HP J3245A User Manual Page 159
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Troubleshooting
Installation Problems
Troubleshooting
Installation Problems
By carefully following the installation procedures described in chapter 1,
“Installation”, you can avoid most problems caused by improper installation
of the switch or one of its components.
Incorrect Hardware Installation
Incorrectly installing the switch or power cord can result in one or both of
these components malfunctioning or not functioning at all. If one or both of
these components appear not to be functioning, recheck the installation
procedure and, if necessary, reinstall the component correctly.
If the switch will not power on or intermittently resets itself, the switch’s
processor may be faulty or the hardware/software setup may be wrong.
Console RS-232 Problems
If the switch powers on but the console interface will not start up, follow these
steps:
■ Check the external Console RS-232 connection. If you are not using a
modem connection, ensure that the cable is a null modem cable.
■ Check the console device settings against the settings listed in appendix
C, Sample Console Configurations.
■ Try a different baud rate setting in your console device. The switch’s
default setting, “Speed Sense”, automatically matches the Console RS-232
baud rate to the rate used by your PC, terminal, or modem. (However, if
the Baud Rate parameter in the switch’s Serial Link screen has been
configured to a specific value, the Speed Sense operation is disabled.) The
switch operates at 300, 600, 1200, 2400, 4800, 9600, 19200, or 38400 bps.
■ If you are using a terminal emulation program, try exiting the program and
then restarting it.
If the diagnostic information does not appear, or is unintelligible, try changing
the baud rate on your terminal or PC terminal emulator. Try 9600 first. If the
problem continues, try each of the other rates listed above.
SEDONA.BK : sed_9.fm5 Page 5 Thursday, February 27, 1997 10:11 AM
- HP AdvanceStack Switch 800T 1
- HP Customer Support Services 3
- Perforate 4
- Documentation 7
- Contents 9
- Console 10
- 8: File Transfers 11
- 9: Troubleshooting 11
- 7: Advanced Concepts 11
- A: Cables and Connectors 12
- B: Specifications 12
- D: Switch Reference 12
- E: BOOTP Operation 13
- F: MAC Address Management 13
- Installation 15
- Installation Summary 16
- Verify the Switch Hardware 20
- 3. Mount the Switch 22
- Rack or Cabinet Mounting 23
- Mounting the Switch on a Wall 28
- Table Mounting 29
- 4. Connect a Power Supply 30
- Power Supply (RPS): 31
- Cable Management 34
- Where To Go from Here 39
- Using the Console Interface 41
- Main Menu Features 44
- Using Password Security 47
- Rebooting the Switch 50
- Resetting the Switch 52
- Configuring the Switch 53
- Configurable Features 55
- System Features 57
- Port Features 58
- IPX Service Features 59
- Virtual LAN (VLAN) Features 63
- Traffic Control 64
- SNMP Communities Features 65
- Trap Receivers Features 67
- Serial Link Features 68
- Console Features 69
- Spanning Tree Features 73
- Switching 75
- Status and Counters Menu 78
- Switch Information 79
- Port Status 80
- Port Counters 81
- Address Table 83
- Port Address Table 84
- Monitoring and Analyzing 85
- Switch Operation from the 85
- IP Multicast (IGMP) Status 88
- Event Log 91
- Log Status Line 92
- SNMP Management 95
- SNMP Configuration Process 97
- Using the Advanced Commands 100
- Overview 100
- Commands 102
- Using the Advanced 103
- Advanced Concepts 107
- Spanning Tree Protocol (STP) 108
- Port Trunking 111
- Filters and Security 114
- Virtual LANs (VLANs) 120
- Overview of Using VLANs 122
- How To Configure a VLAN 123
- VLAN Restrictions 127
- Environments 128
- IP Multicast (IGMP) 129
- How To Configure IGMP 132
- How ABC Operates 136
- How To Configure ABC 138
- File Transfers 145
- Switch-to-Switch Download 149
- Troubleshooting 155
- Diagnosing with the LEDs 156
- LED Error Indications 157
- Installation Problems 159
- Cabling Problems 160
- Unusual Network Activity 161
- Diagnostic Tests 161
- Customer Support Services 162
- Cables and Connectors 163
- Recommended Cables 164
- MDI-X Hub Port 166
- RS-232-C “Null Modem” Cable 169
- RS-232 Modem Cable 170
- Specifications 171
- Connectors 172
- Electromagnetic 172
- Sample Console Configurations 173
- Procomm Plus V2.01 174
- Other Terminal Emulators 175
- Switch Reference 177
- Port Status LEDs 179
- Console RS-232 Port 182
- Back of the Switch 183
- BOOTP Operation 185
- Bootp Database Record Entries 186
- Configuring Bootp 187
- MAC Address Management 189
- Switch (Default) MAC Address 190
- VLAN MAC Addresses 191
- Operation) 192
- Safety Information 193
- Symboles de sécurité 194
- Hinweise zur Sicherheit 195
- Regulatory Statements 199
- European Community 200
- DOC Statement (Canada) 200
- Declaration of Conformity 201
- Safety-10 202
- Safety and Regulatory 202
- Statements 202
- Numerics 203
- Index - 2 204
- Index - 3 205
- Index - 4 206
- Index - 5 207
- Index - 6 208
- Index - 7 209
- Index - 8 210
- Index - 9 211
- *J3245-90001* 213
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