Cisco SM-ES3G-24-P 24 Ports Service Module Switch
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Cisco SM-ES3G-24-P 24 Ports Service Module Switch Enhanced Refurbished

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Part Number#: SM-ES3G-24-P
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Short Description:
SM-ES3G-24-P 24 X 10/100/1000Base Enhanced Layer 3 Power Over Ethernet (PoE) Advanced Twisted Pair 24 Ports Ethernet Plug-In Module Service Module Managed Switch | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
Product Outline of the Cisco SM-ES3G-24-P 24 Ports Service Module Switch

The Cisco SM-ES3G-24-P is a 24-port Ethernet plug-in module designed to provide enhanced Layer 3 functionality. Each port supports 10/100/1000Base, making it versatile and suitable for various network environments. One of its key features is 24 ports Power over Ethernet (PoE), allowing the module to deliver power to connected devices over the Ethernet cable, eliminating the need for separate power sources.

Key Specifications for the Cisco Enhanced Layer 3 Po Service Module

Let's break down the key specifications of the Cisco SM-ES3G-24-P to gain a better understanding of its capabilities.

24 Ports

The module boasts 24 ports, providing ample connectivity options for devices in a network. The support for 10/100/1000Base ensures compatibility with a wide range of network devices, offering flexibility in deployment.

Layer 3 Functionality

Enhanced Layer 3 capabilities enable the module to make routing decisions, contributing to efficient data traffic management within the network. This is particularly important in large-scale deployments where routing plays a crucial role in optimizing data flow.

Power over Ethernet (PoE)

The inclusion of PoE is a significant feature of the Cisco SM-ES3G-24-P. With PoE, the module can supply power to connected devices such as IP cameras, VoIP phones, and wireless access points through the same Ethernet cable used for data transfer. This simplifies the deployment of networked devices by reducing the need for additional power sources.

Advanced Twisted Pair Technology

The module utilizes advanced twisted pair technology for Ethernet connections. This technology enhances signal integrity and reduces the risk of interference, contributing to a stable and reliable network infrastructure.

Managed Switch Capabilities

Being a managed switch, the Cisco SM-ES3G-24-P allows for granular control and configuration of network settings. This includes features such as VLAN support, Quality of Service (QoS) prioritization, and security measures, providing administrators with the tools needed to optimize network performance and security.

Use Cases and Deployment Scenarios

Understanding how the Cisco SM-ES3G-24-P can be effectively deployed is essential for network administrators. Let's explore some common use cases and deployment scenarios:

Enterprise Networks

In large enterprise networks, the module's 24 ports and Layer 3 capabilities make it suitable for connecting a variety of devices, including computers, printers, and servers. The PoE feature simplifies the deployment of IP phones and surveillance cameras, reducing the overall cabling complexity.

IP Surveillance Systems

The PoE support in the Cisco SM-ES3G-24-P makes it an ideal choice for IP surveillance deployments. With 24 PoE-enabled ports, the module can power multiple IP cameras, eliminating the need for separate power outlets and simplifying cable management.

Voice over IP (VoIP) Networks

In VoIP networks, the Cisco SM-ES3G-24-P's Layer 3 capabilities play a crucial role in efficient call routing. The PoE feature ensures that VoIP phones receive power through the Ethernet cable, streamlining the installation process.

Educational Institutions

For schools and universities, the module's 24 ports provide the necessary connectivity for classrooms, labs, and administrative areas. The Layer 3 functionality aids in managing traffic between different departments, while PoE simplifies the deployment of networked devices in educational environments.

Advanced Features and Capabilities

The Cisco SM-ES3G-24-P goes beyond basic networking functions, offering advanced features that contribute to a more efficient and secure network infrastructure.

VLAN Support

Virtual LAN (VLAN) support allows administrators to segment the network into distinct virtual networks, enhancing security and isolating broadcast domains. This is particularly useful in environments where different departments or user groups need separate network segments.

Quality of Service (QoS)

QoS capabilities enable administrators to prioritize certain types of network traffic, ensuring that critical applications receive the necessary bandwidth for optimal performance. This is crucial in environments where bandwidth-intensive applications coexist with regular data traffic.

Security Measures

The Cisco SM-ES3G-24-P incorporates security features such as Access Control Lists (ACLs) to control traffic flow and prevent unauthorized access. These measures contribute to the overall security posture of the network.

Power Options and Redundancy

The SM-ES3G-24-P Cisco 24 Ports Managed Switch Module has several power options and redundancy features to ensure that it is always available and functioning correctly.

One of the power options for the SM-ES3G-24-P is to use the internal power supply of the Cisco ISR G3 router that it is installed in. The router's power supply can provide enough power to the switch module. This is known as inline power, as the switch module uses the same power source as the router.

Another power option is to use an external power supply that can be connected to the switch module through an AC/DC power adapter. This provides an additional power source for the switch module and can be used as a backup power source in case of a failure in the internal power supply.

The SM-ES3G-24-P also supports power redundancy through the use of the Cisco Power over Ethernet (PoE) module. This module can provide power to the switch module through the Ethernet cables, eliminating the need for an external power supply. This also allows for redundancy, as the PoE module can provide power to the switch module even if the internal power supply fails.

Redundancy can also be provided at the link level, by using the Link Aggregation Control Protocol (LACP) feature. This allows the bundling of multiple physical links into a single logical link, increasing bandwidth and providing redundancy. If one of the physical links fails, the other links will continue to provide connectivity, minimizing downtime and interruption of service.

General Information for the Cisco SM-ES3G-24-P Service Module
  • Manufacturer: Cisco
  • Part Part Number or SKU# SM-ES3G-24-P
  • Product Type: Service Module
Technical Information
  • Application/Usage: Data Networking
  • Interfaces/Ports: 24 x 10/100/1000Base-T LAN
  • Interfaces/Ports Details: 24 x RJ-45 10/100/1000Base-T Network Auto-negotiation LAN
  • Layer 3 Switching
  • Layer 2 Switching
  • Power Over Ethernet (PoE)
  • Intrusion Detection System (IDS)
  • IPv6 Support
  • Access Control List (ACL) Support
  • Quality Of Service (QoS)
  • Dynamic ARP Inspection (DAI)


  • Connectivity Media: Twisted Pair
  • Data Transfer Rate: 1 Gbps Gigabit Ethernet
  • Data Transfer Rate: 100 Mbps Fast Ethernet
  • Data Transfer Rate: 10 Mbps Ethernet

In short, the Cisco SM-ES3G-24-P module is a versatile networking solution designed to enhance the capabilities of compatible Cisco switches. With its support for Power Over Ethernet, Layer 3 functionality, and advanced management features, the module empowers organizations to build scalable, resilient, and efficient network infrastructures. Whether deployed in enterprise environments, small to medium businesses, educational institutions, or healthcare facilities, the Cisco SM-ES3G-24-P module delivers reliable performance and flexibility to meet diverse networking requirements.

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

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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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