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C9500-48Y4C-E – 48 x 25G SFP – 4 x 100G uplink – core and aggregation switch
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C9500-48Y4C-E Description
Cisco C9500-48Y4C-E is a high-density 25G/100G enterprise core and aggregation switch in the Catalyst 9500 High-Performance Series.It features 48 SFP28 downlinks and 4 fixed QSFP28 uplinks, delivering up to 3.2 Tbps of switching capacity and 1 Bpps forwarding performance for large campus or data-center cores.Powered by the Cisco UADP 3.0 programmable ASIC and running Cisco IOS XE, the C9500-48Y4C-E supports advanced telemetry, StackWise Virtual resiliency, and 256-bit MACsec encryption for end-to-end security. It integrates with Cisco Catalyst Center and Meraki Cloud Monitoring for automation and visibility, making it ideal for 25G aggregation and 100G backbone migration in modern enterprise networks.
Product Performance
Uplink Ports
Switching capacity
Forwarding rate
Key Features
High-Density 25G Aggregation
Offers 48 × SFP28 ports and 4 × 100G uplinks for massive bandwidth expansion in campus and data-center aggregation layers.
UADP 3.0 Programmable Silicon
Provides flexible QoS, ACL, and telemetry capabilities with hardware-based automation support.
StackWise Virtual High Availability
Two switches operate as a single logical unit, delivering SSO and ISSU for non-stop operation.
Secure and Trusted Infrastructure
Includes Trust Anchor Module and 256-bit MACsec encryption for complete data and control-plane protection.
Cloud and Automation Integration
Supports Cisco Catalyst Center and Meraki Cloud Monitoring with open APIs (NETCONF, gNMI).
Energy-Efficient Compact Design
1 RU chassis with dual PSUs and modular fans simplifies maintenance and reduces downtime.
Applications Scenarios
Enterprise Campus Core / Aggregation
Central L3 aggregation switch interconnecting multiple 25G access blocks with redundant 100G backbones.
Data Center Leaf / Border Node
Ideal for 25G ToR or leaf-spine deployments needing 100G interconnects and MACsec security.
Financial / Government Networks
Delivers secure, always-on connectivity with 256-bit encryption and carrier-grade resiliency.
Product Comparison
|
Parameter |
C9500-48Y4C-E | ||
|---|---|---|---|
|
Downlink Ports |
48 × 1/10/25G SFP28 |
24 × 1/10/25G SFP28 |
— |
|
Uplink Ports |
4 × 40/100G QSFP28 |
4 × 40/100G QSFP28 |
32 × 100G QSFP28 |
|
ASIC |
Cisco UADP 3.0 |
Cisco UADP 3.0 |
Cisco UADP 3.0 |
|
Switching Capacity |
3.2 Tbps |
2.0 Tbps |
6.4 Tbps |
|
Forwarding Rate |
1 Bpps |
1 Bpps |
2 Bpps |
|
License Tier |
Network Essentials |
Network Essentials |
Network Essentials |
|
StackWise Virtual |
Supported |
Supported |
Supported |
|
MACsec |
256-bit |
256-bit |
256-bit |
|
Power Supply |
Dual 650 W AC |
Dual 650 W AC |
Dual 1600 W AC |
|
Dimensions |
1 RU (17.5 × 18 in) |
1 RU (17.5 × 18 in) |
1 RU (17.5 × 21.2 in) |
|
Weight |
9.96 kg |
9.52 kg |
11.63 kg |
C9500-48Y4C-E 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-E 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-E (Network Essentials) | 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 |
| High Availability | StackWise Virtual, SSO, ISSU supported | Routing Protocols | OSPF, EIGRP, BGP, IS-IS, PIM |
| Security | Trust Anchor, Secure Boot, MACsec 256-bit | 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 Essentials / 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 | 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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