ExtremeSwitching™ 5520 Series Universal Edge/Aggregation Switches

1. Product Overview

The ExtremeSwitching 5520 Series is a high-performance, feature-rich family of fixed-form switches designed for enterprise edge and aggregation deployments. These switches provide a universal hardware platform that supports end-to-end network segmentation, advanced policy enforcement, and a choice of operating systems (ExtremeXOS or VOSS). With a range of 24 and 48-port models offering Gigabit, Multi-Gigabit, and 10 Gigabit Ethernet connectivity, the 5520 Series is ideal for modern digital enterprises requiring reliability, security, and flexibility.

2. Key Characteristics

• High-performance fixed-form switches for edge and aggregation
• Dual-persona OS support (ExtremeXOS or VOSS)
• Up to 90W PoE per port (IEEE 802.3bt)
• 10Gb and 25Gb modular uplink options via VIM slots
• Up to 8-unit stacking with 160Gb bandwidth
• Hot-swappable, redundant power supplies and fans
• MACsec encryption on access and uplink ports
• Fabric-ready for automated and secure network segmentation
• Cloud or on-prem management via ExtremeCloud IQ

3. Core Technologies

The 5520 Series leverages advanced technologies including IEEE 802.3bt PoE, MACsec (256-bit encryption), Fabric Connect (VOSS) or IP Fabric (ExtremeXOS), and high-density stacking. It supports Energy Efficient Ethernet (IEEE 802.3az) and offers versatile uplink options through VIM modules (SFP+, SFP28).

4. Working Principle

The switch operates as a Layer 2/Layer 3 device, providing wire-speed forwarding and policy enforcement. It can be configured as a standalone unit or as part of a stacked topology. The dual-boot architecture allows administrators to select between ExtremeXOS and VOSS operating systems, each enabling different feature sets such as Fabric services, advanced routing, and automated provisioning.

5. Applications

Ideal for enterprise campus networks, wiring closets, aggregation layers, and digital edge deployments. Supports wired backhaul for wireless APs, IP cameras, digital signage, IoT devices, and PoE-enabled endpoints. Suitable for education, healthcare, retail, and government sectors.

6. Specifications & Selection Guide

7. Advantages & Selling Points

• Universal hardware with dual-OS flexibility reduces operational complexity
• High-power PoE support drives next-gen IoT and wireless deployments
• Non-blocking architecture ensures wire-speed performance
• Cloud-native management with ExtremeCloud IQ simplifies oversight
• Robust security with MACsec and Fabric services

8. Service & Support

All Extreme 5520 switches come with a 1-year ExtremeCloud IQ Pilot subscription. Extended support options include 24/7 technical assistance, advanced replacement, and on-site services. Warranty coverage follows Extreme’s Limited Lifetime Hardware policy.

9. Frequently Asked Questions

Q: Can I change the OS after deployment?
A: Yes, the OS persona can be selected at boot or via cloud provisioning.

Q: What is the maximum PoE budget?
A: Up to 2160W with dual 2000W PSUs at 200–240VAC.

Q: Is stacking supported in both OS modes?
A: Stacking is only supported in ExtremeXOS mode.

Q: Are optics included?
A: No, transceivers and optics must be ordered separately.

10. Precautions

• Use identical PSU types for optimal PoE redundancy
• Ensure adequate airflow and operating temperature (0°C to 50°C)
• Verify VIM and optic compatibility before deployment
• Follow local EMC and safety regulations during installation

11. Company Introduction

With over a decade of industry experience, we operate a large-scale facility supported by a strong technical team. We have built a vast customer base and offer competitive pricing on high-quality networking products. Our portfolio includes leading brands such as Mellanox, Ruckus, Aruba, and Extreme. We supply original new switches, network adapters, wireless access points, controllers, and cables from extensive inventory. Our professional sales and technical support teams are available 24/7 to ensure customer satisfaction and reliable service.