Name: Extreme Networks 7720
Brand: Extreme Networks
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Extreme 7720 Hardware Installation Guide

9037387-00 Rev. AC

December 2023

Table of Contents3
Preface7
Audience7
Text Conventions7
Documentation and Training9
Help and Support9
Subscribe to Product Announcements10
Send Feedback10
Extreme 7720 Series Overview12
Management12
Cooling12
Power Supplies13
Stacking13
Secure Boot13
Operating Temperatures14
Feature Licensing14
Extreme 7720 Series Switch Features14
Port Partitioning16
Secure Boot17
Switch Engine17
Secure Boot Troubleshooting17
Power Supplies for Use with Your Switch18
Precautions Specific to Power Supply Modules18
800 W AC Power Supply19
800 W DC Power Supply19
Build Stacks20
Introduction to Stacking20
Build Basic Stacks21
Summitstack Topologies22
Summitstack Terms25
Plan to Create Your Stack29
Enable and Disable the Stacking-Support Option29
Recommendations for Placing Switches for Stacked Operation29
Recommendations for Configuring Stacks30
Combine Switches from Different Series31
Select Stacking Cables31
Use the Extreme Stacking Tool31
Set up the Physical Stack33
Connect the Switches to Form the Stack Ring33
Connect Your Stack to the Management Network36
Site Preparation37
Plan Your Site37
Operating Environment Requirements38
Meet Building and Electrical Codes38
Set up the Wiring Closet39
Control the Temperature40
Control the Humidity Level41
Protect Your System from ESD (Electrostatic Discharge)41
Rack Specifications and Recommendations41
Mechanical Recommendations for the Rack42
Ground the Rack42
Provide Adequate Space for the Rack42
Secure the Rack43
Evaluate and Meet Cable Requirements43
Label Cables and Keep Accurate Records44
Install Cable44
Use RJ45 Connector Jackets48
Prevent Radio Frequency Interference (RFI)48
Meet Power Requirements49
Requirements for Poe Devices49
Power Supply Requirements49
Power Cord Requirements50
UPS (Uninterruptible Power Supply) Requirements50
Follow Applicable Industry Standards51
Install the Switch52
Safety Considerations for Installation53
What You will Need for the Installation53
Attach the Switch to a Rack or Cabinet54
Four-Post Rack Mount54
Two-Post Rack Mount58
Install Optional Components60
Pluggable Transceiver Modules60
Optical Cables60
Breakout Cables60
Install Internal Power Supplies60
Turn on the Switch61
Connect Network Interface Cables61
Activate and Verify the Switch62
Connect to a Management Console62
Log in for the First Time on Switch Engine62
Configure the Switch's IP Address for the Management VLAN64
Change the Switch os Via the Bootloader Menu64
Change the Switch os Via the Startup Menu65
Log in for the First Time on Fabric Engine65
Remove and Replace Components67
Replace Internal Power Supplies67
Replace an 800 W Internal AC Power Supply67
Replace an 800 W Internal DC Power Supply70
Replace Fan Modules72
Remove the Device from the Rack73
Remove the Switch from a Four-Post Rack73
Remove the Switch from a Two-Post Rack75
Monitor the Switch77
System Status Leds77
Management Port Leds78
QSFP28 Port Leds78
800 W AC Power Supply Leds79
800 W DC Power Supply Leds79
Technical Specifications81
7720 Series Technical Specifications81
External Interfaces81
Weights and Dimensions of Accessories82
Acoustic Noise and Fan Speed83
Acoustic Noise83
Fan Tray and Speed Variation83
CPU, Memory Specifications84
Mean Time between Failures84
Power Specifications84
Power Supply Specifications84
Power Consumption85
Power and Heat Dissipation85
Environmental85
Environmental Specifications85
Environmental Compliance85
Environmental Operating Conditions86
Packaging and Storage Specifications86
Standards86
North American ITE86
European ITE86
International ITE86
EMI/EMC Standards87
North American EMC for ITE87
European EMC Standards87
International EMC Certifications87
Country Specific87
IEEE 802.3 Media Access Standards88
Power Cord Requirements for AC-Powered Switches and AC Power Supplies88
Console Connector Pinouts88
Safety Information91
Considerations before Installing91
General Safety Precautions92
Maintenance Safety93
Fiber Optic Ports and Optical Safety93
Cable Routing for LAN Systems94
Install Power Supply Units and Connect Power94
Select Power Supply Cords95
Battery Notice96
Battery Warning - Taiwan96
Regulatory Information97
CE Statement97
EMC Warnings98
China CQC Warning98
China and Taiwan: Restriction of Hazardous Substances (ROHS)98
BSMI Statement (Taiwan)98
Canadian Requirements98
China CCC Statement99
Australia (RCM)99
Federal Communications Commission (FCC) Notice99
Germany Statement100
KCC Statement (Republic of Korea)100
Japan (VCCI Class A)100
Japan Power Cord101
Index102

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Brand	Extreme Networks
Model	7720
Category	Switch
Language	English