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HP J9783A User Manual

HP J9783A
99 pages
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iv
Contents
6. Installing or Removing SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Installing the SFPs: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Removing the SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Connecting Cables to SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
7. (Optional) Connect a Console to the Switch . . . . . . . . . . . . . . . . . . 2-18
Terminal Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Direct Console Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Sample Network Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
As a Desktop Switch Implementing PoE . . . . . . . . . . . . . . . . . . . . . . . 2-22
As a Segment Switch Implementing PoE . . . . . . . . . . . . . . . . . . . . . . . 2-23
Stacking the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
3 Configuring the Switch
Recommended Minimal Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Using the Console Setup Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Where to Go From Here . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Using the IP Address for Remote Switch Management . . . . . . . . . . . . . . . . 3-5
Starting a Telnet Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Starting a Web Browser Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
4 Troubleshooting
Basic Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Diagnosing with the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
LED patterns for General Switch Troubleshooting . . . . . . . . . . . . . . . 4-4
LED Patterns for PoE Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Proactive Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Hardware Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Testing the Switch by Resetting It . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Checking the Switch LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Checking Console Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Testing Twisted-Pair Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Testing Switch-to-Device Network Communications . . . . . . . . . . . . 4-11
Testing End-to-End Network Communications . . . . . . . . . . . . . . . . . 4-11
Restoring the Factory Default Configuration . . . . . . . . . . . . . . . . . . . . . . . 4-12
Downloading New Switch Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Table of Contents

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HP J9783A Specifications

General IconGeneral
BrandHP
ModelJ9783A
CategorySwitch
LanguageEnglish

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