Cisco C9500-24Y4C-A Full Official English Product Description
Product Overview
The Cisco Catalyst C9500-24Y4C-A is a 1RU fixed high-density core & aggregation switch preloaded with Network Advantage perpetual license, belonging to Cisco flagship Catalyst 9500 enterprise switching family. Built on UADP 3.0 programmable ASIC, multi-core x86 CPU and Cisco IOS XE operating system, it combines 24 multi-rate 25G downlink ports and 4 high-speed 100G uplink ports to deliver future-proof non-blocking performance for modern 25G access, leaf-spine data center and large campus core architectures. It delivers complete Layer 3 routing, hardware zero-trust security, full automation and StackWise Virtual virtual chassis redundancy, designed for bandwidth-intensive workloads like cloud, IoT, video conferencing and AI data pipelines.
C9500-24Y4C-A Front Panel
Port Configuration
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24 × non-blocking SFP28 multi-rate ports: auto-support 1G / 10G / 25G fiber transceivers
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4 × QSFP28 uplink ports: native 40G / 100G dual-speed support for high-bandwidth backbone interconnection
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Out-of-band management interfaces: 1×RJ45 console, 1×Mini-USB console, 1×USB Type-A, 1×dedicated 1G out-of-band management port
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All fiber-only design without copper/PoE ports, fully optimized for high-speed optical interconnection
Core Hardware Specifications
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Switching Capacity: 2.0 Tbps full-duplex non-blocking
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Forwarding Rate: 1,000 Mpps wire-speed forwarding (64-byte frame)
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Form Factor: 1U rack-mount, front-to-back airflow
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Memory & Storage: 16 GB DDR4 DRAM, 16 GB SSD flash, large shared deep packet buffer for burst traffic absorption
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Virtualization & Stacking: StackWise Virtual (2 physical switches virtualized as single logical chassis); compatible with StackWise-480 multi-unit stacking
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Power & Cooling: Dual hot-swappable redundant 650W AC power supplies; N+1 hot-swappable fan trays
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Environmental: Operating temperature 0°C–40°C; storage -20°C–65°C; humidity 5%–90% non-condensing
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MTBF: Industry-leading reliability for 24/7 mission-critical core network operation
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Jumbo Frame Support: Up to 9216 bytes
Scalability Table Capacities
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MAC Address Table: 64,000 entries
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IPv4 Routes: Up to 256,000 (direct + indirect)
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IPv6 Routes: Up to 256,000 (direct + indirect)
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Combined IPv4/IPv6 Multicast Routes: 48,000
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Hardware-Accelerated Security ACLs: 18,000 entries
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Hardware-Accelerated QoS ACLs: 18,000 entries
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Flexible NetFlow Records: Up to 512,000
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Supported VLANs: 4,094 VLAN IDs, full SVI Layer 3 inter-VLAN routing
Full Feature Suite – Network Advantage (A License)
Complete Advanced Layer 3 Routing
Full enterprise routing protocol stack: BGP, multi-area OSPF, full EIGRP, IS-IS, RIP, PIM-SM/SSM, HSRP, VRRP, MPLS L2/L3 VPN, EVPN, VRF-lite multi-tenant segmentation, policy-based routing (PBR), segment routing, NAT/PAT
Hardware-Accelerated Zero-Trust Security
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256-bit MACsec port encryption on all interfaces
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Cisco TrustSec SGT micro-segmentation, native ISE integration
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Secure boot, Trust Anchor module, image signature verification
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802.1X, CoPP control plane protection, hardware ACL filtering, threat defense logging
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SD-Access fabric ready for enterprise zero-trust campus segmentation
Automation & Programmability
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NETCONF / RESTCONF / gNMI model-driven telemetry
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Python Guest Shell, on-board container application hosting
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Full compatibility with Cisco DNA Center for Intent-Based Networking, zero-touch provisioning, fabric orchestration and lifecycle management
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Embedded Event Manager (EEM), comprehensive API ecosystem
Enterprise-Grade High Availability
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SSO/NSF graceful restart, hitless ISSU firmware upgrade without traffic interruption
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Cross-stack LACP link aggregation, stateful failover via StackWise Virtual
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Hot-swap redundant power supplies and fans for non-disruptive maintenance
Advanced QoS & Multicast Optimization
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Hierarchical QoS, traffic policing/shaping, WRED congestion avoidance
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Hardware multicast replication for IPTV, large-scale video streaming and remote meeting traffic
Typical Deployment Scenarios
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Large enterprise campus aggregation layer with 25G downlink access and 100G core uplinks
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Medium-to-large data center leaf-spine fabric with mixed 25G server and 100G spine interconnections
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Inter-building high-speed fiber backbone core
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SD-Access fabric border node and distribution layer
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Hybrid cloud gateway with high-density multi-gigabit fiber connectivity
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Bandwidth-heavy environments: media production, AI computing clusters, financial trading networks
Short Catalog Version (For BOM & Quotation)
Cisco C9500-24Y4C-A Catalyst 9500 Switch, 24×1/10/25G SFP28 + 4×40/100G QSFP28, Network Advantage License
1RU high-density non-blocking core aggregation switch powered by UADP 3.0 ASIC, 2.0 Tbps switching capacity, dual redundant AC power supplies, pre-installed Network Advantage IOS XE license. Supports full Layer 3 routing, hardware MACsec encryption, TrustSec micro-segmentation, SD-Access fabric, StackWise Virtual virtual chassis and full Cisco DNA Center automation, ideal for modern 25G campus aggregation and leaf-spine data center deployments.
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