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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 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Replacing a 10G Expansion Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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

Checking the Switch LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Checking Console Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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

Questions and Answers:

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HP 2920 Specifications

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