C9500-24Y4C-ASwitches

The Cisco Catalyst C9500-24Y4C-A is a next-generation enterprise-class core and aggregation switch designed to deliver ultra-fast, secure, and highly scalable networking for modern enterprise environments. Part of the Cisco Catalyst 9500 Series, this fixed-core switch is purpose-built for high-performance campus backbones, data center aggregation, and software-defined networking (SDN) deployments.

With 24 x 25 Gigabit Ethernet (25G) ports and 4 x 100 Gigabit Ethernet (100G) QSFP28 uplinks, the C9500-24Y4C-A provides unmatched performance for bandwidth-intensive applications, cloud connectivity, and high-density networking scenarios. It also supports Cisco DNA Center, Software-Defined Access (SD-Access), and advanced Layer 3 features — enabling seamless automation, enhanced security, and simplified management.

🔧 Key Technical Specifications

Hardware & Performance:

• Model: Cisco Catalyst C9500-24Y4C-A

• Ports:

  • 24 × 25G SFP28 ports for high-speed access or aggregation

  • 4 × 100G QSFP28 uplink ports for core and backbone connectivity

• Switching Capacity: Up to 6.4 Tbps

• Forwarding Rate: Up to 4.76 Bpps

• Latency: Sub-microsecond latency for high-performance environments

System Resources:

• CPU: Quad-core x86 2.4 GHz processor

• Memory: 16 GB DRAM

• Flash Storage: 16 GB

• Form Factor: 1RU rack-mountable switch

• Dimensions: 1.72 x 17.5 x 17.5 in

• Weight: ~22.5 lbs

Software & Features:

• Operating System: Cisco IOS XE – modular, programmable, and SDN-ready

• Software Image: Network Advantage (A SKU)

• Advanced Networking: Layer 2 and Layer 3 routing, MPLS, VXLAN, EVPN, IPv4/IPv6 dual-stack

• Security: MACsec-256 encryption, TrustSec, segmentation, secure boot, and encrypted traffic analytics

• Automation: Cisco DNA Center, model-driven telemetry, and open APIs for programmability

• Virtualization: Network slicing, VRF, and container-based services

High Availability & Reliability:

• Redundant hot-swappable power supplies and fans

• In-Service Software Upgrade (ISSU) support

• Nonstop forwarding (NSF) and stateful switchover (SSO) for maximum uptime

🌐 Ideal Use Cases

• Campus core and aggregation layer switching

• Data center top-of-rack or aggregation switch

• Multi-gigabit cloud connectivity and high-speed backbone networks

• Software-Defined Access (SD-Access) and Cisco DNA environments

The Cisco C9500-24Y4C-A delivers industry-leading performance, intelligent automation, and advanced security for modern enterprise networks. Its combination of 25G/100G high-speed interfaces, programmable architecture, and cloud-ready capabilities makes it the ideal choice for enterprises seeking to modernize their core network infrastructure and support future digital transformation initiatives.