Cisco WS-C3850-48P-L 48 Port Switch Catalyst 3850 Managed Refurbished

In the world of networking, the Cisco WS-C3850-48P-L 48 Port Switch is a powerful and versatile device. This managed switch is part of Cisco's Catalyst 3850 series, designed to meet the evolving demands of modern networks. In this article, we will delve into the specifics of the Cisco WS-C3850-48P-L switch, exploring its features, benefits, and use cases.

The Cisco WS-C3850-48P-L is a 48-port managed switch. It is a member of the Cisco Catalyst 3850 series, which is renowned for its robust performance, reliability, and scalability. This switch is designed for a variety of network environments, including small to medium-sized businesses, enterprise networks, and data centers. One of the standout features of this switch is its Power over Ethernet (PoE+) capabilities, making it a versatile choice for businesses that rely on Power over Ethernet to power and connect devices like IP phones, wireless access points, and IP cameras.

Let's take a closer look at the key features of the Cisco WS-C3850-48P-L:

• 48 Ports: This switch provides a total of 48 Ethernet ports, allowing you to connect a multitude of devices, from computers and printers to IP phones and security cameras.
• PoE+ Support: PoE+ (Power over Ethernet Plus) is a feature that enables the switch to provide both data and power to connected devices. This is particularly useful for devices like IP phones and wireless access points, eliminating the need for separate power sources.
• Managed Switch: The Cisco WS-C3850-48P-L is a managed switch, which means it offers advanced features like VLAN support, Quality of Service (QoS) settings, and remote management options.
• Rack-Mountable: The switch is designed to be rack-mounted, which is common in data center and server room environments. It helps save space and keeps the networking equipment organized.
• High Performance: The switch boasts impressive performance with high data transfer rates, ensuring that your network runs smoothly and efficiently.
• Scalability: You can expand your network by adding more Cisco Catalyst switches, creating a scalable network infrastructure to accommodate your growing needs.
• Layer 2 and Layer 3 Features: The Cisco WS-C3850-48P-L supports both Layer 2 and Layer 3 networking, making it suitable for various network configurations and applications.

Now that we've covered the features of the Cisco WS-C3850-48P-L switch, let's explore the benefits of incorporating this device into your network infrastructure:

• Simplified Network Management: The Cisco WS-C3850-48P-L offers advanced management features that make it easier to configure, monitor, and maintain your network. With support for protocols like SNMP and remote management capabilities, network administrators can efficiently manage the switch and connected devices.
• PoE+ for Convenience: The PoE+ feature eliminates the need for separate power sources for PoE-enabled devices. This not only simplifies installation but also reduces cable clutter and the associated costs.
• High Reliability: Cisco is known for its reliability and durability. The Cisco WS-C3850-48P-L is no exception. It's built to withstand the demands of 24/7 operation, making it a suitable choice for critical network applications.
• Improved Performance: With high data transfer rates and support for features like QoS, the switch ensures that your network performs at its best, even during peak usage.
• Enhanced Security: Cisco's Catalyst series switches come with a range of security features, including Access Control Lists (ACLs) and port security, to help safeguard your network from unauthorized access and threats.
• Scalability: As your business grows, the Cisco WS-C3850-48P-L can easily expand with it. You can add more switches to your network to accommodate new devices and users.
• Layer 3 Routing: The ability to perform Layer 3 routing in addition to Layer 2 switching gives you more flexibility in your network design and can help optimize traffic flow.

The Cisco WS-C3850-48P-L switch is a versatile device suitable for a variety of use cases. Here are a few scenarios where this switch excels:

• Business Offices: Small to medium-sized businesses can benefit from the Cisco WS-C3850-48P-L switch by simplifying their network infrastructure and reducing the costs associated with separate power sources for devices like IP phones.
• Education: Schools and universities often have a multitude of devices connected to their networks, including computers, printers, and wireless access points. The PoE+ capability of this switch simplifies device management in educational institutions.
• Healthcare: Hospitals and healthcare facilities rely on secure and efficient networks for patient care and administrative tasks. The Cisco WS-C3850-48P-L can handle the demands of a healthcare environment while ensuring power to vital equipment.
• Retail: In retail environments, this switch can power and connect point-of-sale (POS) systems, security cameras, and wireless access points, making it an essential component for modern retail operations.
• Data Centers: In data centers, where performance, reliability, and scalability are paramount, the Cisco WS-C3850-48P-L can be a core component of the network infrastructure.
• Hospitality: Hotels and resorts require a robust network to support guest services, such as Wi-Fi and room automation systems. The Cisco WS-C3850-48P-L helps ensure a seamless guest experience.

• Access the Switch: Connect a computer to the switch using an Ethernet cable and access the switch's management interface using a web browser. You may need to enter the default IP address or configure one.
• Log In: Enter your login credentials to access the switch's configuration interface. The default username and password should be changed for security purposes.
• Configure VLANs: Set up VLANs to segment your network as needed. This is especially useful for separating different departments or devices for security and management purposes.
• PoE+ Settings: Configure PoE+ settings for the ports that require it. This includes specifying power limits for individual ports.
• Quality of Service (QoS): Set up QoS to prioritize certain types of traffic, ensuring critical applications get the necessary bandwidth.
• Security Settings: Implement security measures such as access control lists (ACLs) and port security to protect your network from unauthorized access.
• Monitoring and Alerts: Configure monitoring and alerts to keep an eye on the switch's performance and receive notifications of any issues.
• Save Configuration: After making all the necessary changes, be sure to save the configuration to ensure your settings are retained even after a reboot.

Troubleshooting Tips

• Check Connections: If a device is not working, verify that it's properly connected to the switch. Ensure that the cable is securely plugged in.
• LED Indicators: Pay attention to the LED indicators on the switch. They can provide valuable information about the switch's status.
• Review Logs: Access the switch's logs and error messages to identify the source of any issues.
• Firmware Errors: If the switch is behaving abnormally, consider reverting to a previous firmware version or updating to the latest one.
• Network Issues: If the problem extends beyond the switch, check the broader network for any issues that may be affecting connectivity.
• Contact Support: If troubleshooting efforts fail to resolve the issue, contact Cisco's support team for assistance.

Additional Considerations

Before purchasing the Cisco WS-C3850-48P-L switch, there are a few additional considerations to keep in mind:

• Budget: Determine your budget for network equipment, including switches, cables, and any necessary accessories. The Cisco WS-C3850-48P-L is a high-quality device but comes at a price.
• Network Requirements: Assess your current and future network requirements. Ensure that the switch you choose can accommodate your needs, including the number of devices and desired performance levels.
• Environmental Factors: Consider the environment in which the switch will be deployed. Ensure it has proper ventilation and temperature control to prevent overheating.
• Support and Warranty: Review the warranty and support options offered by Cisco. A good warranty can provide peace of mind in case of unexpected issues.
• Network Design: Plan your network design to ensure that the switch fits seamlessly into your infrastructure. Consider factors like cable runs and power distribution.

• Manufacturer: Cisco WS-C3850-48P-L
• Model Number or SKU# WS-C3850-48P-L
• Product Type: Switch

• Device Type: Managed Switch with 48 Ports, Stackable
• Enclosure Type: Desktop and Rack-mountable (1u)
• Interfaces: Gigabit Ethernet
• Ports: 48 x 10/100/1000 (PoE+)
• Power Over Ethernet (PoE): PoE+
• PoE Budget: 435 W
• Performance:
  • Switching Capacity: 176 Gbps
  • Stacking Bandwidth: 480 Gbps

• IPv4 Routes: 24,000
• Netflow Entries: 48,000
• Switched Virtual Interfaces (SVIs): 1,000
• MAC Address Table Size: 32,000 Entries
• Jumbo Frame Support: 9,198

• SNMP 1
• RMON 1
• RMON 2
• Telnet
• SNMP 3
• SNMP 2c
• SSH
• CLI

• Auto-negotiation
• ARP Support
• Trunking
• VLAN Support
• Auto-uplink (Auto MDI/MDI-X)
• IGMP Snooping
• Syslog Support
• IPv6 Support
• Rapid Spanning Tree Protocol (RSTP) Support
• Multiple Spanning Tree Protocol (MSTP) Support
• DHCP Snooping
• Dynamic Trunking Protocol (DTP) Support
• Port Aggregation Protocol (PagP) Support
• Trivial File Transfer Protocol (TFTP) Support
• Access Control List (ACL) Support
• Quality of Service (QoS)
• RADIUS Support
• Virtual Route Forwarding-Lite (VRF-Lite)
• MLD Snooping
• Dynamic ARP Inspection (DAI)
• PoE+
• STP Root Guard
• Uni-directional Link Detection (UDLD)
• Rapid Per-VLAN Spanning Tree Plus (PVRST+)
• IPv4 Support
• Shaped Round Robin (SRR)
• Link Aggregation Control Protocol (LACP)
• Remote Switch Port Analyzer (RSPAN)
• Layer 3 Load Balancing
• Energy Efficient Ethernet
• Cisco StackWise-480 Technology
• Cisco StackPower Technology
• Flexible NetFlow (FNF)

Compliant Standards

• IEEE 802.3
• IEEE 802.3u
• IEEE 802.3z
• IEEE 802.1D
• IEEE 802.1Q
• IEEE 802.3ab
• IEEE 802.1p
• IEEE 802.3af
• IEEE 802.3x
• IEEE 802.3ad (LACP)
• IEEE 802.1w
• IEEE 802.1x
• IEEE 802.1s
• IEEE 802.3at

• Power: AC 120/230 V (50/60 Hz)
• Power Redundancy: Optional

In summary, the Cisco WS-C3850-48P-L 48 Port Switch Catalyst 3850 Managed (PoE+) Rack-Mountable is a robust and versatile networking solution. With its extensive features, high reliability, and scalability, it's suitable for a wide range of applications in business, education, healthcare, retail, and data center environments. When properly installed, configured, and maintained, this switch can significantly enhance the performance and efficiency of your network. Whether you're looking to simplify network management, reduce cable clutter, or ensure a seamless user experience, the Cisco WS-C3850-48P-L is a solid choice.

By understanding its features, benefits, and how to install and maintain it, you can make an informed decision about whether the Cisco WS-C3850-48P-L is the right fit for your networking needs. Always remember to consider your specific requirements, budget, and long-term network goals when selecting networking equipment, and be prepared to adapt and expand your network as your business or organization grows.