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8. (Optional) Install a Second Power Supply ...................2-17

9. (Optional) Connect a Management console .................. 2-18

10. Connect the Network Cables ..............................2-21

Stacking Information and Topologies .............................2-23

Sample Network Topologies ..................................... 2-29

3 Getting Started With Switch Configuration

Recommended Minimal Configuration .............................3-1

Minimal Configuration Through the Console Port Connection ......... 3-2

Where to Go From Here: Networked Connections ...................3-4

Using the IP Address for Remote Switch Management ................ 3-6

Starting a Telnet Session .....................................3-6

Starting a Web Browser Session ...............................3-6

4 Replacing Components

Replacing the Fan Tray ..........................................4-2

Replacing the Power Supply ......................................4-3

Replacing the Stacking Module ...................................4-4

5 Troubleshooting

Basic Troubleshooting Tips ......................................5-2

Diagnosing with the LEDs ........................................5-4

Proactive Networking .......................................... 5-11

Hardware Diagnostic Tests ......................................5-12

Testing the Switch by Resetting It ............................ 5-12

Testing Twisted-Pair Cabling .................................5-13

Testing Switch-to-Device Network Communications ............5-13

Testing End-to-End Network Communications .................5-13

Restoring the Factory Default Configuration ....................... 5-14

Downloading New Switch Software ..............................5-15

HP Customer Support Services ..................................5-15

Before Calling Support ...................................... 5-15

HP J9574A Installation And Getting Started Guide

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