2025-07-25 BY
IN Industry trends

Product Overview

The Extreme B5K125-48P2 is a high-performance Layer 3 managed Ethernet switch designed for edge network applications in enterprise environments. It offers robust connectivity and advanced features, making it an ideal solution for organizations requiring reliable and efficient network infrastructure. This switch is part of the Extreme Networks B-Series, known for its high availability, performance, and advanced traffic management capabilities.
The B5K125-48P2 provides 48 Gigabit Ethernet ports with Power over Ethernet Plus (PoE+) support, along with two 10 Gigabit Ethernet uplink ports and two combo SFP ports. It is designed to meet the demanding requirements of modern business applications, supporting both IPv4 and IPv6 management protocols. The switch also features advanced management capabilities, including CLI, SNMP, RMON, and web-based management, making it suitable for enterprise-level network deployments.

Technical Specifications

Parameter Value
Product Model Extreme B5K125-48P2
Manufacturer Extreme Networks
Product Type Layer 3 Managed Ethernet Switch
Port Configuration 48 x 10/100/1000BASE-T PoE+ port
Throughput Capacity 101.2 Mpps (switch), 809.5 Mpps (stack)
Switching Capacity 136 Gbps (switch), 1,088 Gbps (stack)
Stacking Capacity 48 Gbps (switch), 384 Gbps (stack)
Aggregate Throughput Capacity 184 Gbps (switch), 1,472 Gbps (stack)
Power Supply 375 watts per switch with up to 30 watts per port
Dimensions (H x W x D) 4.4 cm (1.73”) x 44.1 cm (17.36”) x 36.85 cm (14.51”)
Weight 6.49 kg (14.30 lbs)
Operating Temperature 0°C to 50°C (32°F to 122°F)
Non-Operating Temperature -40°C to 70°C (-40°F to 158°F)
Humidity 5% to 95% non-condensing
Heat Dissipation 427 BTUs/Hr
Compliance IEEE 802.1AB, 802.1D, 802.1s, 802.1w, 802.3, 802.3at (PoE+), 802.1q (VLAN)

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Key Features and Benefits

The Extreme B5K125-48P2 offers several key features that make it a valuable addition to any enterprise network:
  • High-Density Connectivity: 48 Gigabit Ethernet ports with PoE+ support, ideal for powering IP cameras, wireless access points, and VoIP phones.
  • Advanced Traffic Management: Supports advanced QoS policies, VLAN services, and dynamic role-based policies, ensuring efficient traffic management and network segmentation.
  • Scalability: Supports stacking with other B-Series switches, providing up to 1,472 Gbps aggregate throughput capacity.
  • Redundant Power Supply: Compatible with external redundant power supplies, ensuring high availability and reliability.
  • Future-Ready: Supports IPv6 management and advanced Layer 3 routing capabilities, ensuring compatibility with future network requirements.

Application Scenarios

The Extreme B5K125-48P2 is well-suited for various applications, including:
  • Enterprise Networks: Provides robust connectivity for office environments, supporting multiple devices and ensuring efficient data flow.
  • Educational Institutions: Enhances network performance and reliability for schools and universities, supporting high-density user environments.
  • Retail and Hospitality: Offers reliable Wi-Fi coverage for retail stores and hotels, ensuring seamless connectivity for customers and staff.
  • Smart Buildings: Integrates with IoT devices, providing connectivity for smart building applications such as lighting control and energy management.

Related Models

  • B5K125-24P2: A 24-port version with PoE+, suitable for smaller deployments.
  • B5K125-48: A non-PoE version with 48 ports, ideal for environments where PoE is not required.
  • C5K125-48P2: A similar model with 48 ports and PoE+, part of the C-Series.

Installation and Maintenance

When installing the Extreme B5K125-48P2, ensure it is placed in a well-ventilated area and that the power supply is compatible with local electrical standards. Regular maintenance includes monitoring the switch’s performance via the management interface, updating the firmware to the latest version, and ensuring that the cooling fans are operating correctly.

Product Warranty

The Extreme B5K125-48P2 comes with a Limited Lifetime Warranty, which provides advanced hardware replacement with next business day shipment. This warranty ensures that customers receive reliable support and protection for their investment.