The Extreme 71K91L4-48 is a high-performance, managed Gigabit Ethernet switch designed for the Extreme Networks 7100 Series. This switch is part of the 7148T model line and offers robust performance and scalability for demanding network environments. It features 48 ports of 10/1000/10000BASE-T (10GBASE-T) and 4 QSFP+ ports for 10/40 Gigabit Ethernet uplinks, making it ideal for high-density networking applications.

The Extreme 71K91L4-48 offers several key features that make it a standout solution for high-density networking needs. Its 48 ports with 10GBASE-T support provide ample connectivity options for various devices, ensuring high-speed data transmission and reliable network performance. The inclusion of 4 QSFP+ ports for 10/40 Gigabit Ethernet uplinks allows for seamless integration with high-speed network backbones.

Another significant advantage is its robust feature set, which includes advanced Layer 2 switching capabilities, support for multiple VLANs, and extensive Quality of Service (QoS) features. This ensures efficient traffic management and prioritization, making it suitable for demanding applications such as video streaming, VoIP, and data center environments.

The Extreme 71K91L4-48 is widely used in various industrial and enterprise settings due to its high-density connectivity and robust performance. In enterprise networks, it serves as a critical component for connecting multiple devices, such as desktops, servers, and VoIP systems, ensuring seamless data flow and efficient network operations. Its PoE capability makes it ideal for deploying IP phones, wireless access points, and other PoE-enabled devices without the need for additional power supplies.

In data centers, the Extreme 71K91L4-48 is used to provide high-speed connectivity to servers and storage devices, ensuring low-latency and high-throughput data transfer. Its support for advanced protocols and features, such as Metro Ring Protocol (MRP) and Link Aggregation Control Protocol (LACP), makes it suitable for building resilient and scalable network infrastructures.

Extreme 71K91L4-24 – A variant with 24 ports of 10GBASE-T and 4 QSFP+ ports, suitable for smaller applications.

Extreme 71K11L4-48 – A variant with 48 ports of 1/10Gb SFP+ and 4 QSFP+ ports, offering a different port configuration for specific use cases.

Extreme 71K11L4-24 – A variant with 24 ports of 1/10Gb SFP+ and 4 QSFP+ ports, providing a more compact solution for high-speed networking.

When installing the Extreme 71K91L4-48, it is important to ensure that the switch is mounted in a location that meets the specified environmental and physical requirements. Proper grounding and power supply connections are crucial for ensuring reliable operation and preventing potential issues. The switch can be mounted in a 1U rack, making it suitable for data center and server room environments.

Regular maintenance of the Extreme 71K91L4-48 includes periodic checks of the connections, power supply, and cooling systems to ensure they are functioning correctly. It is also recommended to perform firmware updates and diagnostic tests to identify and address any potential issues before they lead to system failures. Following the manufacturer’s guidelines for maintenance and replacement intervals will help ensure the long-term reliability and performance of the switch.

The Extreme 71K91L4-48 comes with a one-year hardware warranty from Extreme Networks. For full warranty terms and conditions, please refer to the official Extreme Networks support page.