alt text here
alt text here

Universal Switches

Extreme 7520

Universal Aggregation/Core Switch Platform

Product Highlights

  • High-performance, fixed-form switches for leaf, spine, aggregation, or core applications
  • Universal dual-persona hardware allows user choice of switch operating systems
  • ExtremeCloud IQ and ExtremeCloud IQ - Site Engine for powerful, secure and easy to use cloud-based network management.
  • Fabric Connect for automated network operations, simplified network provisioning and enhanced security

Key Hardware Features

  • Three models – two models with no MACsec and one model with MACsec in a fixed 1U form factor
  • AC and DC power options
  • Back-to-front and front-to-back airflow options
  • Up to 8-unit stacking
  • Integrated Application Hosting enables 3rd-party applications without impacting switch performance
  • Non-blocking, wire-speed design

The Extreme 7520 are purpose-built 48-port 10Gb and 48-port 25Gb switches designed for high-performance aggregation and core applications. As a universal hardware platform, the 7520 provides end-to-end secure network segmentation, in addition to advanced policy capabilities, with a user-selectable choice of Extreme’s flagship switch operating systems. This makes the 7520 a uniquely flexible platform that can be deployed in a variety of aggregation and core environments.

The Extreme 7520 network hardware platform enables organizations to design networks that accommodate a variety of applications and east-west traffic patterns. With its high-density scale-out architecture, leading power efficiency, and airflow options, the 7520 platform delivers a cost-effective solution that optimizes power, cooling, and equipment room space, wherever your network operating center might be.

Three models of the 7520 are available.

7520-48XT-6C48 x 1Gb/10Gb 10GBaseT copper ports (no MACsec)6 x 40Gb/100Gb QSFP28 fiber ports (no MACsec)

7520-48Y-8C48 x 1Gb/10Gb/25Gb SFP28 fiber ports (no MACsec)8 x 40Gb/100Gb QSFP28 fiber ports (no MACsec)

7520-48YE-8CE48 x 10/25Gb SFP28 fiber ports with MACsec support8 x 100Gb QSFP28 fiber ports with MACsec supportNote: This model does not support stacking


The 7520 supports a variety of Ethernet Fabric services, including Extreme’s Fabric Connect when running Fabric Engine (VOSS) and Extreme’s IP Fabric when running Switch Engine (EXOS). It also supports Fabric Attach for automated connection to either Layer 2 or Layer 3 fabric services. Extreme’s Fabric Connect and IP Fabric on the 7520 enable the creation of virtualized networks that automate network operations, simplify network provisioning, and enhance security, all while reducing the strain on network and IT personnel.

Two of the 7520’s QSFP28 uplink ports can be used for high-speed 400Gb stacking when running Switch Engine (EXOS). Up to eight systems can be stacked using qualified direct attach cables and/or optical transceivers. (Note: Stacking is not supported on the 7520-48YE -8CE model or when running Fabric Engine (VOSS)).

The 7520 can be managed by ExtremeCloud IQ and ExtremeCloud IQ-Site Engine for comprehensive unified management with a consolidated view of users, devices and applications across wired and wireless networks.

Zero-touch provisioning from ExtremeCloud IQ lets one quickly bring new 7520 switches online as well as enable the selection of the operating system (OS) persona. Alternatively, 7520 on-box management can be done manually via a web-based GUI or generic CLI.

The 7520 Series comes with a dual-persona capability allowing user choice of the switch operating system (OS). Either the Switch Engine (EXOS) or Fabric Engine (VOSS) persona can be enabled on 7520 hardware models. The desired persona can be selected at start-up or changed at a later stage. Once selected, the 7520 assumes the features/capabilities of the selected OS.

7520 persona activation can be done manually at boot-up, including via the system CLI. Or, it can be automated by pre-provisioning the 7520 persona in ExtremeCloud IQ. When first booted, the 7520 automatically connects to ExtremeCloud IQ to find its persona. The pre-provisioned OS persona is then remotely enabled on the 7520 system – eliminating the need for manual selection.