed to deliver high-density 100G connectivity for enterprise core and aggregation networks.

Can the C9600-LC-24C be used in aggregation layers?

Yes, it is commonly used in aggregation layers for large campus and enterprise environments.

Does the C9600-LC-24C support breakout configurations?

Yes, the QSFP28 ports support breakout options for flexible network designs.

Which operating system supports the C9600-LC-24C?

The line card operates on Cisco IOS XE as part of the Catalyst 9600 Series.

Conclusion

The C9600-LC-24C is a high-performance, scalable line card designed for modern enterprise networks that demand speed, reliability, and long-term flexibility. With 24 ports of 100-Gigabit Ethernet, a modular architecture, and robust software support, it enables organizations to build resilient and future-ready network cores.

For enterprises planning network upgrades or expansions, the C9600-LC-24C offers a powerful foundation that supports today’s workloads while preparing for tomorrow’s growth.