Cisco WS-C3550-24PWR-SMI 24 Ports Switch
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Cisco WS-C3550-24PWR-SMI Catalyst 24 Ports Switch Ethernet Refurbished

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Part Number#: WS-C3550-24PWR-SMI
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Short Description:
WS-C3550-24PWR-SMI Catalyst 3550 Series 24 Ports Ethernet Managed Rack-Mountable 10/100 Switch With 2 1000Base, X Port Uplinks | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
Details Information

The WS-C3550-24PWR-SMI is a Cisco Catalyst 3550 series managed switch. It has 24 Ethernet ports and is designed for use in enterprise-level networks.

The switch is managed, which means that it can be configured and monitored using a web interface or command-line interface (CLI). This allows network administrators to set up and control the switch's various features, including VLANs, Quality of Service (QoS), and security settings.

One of the key features of this switch is its Power over Ethernet (PoE) capability. This allows the switch to power devices such as IP phones and wireless access points through the Ethernet cable, eliminating the need for separate power supplies.

The switch also supports advanced features such as:

Layer 2 switching
  • The switch can forward and filter data based on MAC addresses, allowing it to create VLANs and control traffic between them.
Layer 3 routing
  • The switch can also perform IP routing, allowing it to forward data based on IP addresses and create multiple IP subnets.
Quality of Service (QoS)
  • The switch can prioritize certain types of network traffic, such as voice or video, to ensure that they are delivered with minimal delay and interruption.
  • This feature allows multiple switches to be connected and managed as a single logical unit, increasing the scalability and flexibility of the network.

The Cisco WS-C3550-24PWR-SMI Catalyst 3550 Series is a powerful and versatile Ethernet switch designed for efficient network management. With its 24 ports, rack-mountable design, and advanced features like Power over Ethernet (PoE) and Gigabit uplinks, this switch caters to the demands of modern network infrastructures.

Key Features24 Ports for Enhanced Connectivity
  • The Cisco WS-C3550-24PWR-SMI comes equipped with 24 Ethernet ports, providing a robust foundation for connecting multiple devices within a network. These ports support 10/100 Mbps, ensuring seamless data transfer for a variety of applications.
Power over Ethernet (PoE) Capability
  • One standout feature of this switch is its Power over Ethernet capability. PoE simplifies network installation by allowing the switch to deliver power and data over a single Ethernet cable. This is particularly beneficial for devices like IP cameras, VoIP phones, and wireless access points, eliminating the need for separate power sources.
Managed Switch for Enhanced Control
  • As a managed switch, the WS-C3550-24PWR-SMI provides administrators with greater control over their network. Through features such as VLAN (Virtual Local Area Network) support, QoS (Quality of Service), and SNMP (Simple Network Management Protocol) compatibility, users can optimize network performance, prioritize traffic, and monitor the network efficiently.
Rack-Mountable Design for Space Efficiency
  • The rack-mountable design of the switch allows for efficient use of space in server rooms or network closets. This is especially crucial in environments where space is limited, providing a neat and organized solution for network infrastructure.
Gigabit Uplinks for High-Speed Connectivity
  • With 2 1000Base-X port uplinks, the WS-C3550-24PWR-SMI ensures high-speed connectivity between switches or other network devices. This is essential for handling large amounts of data and supporting bandwidth-intensive applications, contributing to a smooth and responsive network experience.
Resiliency and High Availability
  • The WS-C3550-24PWR-SMI is a Cisco Catalyst switch that offers 24 ports of Ethernet connectivity and is designed for use in enterprise-level networks. The switch is a managed device, which means it can be configured and monitored through a web interface or command-line interface.
  • One of the key features of this product is its support for resiliency and high availability. This means that the switch has built-in features that help to ensure that the network remains up and running, even in the event of a failure or outage.
  • For example, the switch supports Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) which helps in loop prevention and redundancy, and also supports Hot Standby Router Protocol (HSRP) which allows for automatic failover to a secondary device in case the primary device fails.
  • Additionally, the switch also supports Power over Ethernet (PoE) which allows power to be delivered to devices such as wireless access points and IP phones over the Ethernet cables, eliminating the need for separate power cables and outlets.
Compliant Standards

The WS-C3550-24PWR-SMI is a Cisco Catalyst switch that has 24 ports of Ethernet and is managed, which means it can be configured and monitored using Cisco's network management software. This switch is compliant with several industry standards, including:

IEEE 802.3
  • This standard defines the physical layer and data link layer specifications for Ethernet networks. The switch is compliant with IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX, and IEEE 802.3ab 1000BASE-T standards, which means it can support various speeds of the Ethernet network.
IEEE 802.3af
  • This standard defines Power over Ethernet (PoE) specifications, which allows the switch to provide power to devices connected to it over the Ethernet cable.
IEEE 802.3at
  • This standard is also known as PoE+ and increases the maximum power output to 30 watts per port, providing more power for devices such as wireless access points and IP phones.
IEEE 802.3x
  • This standard defines flow control and full-duplex operation for Ethernet networks, which helps to prevent network congestion and improve network performance.
IEEE 802.1D
  • This standard defines the Spanning Tree Protocol (STP), which is a network protocol that helps prevent loops in a network by shutting down redundant links.
IEEE 802.1Q
  • This standard defines Virtual LANs (VLANs), which allow for the creation of multiple logical networks within a single physical network.
IEEE 802.1p
  • This standard defines Quality of Service (QoS) priorities, which can be used to prioritize different types of network traffic.
IEEE 802.1w
  • This standard defines Rapid Spanning Tree Protocol (RSTP), which is an evolution of STP that improves network convergence times.
IEEE 802.1s
  • This standard defines Multiple Spanning Tree Protocol (MSTP), which allows for the creation of multiple STP instances within a single network.
Main Specification about this WS-C3550-24PWR-SMI
  • Manufacturer: Cisco
  • Model Number or SKU# WS-C3550-24PWR-SMI
  • Product Line: Catalyst
  • Product Series: 3550
  • Type: Networking
  • Product Type: Ethernet Switch
Technical Feature for 24 Ports Switch
  • Number of Ports: 24
  • Fast Ethernet Port: Yes
  • Interfaces/Ports: 24 x RJ-45 10/100Base-TX LAN
  • Interfaces/Ports: 1 x RJ-45 Console Management
  • Form Factor: Rack-Mountable
  • RAM: 64 MB
  • Flash Memory: 16 MB
  • Features: Full duplex capability, uplink, auto-sensing per device, IP-routing, DHCP support, auto-negotiation, VLAN support, manageable, stackable
Performance of Catalyst C3550 Managed Switch
  • Connectivity Media: Category 3 UTP 10Base-T
  • Connectivity Media: Category 4 UTP 10Base-T
  • Connectivity Media: Category 5 UTP 10/100Base-TX
  • Performance: 8.8Gbps Switching Fabric
  • Performance: 4.4Gbps Forwarding Bandwidth at Layer 2 and Layer 3
  • Performance: 6.6Mpps Forwarding Rate for 64-byte Packet
I/O Expansions for this Ethernet Switch
  • Number of Expansion Slots: 2
  • Expansion Slots: (2 Total) GBIC
  • Modules: Not Included
Network & Communication
  • Address Table: 8K MAC Addresses
Power Details
  • Power Device: Power supply - integrated
  • Voltage Required: AC 120/230 V (50/60 Hz)
  • Power Consumption Operational: 525 Watts

In summary, the Cisco WS-C3550-24PWR-SMI Catalyst 3550 Series switch is a robust and feature-rich solution for building and managing modern networks. Its combination of 24 ports, Power over Ethernet capability, managed features, and Gigabit uplinks makes it a versatile choice for a variety of applications, from SMBs to educational institutions and surveillance systems. The switch's ease of installation, configuration options, and maintenance features contribute to its overall appeal as a reliable component of a network infrastructure. Whether you are looking to upgrade an existing network or establish a new one, the WS-C3550-24PWR-SMI is a compelling option that delivers on both performance and functionality.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.


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