Extreme C5K125-24P2 | Managed Layer 4 Gigabit Ethernet Switch
Product Overview
The Extreme C5K125-24P2 is a high-performance, stackable Gigabit Ethernet switch designed to meet the demanding requirements of modern network environments. As part of the Extreme Networks C-Series, this switch offers robust performance, advanced features, and exceptional reliability, making it an ideal solution for both enterprise and industrial applications.
With 24 ports supporting Power over Ethernet (PoE) and an additional 2 combo SFP ports and 2 SFP+ ports, the Extreme C5K125-24P2 is designed to provide high-density connectivity and scalable bandwidth. Its ability to deliver up to 30 watts per port makes it suitable for powering a variety of devices, including IP cameras, access points, and VoIP phones. The switch also supports advanced Layer 2 and Layer 3 features, ensuring seamless integration into complex network architectures.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | Extreme C5K125-24P2 |
| Manufacturer | Extreme Networks |
| Product Type | Managed Layer 4 Gigabit Ethernet Switch |
| Port Configuration | 24 x 10/100/1000 PoE ports (802.3af/at) |
| Throughput Capacity | 65.5 Mpps (switch) / 523.8 Mpps (stack) |
| Switching Capacity | 88 Gbps (switch) / 704 Gbps (stack) |
| Stacking Capacity | 128 Gbps (switch) / 1,024 Gbps (stack) |
| Power Specifications | 850 watts per switch with up to 30 watts per port |
| Dimensions (H x W x D) | 1.73″ x 17.36″ x 14.51″ (4.4 cm x 44.1 cm x 36.85 cm) |
| Net Weight | 13.45 lbs (6.10 kg) |
| Power Requirements | 100-240 VAC, 50-60 Hz |
| Environmental | Operating Temperature: 32°F to 122°F (0°C to 50°C) |

Key Features and Benefits
The Extreme C5K125-24P2 is equipped with advanced features that enhance its performance and reliability in demanding network environments. Its support for high-power PoE (up to 30 watts per port) makes it an ideal solution for powering demanding devices such as PTZ cameras and high-power access points. The switch also offers comprehensive Layer 2 and Layer 3 features, including IGMP, OSPF, VRRP, and VLAN support, ensuring seamless integration into complex network architectures.
One of the key strengths of the Extreme C5K125-24P2 is its ability to provide high-density connectivity in a compact 1U form factor. This makes it suitable for deployment in space-constrained environments such as wiring closets and data centers. Additionally, the switch’s stacking capabilities allow for easy scalability and management of multiple switches as a single logical unit.
Application Scenarios
The Extreme C5K125-24P2 is well-suited for a variety of applications, including enterprise networks, industrial environments, and smart city deployments. In enterprise settings, it can be used to provide high-speed connectivity and power to IP phones, wireless access points, and other network devices. In industrial environments, the switch’s rugged design and high-power PoE capabilities make it ideal for powering surveillance cameras and other IoT devices. Additionally, its support for advanced routing protocols and QoS features ensures reliable and efficient data transmission in smart city deployments.
Related Models
Extreme C5K125-24 – A non-PoE variant with 24 x 10/100/1000 ports, suitable for environments where PoE is not required.
Extreme C5K125-48P2 – A higher-density PoE variant with 48 x 10/100/1000 ports, ideal for large-scale deployments.
Extreme C5K125-48 – A non-PoE variant with 48 x 10/100/1000 ports, offering increased port density for high-density environments.
Installation and Maintenance
When preparing for the installation of the Extreme C5K125-24P2, ensure that the physical space is adequate to accommodate its dimensions. Proper grounding and environmental considerations, such as temperature and humidity, should also be taken into account to ensure optimal performance. The switch is designed for 1U rack mounting, which provides a secure and organized installation solution.
Regular maintenance of the Extreme C5K125-24P2 is crucial to ensure its long-term reliability and performance. It is recommended to perform routine checks on the switch’s firmware and hardware, including verifying connections and inspecting for any signs of wear or damage. Utilizing the diagnostic tools provided by the switch can help identify potential issues before they become critical. Replacement intervals for consumable parts, such as fans and power supplies, should be based on the manufacturer’s guidelines and the specific operating conditions of the installation site.
Product Warranty
The Extreme C5K125-24P2 is backed by a one-year warranty, covering any manufacturing defects or malfunctions. Our free replacement service ensures that customers receive prompt and hassle-free support in case of any issues. We have a global support network that is dedicated to assisting customers with technical inquiries, troubleshooting, and after-sales service. Our confidence in the quality of our products, combined with our commitment to customer satisfaction, makes us a reliable partner for all your networking needs.









