Extreme 8520 Technical Specifications

External Interfaces contains external interfaces and weights and dimensions information for Extreme 8520 switches.

Table 1. External Interfaces
8520-48Y8520-48XT

Ports
  • 48 x 1/10/25GbE SFP28 ports
  • 8 x 40/100GbE QSFP28 ports
  • 1 x Serial console port RJ-45
  • 1 x 10/100/1000BASE-T out -of-band management port
  • USB Type A storage port
  • 48 x 1/10GbE 10GBaseT ports
  • 6 x 40/100GbE QSFP28 ports
  • 1 x Serial console port RJ-45
  • 1 x 10/100/1000BASE-T out -of-band management port
  • USB Type A storage port

Power Supplies

Modular 750W AC power supply (up to two PSUs)

  • Modular 750W DC power supply (up to two PSUs)
  • Front to Back and Back to Front airflow options

Modular 750W AC power supply (up to two PSUs)

  • Modular 750W DC power supply (up to two PSUs)
  • Front to Back and Back to Front airflow options

Fan Modules
  • 6 fan modules
  • Front-Back and Back-Front airflow options
  • 6 fan modules
  • Front-Back and Back-Front airflow options
Dimensions17.3 in W / 21.24 in D / 1.7 in H (44.0cm / 53.95cm / 4.3cm)17.3in W / 20.9 in D / 1.7 in H (44.0cm / 53.2cm / 4.3cm)
Weight
  • 7.58 kg (16.71 lb) with no PSUs
  • 10.0 kg (22.13 lb) with 2 AC PSUs
  • 10.11 kg (22.29 lb) with 2 DC PSUs
  • 7.41 kg (16.34 lb) with no PSUs
  • 9.47 kg (20.88 lb) with 2 AC PSUs
  • 9.54 kg (21.0 lb) with 2 DC PSUs

Performance
  • Line rate 4Tbps Switching Capacity (2Tbps ingress, 2Tbps egress)
  • Typical Latency: 800 ns
  • Forwarding rate: 1000 Mpps
  • Line rate 2.16 Tbps Switching Capacity (1.08Tbps ingress, 1.08Tbps egress)
  • Typical Latency: 2,400 ns
  • Forwarding rate: 1000 Mpps

CPU Memory
  • 8-core Processor
  • 16GB DDR4 memory
  • 128GB SSD memory
  • 8-core Processor
  • 16GB DDR4 memory
  • 128GB SSD memory
Packet Buffers32MB32MB

Operating Conditions

AC/DC, one fan failed, front-to-back:

0°C (32°F) to 50°C (122°F) at sea level;

0°C (32°F) to 40°C (104°F) up to 3000 m (10,000 ft)

AC/DC, one fan failed, back-to-front:

0°C (32°F) to 45°C (113°F) at sea level;

0°C (32°F) to 40°C (104°F) up to 3000 m (10,000 ft)

Table 2. Weights and Dimensions of Accessories
AccessoryWeightPhysical Dimensions

Fan unit, front-to-back or back-to-front

0.14 kg (0.31 lb) Height: 4.0 cm (1.57 in)

Width: 4.0 cm (1.57 in)

Length: 13.4 cm (5.28 in)

Four-post rack mount kit (included with switch)

2.63 kg (5.8 lb) Height: 2.1 cm (0.83 in)

Width: 4.4 cm (1.73 in)

Length: 63.0 cm - 90.0 cm (24.80 in - 35.43 in)

Two-post rack mount kit (separately orderable)

0.45 kg (0.99 lb) Height: 5.0 cm (1.97 in)

Width: 7.0 cm (2.76 in)

Length: 72.0 cm (28.4 in)

Table 3. Console Cables
Description
XN-RJ45-DB9-CONSOLE-CBLRJ45 to DB9 Console cable (6ft)
XN-RJ45-USBA-CONSOLE-CBLRJ45 to USBA Console cable (6ft)*
XN-RJ45-USBC-CONSOLE-CBLRJ45 to USBC Console cable (6ft)*

* The cable might require an FTDI software driver on some operating systems.

9037126-00 Rev AE