The ExtremeSwitching 5520 Series is a family of high-performance aggregation switches. The 5520 Series universal hardware provides end-to-end secure network segmentation, in addition to advanced policy capabilities, and offers a user-selectable choice of Extreme‘s flagship switch operating systems.
The 5520 Series includes 24- and 48-port 1 Gigabit models, 1/2.5/5 Gigabit multi-rate models, as well as a 24-port 10 Gigabit model. The family also offers 30/60/90W PoE, and supports 10G and 25G modular uplinks for flexible linkage to other switches or devices over a range of media.
The 10/100/1000Base-T ports on the 5520-24W/12MW-36W/48T/48W models can operate in half-duplex mode when operating at 10Mbps or 100Mbps. Half-duplex is not supported on these ports when operating at 1Gbps.
Both front-to-back and back-to-front airflow options for fan modules and power supply units are available in 5520 Series switches. All fan modules must have the same airflow direction and must match the airflow direction of the power supplies.
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.
Note
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 stepsThere 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.
Switch cooling is provided by replaceable fan modules. Most 5520 Series models have fan modules that provide front-to back airflow. Models 5520-24T-BASE, 5520-24X-BASE, 5520-48T-BASE, and 5520-48SE-BASE require fan modules that provide back-to-front airflow. Models 5520-24T-ACDC, 5520-24X-ACDC, 5520-48T-ACDC, and 5520-48SE-ACDC can use fan modules with front-to-back airflow and can also use fan modules with back-to-front airflow. Power supplies have integrated cooling fans that operate independently of switch fans. All installed fan modules must blow air in the same direction and must match the airflow direction of the installed power supplies.
Fans are ordered separately for models 5520-24T-BASE, 5520-24T-ACDC, 5520-24X-BASE, 5520-24X-ACDC, 5520-48T-BASE, 5520-48T-ACDC, 5520-48SE-BASE, and 5520-48SE-ACDC. Fans are included with other models.
Two spare fan modules, (17115) with front-to-back airflow, and (X870-FANBF, 17116) with back-to-front airflow, are available for 5520 Series switches.
Power supply bays in the rear of the switch accommodate power supplies. Most 5520 Series models require AC power supplies. Models 5520-24T-ACDC, 5520-24X-ACDC, 5520-48T-ACDC, and 5520-48SE-ACDC can use AC or DC 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 or back-to-front airflow for cooling. All installed power supplies must blow air in the same direction and must match the airflow direction of the installed fan modules.
Power supplies are ordered separately. For more information about the power supplies used in the 5520 Series switches, see Power Supplies for Use with Your Switch.
The following Versatile Interface Modules (VIMs) are available for 5520 Series switches:
5520-VIM-4X versatile interface module that provides four 10-GbE (SFP+) ports.
5520-VIM-4XE versatile interface module that provides four 10-GbE (SFP+) ports, LRM/MACsec capable.
5520-VIM-4YE versatile interface module that provides four 25-GbE (SFP28) MACsec capable ports.
Warning
The switch must be powered off before you install any VIM options. The interface module options are not hot swappable.
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.
High-speed 200Gb stacking is available on 5520 Series switches starting with Switch Engine 31.6 while using SummitStack V-200. The two QSFP ports on the 5520 Series each provide 50Gb in both directions, resulting in 4x50Gb, or 200Gb total. 5520 Series switches can stack with themselves and with 5720 Series switches using SummitStack-V200 and QSFP28 cables.
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 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.
All 5520 switch models using front-to-back airflow support an operating range from 0°C (32°F) to 50°C (122°F). All 5520 switch models using back-to-front airflow support an operating range from 0°C (32°F) to 45°C (113°F). Temperature restrictions apply for some models at high altitudes.
The 5520 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.