Cisco C9500-24Y4C-M Full English Product Description
Product Overview
The Cisco Catalyst C9500-24Y4C-M is a 1RU high-density fixed aggregation/core switch with DNA Essentials Managed Subscription licensing model, belonging to the Catalyst 9500 flagship enterprise switching lineup powered by UADP ASIC and Cisco IOS XE operating system. It delivers flexible multi-speed 1/10/25G downlinks paired with high-bandwidth 40/100G uplinks, built for modern hybrid campus aggregation, high-performance data center leaf nodes, and multi-speed server/storage access deployments. The "-M" suffix denotes a managed subscription bundle that includes DNA automation, monitoring, and lifecycle management services rather than perpetual Network Essentials/Advantage licenses.
Port Configuration
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24 × SFP28 multi-rate downlink ports: auto-negotiate 1G / 10G / 25G fiber connectivity
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4 × QSFP28 high-speed uplink ports: support 40G or 100G transceivers for backbone interconnection
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Out-of-band management interfaces: RJ45 console, Mini-USB console, USB Type-A, dedicated 1G Ethernet OOB management port
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All ports support hardware MACsec encryption, LACP, jumbo frames up to 9216 bytes
Core Hardware Specifications
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Switching Capacity: 1.6 Tbps full-duplex non-blocking
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Forwarding Rate: 1200 Mpps wire-speed packet forwarding
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Form Factor: 1U rack-mount, front-to-back airflow standard; reverse airflow optional
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Compute & Storage: 4-core 2.4GHz x86 CPU, 16 GB DDR4 DRAM, 16 GB SSD flash storage, large unified deep packet buffer for burst traffic absorption
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Stacking & Virtualization: StackWise-480 stacking (480 Gbps bandwidth, up to 8 switches per stack); StackWise Virtual dual-chassis redundancy
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Power & Cooling: Dual hot-swappable platinum-efficiency AC power supply slots; N+1 redundant field-replaceable fan trays for non-disruptive maintenance
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Environmental: Operating temperature 0°C–40°C; storage -20°C–65°C; 5%–90% non-condensing relative humidity
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Reliability: Extended MTBF for 24/7 continuous core network operation
Scalability Table Capacities
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MAC Address Table: 64,000 entries
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IPv4 Routes: 64,000 indirect routes + 32,000 host routes
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IPv6 Routes: 32,000 indirect routes + 16,000 host routes
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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 Hardware Records: Up to 512,000
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VLAN Support: 4,094 VLAN IDs with full SVI Layer 3 inter-VLAN routing
C9500-24Y4C-M Subscription Feature Suite (DNA Essentials Managed)
Layer 2 & Base Layer 3 Routing
Complete Layer 2 toolkit: STP/RSTP/MSTP, LACP, Q-in-Q, Private VLAN, SPAN/RSPAN/ERSPAN
Core dynamic routing: Static routing, RIP, single-area OSPF, EIGRP stub, HSRP, VRRP; dual-stack IPv4/IPv6 forwarding
Enterprise Security (Hardware Accelerated)
Secure boot, Trust Anchor Module, image signature validation
802.1X port authentication, 256-bit MACsec line-rate encryption, CoPP control-plane protection
Standard ACL filtering, zero-touch provisioning (ZTP), baseline threat traffic policing
DNA Managed Subscription Key Differentiators (-M Model)
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Cisco Catalyst Center (DNA Center) Essentials Subscription
Full access to intent-based automation, network discovery, topology visualization, wired assurance telemetry, and device lifecycle management under recurring subscription terms
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Cloud Monitoring Support
Compatible with Catalyst Cloud Monitoring for remote visibility, alerting, and performance analytics without on-prem DNA hardware
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Simplified License Lifecycle
No perpetual software license purchase upfront; subscription covers feature enablement, software image upgrades, and technical entitlement during contract term
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Programmability & Automation
CLI, Web UI, SNMPv2/v3, NETCONF/YANG, RESTCONF, Python Guest Shell, EEM event manager; full telemetry streaming for observability
High Availability
SSO/NSF graceful restart, cross-stack LACP aggregation, ISSU hitless stacking firmware upgrades
Hot-swappable redundant power supplies and fans for live maintenance
QoS & Multicast
Hierarchical QoS scheduling, traffic policing/shaping, WRED congestion control
PIM-SM/SSM multicast optimized for video conferencing, IPTV and media streaming workloads
Key Differences vs Perpetual E/A Models
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Licensing Model: C9500-24Y4C-M = DNA Essentials Managed Subscription (recurring term license); C9500-24Y4C-E = permanent Network Essentials perpetual license; C9500-24Y4C-A = permanent Network Advantage perpetual license
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Feature Boundary: Matches Network Essentials base routing/security functions; advanced features (full BGP, multi-area OSPF, IS-IS, MPLS, TrustSec, SD-Access fabric) require upgrade to higher-tier DNA subscription add-ons
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Commercial Model: Subscription includes bundled DNA Center automation entitlement, whereas perpetual E/A switches require separate DNA subscription purchases
Typical Deployment Scenarios
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Enterprise campus aggregation layer with mixed 1G/10G/25G fiber access and 40/100G backbone uplinks
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Medium data center leaf switches connecting 25G servers/storage to 100G spine core
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Multi-speed building distribution nodes for IoT, high-density wireless AP aggregation
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Organizations preferring operational subscription billing over upfront perpetual license capital expenditure
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Networks requiring centralized DNA Center automation, assurance and cloud monitoring
Short Catalog Version (For BOM & Quotation)
Cisco C9500-24Y4C-M Catalyst 9500 Switch, 24×1/10/25G SFP28 + 4×40/100G QSFP28, DNA Essentials Managed Subscription
1RU multi-rate aggregation/core switch with 24-port 1/10/25G SFP28 downlinks and 4-port 40/100G QSFP28 uplinks, UADP ASIC, 1.6Tbps switching capacity, StackWise-480 stacking, dual redundant platinum AC power, DNA Essentials recurring managed subscription including Catalyst Center automation & network assurance, base Layer2/3 routing and hardware MACsec security, designed for hybrid campus and medium data center multi-speed fiber aggregation deployments.
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