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Table of Contents

Preface.............................................................................................................................................. 7

Audience.................................................................................................................................................................................................... 7

Text Conventions..................................................................................................................................................................................7

Documentation and Training....................................................................................................................................................9

Help and Support................................................................................................................................................................................9

Subscribe to Product Announcements.................................................................................................................10

Send Feedback................................................................................................................................................................................... 10

Extreme 7720 Series Overview............................................................................................... 12

Management........................................................................................................................................................................................ 12

Cooling.......................................................................................................................................................................................................12

Power Supplies....................................................................................................................................................................................13

Stacking ................................................................................................................................................................................................... 13

Secure Boot............................................................................................................................................................................................13

Operating Temperatures.............................................................................................................................................................14

Feature Licensing..............................................................................................................................................................................14

Extreme 7720 Series Switch Features...............................................................................................................................14

Port Partitioning.......................................................................................................................... 16

Secure Boot....................................................................................................................................17

Switch Engine.......................................................................................................................................................................................17

Secure Boot Troubleshooting .................................................................................................................................................17

Power Supplies for Use with Your Switch...........................................................................18

Precautions Specic to Power Supply Modules........................................................................................................18

800 W AC Power Supply..............................................................................................................................................................19

800 W DC Power Supply.............................................................................................................................................................19

Build Stacks.................................................................................................................................. 20

Introduction to Stacking............................................................................................................................................................ 20

Build Basic Stacks....................................................................................................................................................................21

SummitStack Topologies................................................................................................................................................. 22

SummitStack Terms.............................................................................................................................................................25

Plan to Create Your Stack...........................................................................................................................................................29

Enable and Disable the Stacking-Support Option......................................................................................29

Recommendations for Placing Switches for Stacked Operation.....................................................29

Recommendations for Conguring Stacks.......................................................................................................30

Combine Switches from Different Series..............................................................................................................31

Select Stacking Cables........................................................................................................................................................ 31

Use the Extreme Stacking Tool.....................................................................................................................................31

Set up the Physical Stack...........................................................................................................................................................33

Connect the Switches to Form the Stack Ring...............................................................................................33

Connect Your Stack to the Management Network.....................................................................................36

Extreme 7720 Hardware Installation Guide iii