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Part Number: C9500-24Y4C-A
Description: Cisco Catalyst 9500 Series high performance 24-port 1/10/25G switch, Network Advantage License
Category: Switches
15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
Same-Day Shipping
On all on-hand orders placed before 2 pm CST.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
Terms & Conditions*
The Cisco C9500-24Y4C-A stands as a premier aggregation enterprise switching platform designed to meet the demands of modern campus networks. As part of the Cisco Catalyst 9500 Series, the C9500-24Y4C-A delivers unmatched table scale and throughput for enterprise applications requiring reliable, high-speed connectivity. The C9500-24Y4C-A features 24 ports of 25 Gigabit Ethernet line-rate interfaces alongside four 40/100 Gigabit Ethernet uplinks, providing exceptional bandwidth for core and aggregation deployments.
With its purpose-built fixed core architecture, the C9500-24Y4C-A powers business operations through consistent low-latency switching and deterministic performance. The C9500-24Y4C-A incorporates a high-performance X86 CPU complex that supports sophisticated services while maintaining wire-speed forwarding. Organizations implementing the C9500-24Y4C-A benefit from its ability to handle demanding workloads across security, IoT, and cloud applications without performance degradation.
The C9500-24Y4C-A is a platform built for security, IoT, and cloud integration, incorporating Cisco Trustworthy Solutions that establish hardware-level integrity verification. Through its sophisticated threat detection mechanisms, the C9500-24Y4C-A provides proactive protection against evolving security challenges across the enterprise campus. The C9500-24Y4C-A supports granular security policies through access control lists and hardware encryption that secure data in transit.
When deployed within a Cisco Digital Network Architecture framework, the C9500-24Y4C-A enables policy-based automation that consistently enforces security controls across distributed environments. The C9500-24Y4C-A facilitates secure cross-domain connectivity through virtual interfaces and sophisticated segmentation capabilities. By integrating security directly into the network fabric, the C9500-24Y4C-A reduces complexity while improving threat visibility and incident response across the enterprise.
The C9500-24Y4C-A comes standard with the Network Advantage license, unlocking advanced routing and network system virtualization features essential for enterprise-class core deployments. With full support for enterprise routing protocols including IS-IS and PIM-SM/PIM-SSM, the C9500-24Y4C-A enables sophisticated traffic engineering across complex topologies. The C9500-24Y4C-A supports comprehensive VPN routing and Multicast VPN implementations that maintain security across distributed environments.
Organizations can leverage the C9500-24Y4C-A’s support for Multiprotocol Label Switching to create deterministic paths for latency-sensitive applications. The C9500-24Y4C-A includes extensive quality of service mechanisms that ensure appropriate resource allocation for critical traffic flows. With its comprehensive feature set, the C9500-24Y4C-A provides the infrastructure services necessary for modern enterprise applications while simplifying network design through its versatile capabilities.
The C9500-24Y4C-A features a software-driven architecture that frees network operators from repetitive network configuration tasks through powerful automation capabilities. With full programmability across all aspects of switch operation, the C9500-24Y4C-A enables streamlined enterprise network operations through standardized APIs and telemetry. The C9500-24Y4C-A serves as a key component in SD-Access deployments, supporting the host tracking database and automated fabric functions.
Network administrators can leverage the C9500-24Y4C-A’s programmable architecture to implement consistent configurations across distributed environments, reducing human error and accelerating service delivery. The C9500-24Y4C-A integrates seamlessly with Cisco DNA Center, providing centralized management and analytics capabilities. By combining programmability with comprehensive monitoring, the C9500-24Y4C-A enables enterprises to respond quickly to changing business requirements while maintaining operational excellence.
The Cisco C9500-24Y4C-A features a robust hardware platform engineered for reliability and performance in demanding enterprise environments:
| Feature | Specification |
| Form Factor | 1RU |
| Dimensions (H x W x D) | 1.73 x 17.5 x 20.5 inches (4.4 x 44.5 x 52.1 cm) |
| Weight | 30.0 lbs (13.6 kg) with power supplies |
| Access Ports | 24 x 25 Gigabit Ethernet SFP28 ports |
| Uplink Ports | 4 x 40/100 Gigabit Ethernet QSFP28 ports |
| Switching Capacity | 2.4 Tbps |
| Forwarding Rate | 1,428 Mpps |
| System Memory | 16 GB |
| Flash Memory | 16 GB |
| Power Supply | 2 x 1100W AC (PWR-C4-1100WAC-R) |
| Redundant Power Supply | Included |
| MTBF | 354,480 hours |
| Mounting | Four-point mounting options available |
The C9500-24Y4C-A leverages Cisco’s latest ASIC technology, providing the performance required for demanding campus core applications. With support for both 1G SFP and 10G/25G SFP+ modules, the C9500-24Y4C-A offers flexible connectivity options for various network topologies. The C9500-24Y4C-A operates in full duplex mode on all ports, maximizing effective bandwidth for high-volume traffic flows.
The C9500-24Y4C-A runs Cisco IOS XE and includes the Network Advantage license, providing a comprehensive set of networking features:
| Feature Category | Key Capabilities |
| Layer 2 | 802.1Q VLANs, Private VLANs, Spanning Tree Enhancements |
| Layer 3 | Full routing protocols, Policy-Based Routing, Network Address Translation |
| IPv6 | Full IPv6 support, OSPFv3, BGP for IPv6 |
| High Availability | SSO, NSF, GIR (Graceful Insertion and Removal), ISSU* |
| Security | MACsec-256, Control Plane Protection, SGACL enforcement |
| SD-Access | Fabric Border, Fabric Control Plane, Fabric Edge |
| QoS | 16 queues per port, policing, shaping, prioritization |
| Management | NETCONF/YANG, REST API, gRPC, Streaming Telemetry |
| Automation | Zero-Touch Provisioning, Python Scripting |
| Virtualization | VRF, VRF-aware services, EVN |
The C9500-24Y4C-A includes the Network Advantage license as standard, providing advanced infrastructure features without additional licensing purchase. The switch supports Cisco DNA Center integration through the optional Cisco DNA license subscription, enabling additional automation and analytics capabilities. The C9500-24Y4C-A receives regular software updates that include security patches and feature enhancements.
The C9500-24Y4C-A delivers exceptional performance suitable for enterprise-class core and aggregation deployments:
| Performance Metric | Capability |
| MAC Address Table | 128,000 entries |
| IPv4 Routes | 208,000 |
| IPv6 Routes | 104,000 |
| Multicast Routes | 32,000 |
| QoS ACLs | 24,000 |
| Security ACLs | 24,000 |
| VLANs | 4,094 |
| SVI Interfaces | 4,094 |
| Jumbo Frame Support | 9216 bytes |
| Spanning Tree Instances | 3,000 |
| Virtual Interfaces | 16,000 |
The C9500-24Y4C-A provides the processing capability required for large enterprise campus deployments with substantial routing and switching requirements. Its enhanced buffer architecture ensures consistent performance during traffic microbursts. The C9500-24Y4C-A’s forwarding capabilities ensure deterministic behavior for latency-sensitive applications while supporting comprehensive security and monitoring functions.
The C9500-24Y4C-A offers specific advantages compared to other models in the Cisco Catalyst 9500 Series:
| Feature | C9500-24Y4C-A | C9500-32C | C9500-48Y4C |
| Form Factor | 1RU | 1RU | 1RU |
| Access Ports | 24 x 25G SFP28 | 32 x 100G QSFP28 | 48 x 25G SFP28 |
| Uplink Ports | 4 x 100G QSFP28 | Shared with access | 4 x 100G QSFP28 |
| Switching Capacity | 2.4 Tbps | 6.4 Tbps | 3.2 Tbps |
| Base License | Network Advantage | Network Advantage | Network Advantage |
| Use Case | Mid-size Campus Core | Large Campus/DC | Large Campus Core |
The Catalyst 9500 Series is the industry’s leading enterprise switching platform built for demanding core and aggregation deployments. The C9500-24Y4C-A switch model provides a balanced combination of port density and performance, making it ideal for mid-sized campus networks. Compared to higher-density models like the C9500-48Y4C, the C9500-24Y4C-A offers similar foundational capabilities in a more cost-effective package for appropriately sized deployments.
The C9500-24Y4C-A achieves cost-effectiveness through its optimized 24-port 25G design that balances performance and price for mid-sized enterprise deployments, providing exceptional value compared to higher-density models when matching actual network requirements. Its granular port densities allow organizations to purchase exactly the capacity needed without overprovisioning, while the included Network Advantage license eliminates separate licensing costs for advanced routing features. The C9500-24Y4C-A’s programmable architecture reduces operational expenses by automating routine tasks and enabling efficient network operations, delivering long-term value beyond the initial capital investment.
The C9500-24Y4C-A supports all standard networking protocols and interoperates seamlessly with existing Cisco and third-party infrastructure through industry-standard implementations. Its flexible port configurations accommodate connections to various network elements, from legacy 1G devices to high-speed 100G aggregation links, simplifying migration from previous-generation hardware. The C9500-24Y4C-A can function in traditional network architectures immediately while providing a seamless path to Software-Defined Access as organizational readiness evolves, protecting existing investments while enabling future capabilities.
The C9500-24Y4C-A’s 25G access ports and 100G uplink interfaces provide substantial bandwidth headroom for evolving application requirements, ensuring the switch can accommodate growing traffic demands without replacement. Its programmable architecture supports ongoing feature evolution through software updates, allowing new capabilities to be deployed throughout the product lifecycle without hardware changes. The C9500-24Y4C-A’s sophisticated virtualization features including VRF and network system virtualization enable flexible network designs that can adapt to changing organizational requirements and emerging technologies.
The C9500-24Y4C-A implements comprehensive reliability features including redundant, hot-swappable power supplies and fans that maintain operation during component failures. Its foundational high availability capabilities include Graceful Insertion and Removal (GIR), allowing maintenance operations without service disruption, and Non-Stop Forwarding (NSF) that preserves network connectivity during control plane events. The C9500-24Y4C-A’s hardware and software architecture ensures robust operation under demanding conditions, making it suitable for mission-critical enterprise applications where downtime is unacceptable.
Organizations should carefully evaluate their optical transceiver requirements, as the C9500-24Y4C-A exclusively uses SFP28 and QSFP28 modules that must be properly matched to connected devices and distance requirements. When planning network upgrades, consideration should be given to the C9500-24Y4C-A’s role within a broader Cisco DNA strategy, as integration with Cisco DNA Center enhances its management capabilities and unlocks advanced automation features. IT teams should invest in familiarization with the C9500-24Y4C-A’s programmability features and automation tools to fully leverage its operational benefits, particularly when transitioning from legacy CLI-centric management to modern controller-based approaches.
At Network Republic, our end-user accounts are covered by a 1-Year Warranty on all hardware—whether New, New Open Box, New Pull, Refurbished, or Refurbished by Manufacturer —from the date of delivery. This warranty covers hardware defects under normal use and allows for repair, replacement, or in-house credit at our discretion.
For resellers and wholesale purchases, we offer a 30-Day Warranty limited strictly to functional issues or defects upon arrival, including dead-on-arrival (DOA) items; it does not apply to problems arising after prolonged use. Resellers are responsible for inspecting and testing products within the 30-day window. This warranty excludes accidental damage, misuse, cosmetic wear, third-party modifications, and software-related issues unrelated to hardware failure. Check out our full warranty policy here.
Software licenses are not covered under the standard return and warranty policies and need to be activated on the hardware within 7 days of receipt. Any issues need to be reported immediately, within 10 days, so we can issue an exchange. Under no circumstances will refunds be issued for software licenses.
Our team of professionals are experts in networking hardware configurations and can assist you at any time during your purchasing process. We always recommend great price-performance alternatives based on current market price and availability. In need of assistance or looking for a specific part number? Request a quote today or chat with one of our IT specialists.

