Cisco WS-C3750E-24PD-S 24 Ports Switch
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WS-C3750E-24PD-S Cisco Catalyst 3750-E 24-Ports Ethernet Refurbished

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Part Number#: WS-C3750E-24PD-S
List Price was: $507.69
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Short Description:
WS-C3750E-24PD-S Catalyst 3750-E 24-Ports 10/100/1000 RJ-45 PoE Manageable Layer4 Stackable Ethernet Switch with 2x Uplink Ports | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Advanced Features and Security

The ME-3400-24TS-D Cisco 3400-24TS 24-Ports Ethernet Access Layer 3 Switch is designed for scalable and secure networking. Some of the features that contribute to this include:

  • Layer 3 capabilities: The switch supports Layer 3 routing protocols such as OSPF and RIP, which allow you to create a more scalable and efficient network by dividing it into smaller, more manageable subnets.
  • VLANs: The switch supports VLANs, which allow you to segment your network into different logical groups. This can help to improve network security by isolating different types of network traffic and can also help to improve network performance by reducing broadcast traffic.
  • Quality of Service (QoS): The switch supports advanced QoS capabilities, which allow you to prioritize network traffic based on different criteria such as IP address, MAC address, and port number. This helps to ensure that critical network traffic is delivered with minimal delay and interruption.
  • Access Control Lists (ACLs): The switch supports ACLs, which allow you to define security policies that control who can access the network and what types of traffic are allowed. This can help to improve network security by blocking unauthorized access and controlling the flow of traffic.
  • Link Aggregation Control Protocol (LACP): LACP allows you to bundle multiple physical ports together to form a single logical link. This can help to increase the bandwidth available to your network and improve network performance, while also providing redundancy in case of a failure.
  • Security features: The switch supports advanced security features such as IEEE 802.1X port-based authentication and RADIUS, TACACS+ and Kerberos which can help to prevent unauthorized access to the network and protect against malicious attacks.

Remote Management and Monitoring

The WS-C3750E-24PD-S Cisco Catalyst 3750-E 24-Ports Ethernet Switch offers several ways to remotely manage and monitor the switch. Some of these include:

  • Cisco Network Assistant (CNA): CNA is a free software tool that allows you to manage and monitor multiple Cisco switches from a single interface. It provides a simple, intuitive interface that allows you to configure and troubleshoot the switch.
  • Cisco Prime Network Control System (NCS): Cisco Prime NCS is a comprehensive network management platform that allows you to manage and monitor Cisco switches, routers, and other network devices from a central location. It provides real-time monitoring and analytics, as well as automated troubleshooting and configuration management.
  • Simple Network Management Protocol (SNMP): SNMP is a widely used protocol for managing and monitoring network devices. The switch supports SNMP, which allows you to monitor the switch remotely using a network management system. This can help to ensure that the switch is running smoothly and troubleshoot any issues that may arise.
  • Secure Shell (SSH) and Telnet: SSH and Telnet are remote management protocols that allow you to access the switch remotely and configure it using a command-line interface. This can be useful for advanced troubleshooting and configuration tasks.
  • Remote SPAN (RSPAN): RSPAN allows you to monitor traffic on one or more remote switches from a central location. This is useful for troubleshooting and monitoring network traffic.

Reliability of Ethernet Switch

The WS-C3750E-24PD-S Cisco Catalyst 3750-E 24-Ports Ethernet Switch is a reliable network device that is widely used in enterprise environments. This switch is part of the Cisco Catalyst 3750-E series, which is known for its energy efficiency and advanced security features.

The 3750-E series also supports StackWise technology, which allows multiple switches to be connected together to function as a single, unified device for increased network scalability and redundancy. This provides a high level of availability for the network.

In addition, the switch supports advanced Quality of Service (QoS) features, which allow for the prioritization of network traffic to ensure that mission-critical applications receive the bandwidth they need.

Main Information about this Cisco WS-C3750E-24PD-S

  • Manufacturer: Cisco
  • Part Number or SKU# WS-C3750E-24PD-S
  • Product Line: Catalyst
  • Product Series: 3750-E
  • Product Type: Layer 4 Switch

Interfaces/Ports of Layer4 Ethernet Switch

  • Total Number of Network Ports: 24
  • Number of Stack Ports: 2
  • Stack Port: Yes
  • Number of Network (RJ-45) Ports: 24
  • Port/Expansion Slot Details: 24 x Gigabit Ethernet Network

Media & Performance for 24 Ports Switch

  • Connectivity Media Category 5 UTP 100/1000Base-T
  • Connectivity Media Category 4 UTP 10Base-T
  • Connectivity Media Category 3 UTP 10Base-T
  • Performance 65.5Mpps Forwarding Rate
  • Performance 64Gbps Stacking Bandwidth
  • Performance 95Mpps Forwarding Rate For 64-byte Packet
  • Performance 128Gbps Switching Fabric
  • Performance 68Gbps Backplane Speed

I/O Expansions of Manageable Switch

  • Number of Total Expansion Slots 2
  • Expansion Slot Type X2

Network & Communication

  • Layer Support: 2
  • Layer Support: 3
  • Layer Support: 4
  • Number of Stacks: 9

Management & Protocols

  • Manageable: Yes
  • Management-
  • Cisco IOS Software CLI
  • Cisco Network Assistant
  • CiscoWorks LAN Management Solution (LMS)
  • IEEE 802.1Q VLAN
  • IEEE 802.1p QoS
  • Telnet Interface
  • SNMP v1, v3, v2c


  • Standard Memory: 256 MB
  • Memory Technology: DRAM
  • Flash Memory: 64 MB

Power Description

  • Input Voltage: 110 V AC
  • Input Voltage: 220 V AC
  • Power Source: AC Adapter
  • Redundant Power Supply: Yes

Dimensions and Weight

  • Height: 1.8 Inch
  • Width: 17.5 Inch
  • Depth: 18.1 Inch
  • Weight (Approximate): 18.30 LBS


  • Catalyst 3750-E 24-Port Multi-Layer Ethernet Switch with PoE
  • Documentation
  • AC Power Cord
  • Console Cable
  • StackWise Cable
  • Two 19-inch Mounting Brackets
  • Cable Guide
  • Four Rubber Mounting Feet
  • Power Cord Retainer
  • Four number-12 Phillips Machine Screws
  • Twelve number-8 Phillips Flat-Head Screws
  • One Black Phillips Machine Screw
  • Ground Lug Screw and Ring Terminal

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.

Different Types of Switches

Networking switches vary widely depending on the number of devices they can support, network bandwidth/speed, and form factor. Switches for small offices will have anything between 4 and 8 ports and can fit on a desk. For larger office network implementation, switches may have 24 ports, 48 ports, 96 ports, and 128 ports and are rack-mountable between 1U and 4U. Switches come in different types depending on the network speed and tasks they support. These include 40/100 Gbps, 10 Gigabit (up to 10000 Mbps), Gigabit Ethernet (up to 1000 Mbps), Power over Ethernet, and Fast Ethernet (10/100 Mbps).

Unmanaged Switches

The unmanaged switches offer fixed configurations on a plug-and-play basis. It is the most basic switch and there are a few choices in the market. These switches are affordable, but the basic features make them inappropriate for enterprise applications.

Managed Switches

The number of features and level of functionality improves with managed switches, making them ideal for enterprise and business applications. These switches are built with the command-line interface for ease of configuration. Equally, they support SNMP agents that come in handy when troubleshooting network issues.

The security on managed switches is better and will protect different types of traffic. Other features include support for virtual LANs, IP routing, and quality of service settings. Managed switches are more expensive compared to all other types of switches.

Smart Switches

Smart switches refer to switches that possess more features than those unmanaged switches but do not have the full features of managed switches. Smart switches are more cost-effective than managed switches.

Some of the limitations of the smart switches are a lack of telnet access support, Web GUIs, and a lack of many features for VLANs. They are affordable compared to a fully managed switch and are suitable for a smaller computer network.

Modular Switches

Modular switches allow the addition of expansion modules as the network expands. The expansion modules allow for more networked devices but are application-specific. They may include wireless access points, firewalls, or network analysis tools. The flexibility of a modular networking switch comes at a higher cost.


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