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C9500-48Y4C-A – 48 x 25G SFP – 4 x 100G uplink – core and aggregation switch
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C9500-48Y4C-A Description
Cisco C9500-48Y4C-A is the flagship 25G/100G high-performance core and aggregation switch in the Catalyst 9500 Series. It delivers 48 SFP28 downlinks and 4 QSFP28 uplinks, providing 3.2 Tbps of non-blocking switching and 1 Bpps forwarding throughput.Powered by the Cisco UADP 3.0 ASIC, this model supports MPLS L3VPN, EVPN, VRF-Lite, Segment Routing, and other advanced Layer 3 services available under the Network Advantage license. It features StackWise Virtual for multichassis redundancy, Secure Boot and 256-bit MACsec encryption for hardware-level security, and runs Cisco IOS XE software for full programmability and telemetry.Ideal for large enterprise campus cores and data-center edge deployments requiring high density, advanced routing, and automated operations.
Product Performance
Uplink Ports
Switching capacity
Forwarding rate
Key Features
High-Density 25G Core Switching
Delivers 48 × 25G SFP28 ports and 4 × 100G uplinks for campus or data-center aggregation requiring massive throughput and low latency.
Advanced Routing and Segmentation
Supports MPLS L3VPN, EVPN, VRF-Lite, and Segment Routing for large-scale multi-tenant and hybrid cloud architectures.
StackWise Virtual High Availability
Two switches operate as one logical system with SSO and ISSU for zero-downtime upgrades and resilient operations.
Secure and Trusted Infrastructure
Features Secure Boot, Trust Anchor Module, and MACsec-256 encryption for full data-plane protection.
Programmability and Automation
Cisco IOS XE and UADP 3.0 enable hardware telemetry, open APIs, and policy-based automation with Catalyst Center.
Compact 1 RU Energy-Efficient Design
Front-to-back airflow, dual hot-swappable PSUs and fan modules simplify maintenance and lower operational costs.
Applications Scenarios
Enterprise Campus Core / Distribution
Aggregates dozens of 25G access switches into 100G redundant core links.
Data Center Edge / Leaf-Spine Fabric
Acts as a leaf or border node with MPLS and EVPN support for multi-tenant workloads.
Service Provider and Financial Networks
Delivers carrier-grade routing and encryption for mission-critical applications.
Product Comparison
|
Parameter |
C9500-48Y4C-A | ||
|---|---|---|---|
|
Downlink Ports |
48 × 1/10/25G SFP28 |
48 × 1/10/25G SFP28 |
24 × 1/10/25G SFP28 |
|
Uplink Ports |
4 × 40/100G QSFP28 |
4 × 40/100G QSFP28 |
4 × 40/100G QSFP28 |
|
ASIC |
Cisco UADP 3.0 |
Cisco UADP 3.0 |
Cisco UADP 3.0 |
|
Switching Capacity |
3.2 Tbps |
3.2 Tbps |
2.0 Tbps |
|
Forwarding Rate |
1 Bpps |
1 Bpps |
1 Bpps |
|
License Tier |
Network Advantage |
Network Essentials |
Network Advantage |
|
Advanced Routing |
MPLS, EVPN, SR, VRF-Lite |
Basic IPv4/IPv6 |
MPLS, EVPN, SR |
|
StackWise Virtual |
Supported |
Supported |
Supported |
|
MACsec |
256-bit |
256-bit |
256-bit |
|
Power Supply |
Dual 650 W AC |
Dual 650 W AC |
Dual 650 W AC |
|
Dimensions |
1 RU (17.5 × 18 in) |
1 RU (17.5 × 18 in) |
1 RU (17.5 × 18 in) |
|
Weight |
9.96 kg |
9.96 kg |
9.52 kg |
C9500-48Y4C-A Switch Front Panel
|
1 |
48 1G/10G/25G SFP28 ports |
5 |
USB mini Type B console port |
|
2 |
Uplink ports |
6 |
RFID (Optional) |
|
3 |
Ethernet management port |
7 |
Console port (RJ-45 Serial) |
|
4 |
Reset button |
8 |
USB 3.0 host port |
C9500-48Y4C-A Switch Rear Panel
The switch rear panel includes StackWise connectors, StackPower or XPS connectors, ports, fan modules, and power supply modules.
Components Delivered in the Shipping Box
The shipping box contains the model of the switch you ordered and other components needed for installation. Some components are optional, depending on your order.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model / License | C9500-48Y4C-A (Network Advantage) | Family | Catalyst 9500 High-Performance Series |
| Downlink Ports | 48 × 1G/10G/25G SFP28 | Uplink Ports | 4 × 40G/100G QSFP28 (fixed) |
| ASIC | Cisco UADP 3.0 programmable ASIC | Architecture | Line-rate non-blocking switching |
| Switching Capacity | 3.2 Tbps (full-duplex) | Forwarding Rate | 1 Bpps (64-byte frames) |
| MAC Address Table | 64 000 entries | IPv4 / IPv6 Routes | 256 000 each (direct + indirect) |
| VLAN IDs | 4094 | Jumbo Frames | 9216 bytes |
| Routing Features | MPLS L3VPN, EVPN, VRF-Lite, Segment Routing | Dynamic Protocols | BGP, OSPF, IS-IS, EIGRP |
| High Availability | StackWise Virtual, SSO, ISSU | Virtual Chassis | Two devices act as one logical system |
| Security | Trust Anchor, Secure Boot, MACsec-256 | QoS | Hierarchical QoS, 2-level scheduling |
| Automation | NETCONF, RESTCONF, gNMI, Model-Driven Telemetry | Management | Cisco Catalyst Center / Meraki Cloud Monitoring |
| Operating System | Cisco IOS XE 16.8.1a or later | Licensing | Smart License – Network Advantage / DNA Subscription |
| Power Supply | Dual 650 W AC (C9K-PWR-650WAC-R) | Airflow | Front-to-Back (C9K-T1-FANTRAY × 4) |
| MTBF | ≈ 336 780 hours | Environment | 0 °C – 40 °C; 10 – 95 % RH (non-condensing) |
| Dimensions (H×W×D) | 1.73 × 17.5 × 18.0 in (4.39 × 44.45 × 45.72 cm) | Weight | 9.96 kg (fully loaded) |
| Compliance | UL 60950-1, EN 60950-1, FCC Class A | Warranty | Enhanced Limited Lifetime (E-LLW) |
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