ExtremeSwitching 5720 Series Overview

The ExtremeSwitching 5720 Series is a family of high-performance, feature-rich edge and aggregation switches. As a universal hardware platform, the 5720 Series offers a user-selectable choice of Extreme‘s flagship switch operating systems, Switch Engine and Fabric Engine. The 5720 Series includes 24- and 48-port 1/2.5/5 Multi-gig models, as well as 24- and 48-port 1/2.5/5/10 Multi-gig models. All models offer 90W PoE support, including Perpetual PoE and Fast PoE. The 5720 Series includes 10/25Gb and/or 100Gb modular uplink options for flexible linkage to other switches or devices.


An RJ45 serial console port on the switch enables you to connect a terminal and perform local management. An Ethernet management port can be used to connect the system to an out-of-band management network for administration. Alternatively, you can use an Ethernet cable to connect this port directly to a laptop to view and locally manage the switch configuration. The Ethernet management port supports 10/100/1000 Mbps speeds. The RJ45 serial console port is located on the rear panel of the switch.

There is one Micro-B USB console port located on the front panel. If the Micro-B USB console port is connected, it is selected over the RJ45 serial console port. The Micro-B USB console port disconnects when the switch is rebooted. You can re-connect the port if needed. When the Micro-B USB console is active, any messages from the switch to the client terminal are echoed to both the USB console and the RJ45 serial console port; however, no user input is accepted from the RJ45 serial console port.


Using a Micro-USB Type B to USB Type A cable, connect the Micro-USB Type B end to the switch, and the USB Type A end to a laptop or PC and complete the driver installation steps

There are also two USB 2.0 Type A ports: one on the front panel labeled USB 1 and one on the rear labeled USB 2. They can host removable devices like flash drives.


Each base model is available with front-to-back cooling.

Switch cooling is provided by replaceable fan modules. The available fan module uses airflow from front to back. Two modular power supply slots accommodate AC power supplies. Power supplies have integrated cooling fans that operate independently of the switch fan.

A spare fan module (XN-FAN-005-F) with front-to-back airflow is available for 5720 Series switches.

Power Supplies

Two power supply bays accommodate modular AC power supplies. Power supplies have integrated cooling fans that operate independently of the switch fans. Like the fan modules, the power supplies are available in models with front-to-back cooling airflow. For more information about the power supplies used in the 5720 Series switches, see Power Supplies for Use with Your Switch.

Power supplies are ordered separately.

Versatile Interface Module Options

The following Versatile Interface Modules (VIM) are available for 5720 Series switches:



The switch must be powered off before you install any VIM options. The interface module options are not hot swappable.

See Expansion Modules for more information regarding VIM modules.

Stacking Ports

Each switch comes equipped with two stacking ports, also referred to as Universal Ethernet ports. The stacking ports are labeled U1 and U2 and are located on the front of the switch. When running Switch Engine, these ports can be used in either stacking mode or Ethernet mode. When in stacking mode, up to eight systems can be stacked using qualified direct attach cables or optical transceivers. The U1 and U2 ports operate as stacking ports by default. Use the disable stacking-support command to set the U1 and U2 ports in Ethernet mode. When used as Ethernet ports, the U1 and U2 ports can support data rates of 100Gb, 2 x 50Gb (Switch Engine only), 1 x 40Gb, 4 x 25Gb, or 4 x 10Gb using QSFP+ optics.

When running Fabric Engine, the stacking (or Universal Ethernet) ports are reserved for use by advanced features on the switch by default. For more information, see the advanced-feature-bandwidth-reservation Boot Flag documentation in the Fabric Engine User Guide for your version of the Fabric Engine operating system.

Stacking cables are ordered separately.

For information about optical modules, see the Extreme Optics website.

For information about stacking, see Build Stacks.

Secure Boot

Secure boot establishes a chain-of-trust relationship in the boot process. The chain-of-trust is established by cryptographic checks at each stage of the boot process to validate the integrity and authenticity of the next stage before it can execute. The current implementation validates boot images. It cannot be disabled after it has been programmed on the device. There is no command-line interface or commands to enable or disable secure boot. The status of the boot image verification can be monitored in the operating system.

For more information, see Secure Boot.

Operating Temperatures

All 5720 switch models support an operating range from 0°C to 50°C. Temperature restrictions apply for some models at high altitudes.

Feature Licensing

The 5720 Series switches support Unified Licensing, so that you can use them with multiple operating systems. There are two methods of acquiring feature licenses: manual or through ExtremeCloud IQ™ (XIQ).

For Switch Engine licensing, see the Feature License Requirements for your version of the Switch Engine software.

For Fabric Engine licensing, see the Licensing chapter in the Fabric Engine User Guide for your version of the Fabric Engine operating system.

For XIQ licensing, see ExtremeCloud IQ.