Cisco WS-C3850-24XU-S Catalyst 3850 Series Switch
The Cisco WS-C3850-24XU-S Catalyst 3850 Series Switch is a high-performance enterprise-grade Layer 3 switch from Cisco Systems, designed to deliver advanced networking capabilities for modern campus, enterprise, and high-density environments.
This model features 24 Multi-Gigabit UPoE ports (1G/2.5G/5G/10G), enabling high-speed connectivity and power delivery to advanced devices such as Wi-Fi access points, IP phones, and IoT systems. Powered by Cisco’s UADP ASIC and StackWise-480 technology, it ensures superior scalability, performance, and reliability for mission-critical networks.
Key Features
- 24 x Multi-Gigabit Ethernet ports (1G/2.5G/5G/10G)
- Full UPoE (Universal Power over Ethernet) support (up to 60W per port)
- Cisco StackWise-480 (up to 480 Gbps stacking bandwidth)
- Modular uplink support (SFP / SFP+ modules)
- Layer 3 switching with IP Base software
- Unified wired and wireless network management
- Advanced security and QoS features
- 1RU rack-mountable enterprise design
- Redundant power supply support
Cisco WS-C3850-24XU-S Specifications Table:
| Specification | Details |
|---|
| Product Model | WS-C3850-24XU-S |
| Series | Cisco Catalyst 3850 Series |
| Switch Type | Layer 3 Managed Switch |
| Feature Set | IP Base |
| Ports | 24 × Multigigabit Ethernet (100M/1G/2.5G/5G/10G) UPoE Ports |
| PoE Capability | Cisco UPOE (Up to 60W per port) |
| Uplink Module Slot | 1 × Network Module Slot (optional uplinks) |
| Switching Capacity | Up to 92 Gbps |
| Forwarding Rate | Up to 500 Mpps |
| Stacking Technology | StackWise-480 |
| Stack Bandwidth | 480 Gbps |
| Maximum Stack Units | Up to 9 switches |
| DRAM (RAM) | 4 GB |
| Flash Memory | 2 GB |
| VLAN Support | Up to 4094 VLANs |
| Routing Features | IPv4 & IPv6 (Layer 3 routing) |
| Wireless Controller | Integrated (supports unified access) |
| QoS Support | Yes |
| Security Features | ACLs, MACsec encryption |
| Power Supply | 1100W AC (modular, default) |
| Redundant Power Support | Yes (1+1 PSU supported) |
| Form Factor | 1U Rack Mount |
| Dimensions (H×W×D) | Approx. 4.45 × 44.5 × 48.5 cm |
| Operating Temperature | 0°C to 45°C |
| Management Interfaces | RJ-45 Console, USB, MGMT Port |
| Stack Power Support | Yes |
Key Benefits
- High-speed multi-gig connectivity for modern enterprise devices
- Simplified network with wired + wireless convergence
- Scalable architecture with stacking support
- Reliable power delivery for PoE devices
- Ideal for high-density and performance-driven environments
How to Install Cisco WS-C3850-24XU-S
Step-by-step Installation Guide:
Unbox the Device
- Check switch, power cable, rack kit, and console cable.
Rack Mount Setup
- Install into a standard 19-inch rack using brackets.
Power Connection
- Connect AC power and turn on the switch.
Console Access
- Connect via console cable to a PC using PuTTY or Tera Term.
Initial Configuration
- Configure: IP address, Hostname, Admin password
Network Connection
- Connect Ethernet cables to devices (APs, servers, routers).
Insert Uplink Modules
- Install optional SFP/SFP+ modules for uplinks.
Configure VLAN & Routing
- Set VLANs, trunk ports, and routing protocols.
Save Configuration
- Use command: write memory
Tip: Ensure firmware and IOS XE version are updated before deployment.
Compatibility
The Cisco WS-C3850-24XU-S supports:
- Cisco Catalyst & Nexus switches
- Cisco wireless access points (Wi-Fi 5 / Wi-Fi 6)
- IP phones and PoE devices
- SFP / SFP+ uplink modules
- Network management tools like Cisco Prime
- Enterprise routers and firewalls
Best Use Cases
- Enterprise campus networks
- High-density office environments
- Data center access layer
- ISP infrastructure
- Smart building & IoT deployments
FAQ (Frequently Asked Questions)
Q1: Is WS-C3850-24XU-S a Layer 3 switch?
Yes, it supports Layer 3 routing with IP Base features.
Q2: Does it support 10G speed?
Yes, it supports up to 10 Gigabit per port.
Q3: What is UPoE?
UPoE delivers up to 60W per port, ideal for high-power devices.
Q4: Can I stack multiple switches?
Yes, up to 9 switches using StackWise-480.
Q5: Is it suitable for Wi-Fi 6 deployments?
Yes, multi-gig ports make it perfect for modern access points.
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