3Com 52x, 32x manual Troubleshooting, During the Test, Phase, During the Load

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4-2CHAPTER 4: TROUBLESHOOTING

Troubleshooting

When a problem occurs during the test phase, the Status LEDs light in

During the Test

a particular pattern. Table 4-1 shows the Status LED pattern, the

Phase

 

 

problem associated with that pattern, and the action to take.

Table 4-1System Self-test Errors

 

 

 

 

 

 

Status LEDs

 

 

 

 

1

2

3

4

Test LED

Power/Fault LED

Meaning and Action

 

 

 

 

 

 

 

Off

Off

On

On

On

Yellow

EEPROM checksum test failed.

 

 

 

 

 

 

Contact your network supplier.

 

 

 

 

 

 

 

Troubleshooting

When a problem occurs during the load phase, the Status LEDs light in

During the Load

particular patterns. Table 4-2 shows the Status LED patterns, the

Phase

 

 

problems associated with these patterns, and the actions to take.

Table 4-2System Software Load Errors

 

 

 

 

 

 

Status LEDs

 

 

 

 

1

2

3

4

Load LED

Power/Fault LED

Meaning and Action

 

 

 

 

 

 

 

Off

Off

On

On

On

Yellow

Software image file has been deleted or boot source and

 

 

 

 

 

 

image file names do not match.

 

 

 

 

 

 

Reload the system software. Refer to the software

 

 

 

 

 

 

guide.

 

 

 

 

 

 

 

On

Off

Off

Off

On

Yellow

Unable to transmit BOOTP request. Bridge/router is not

 

 

 

 

 

 

connected to token ring correctly.

 

 

 

 

 

 

Check cable connections.

 

 

 

 

 

 

 

On

Off

Off

On

On

Yellow

No response to BOOTP request. BOOTP server not present

 

 

 

 

 

 

or incorrectly configured.

 

 

 

 

 

 

Check TFTP server configuration and verify the MAC

 

 

 

 

 

 

address of the bridge/router. Press Reset to retry the

 

 

 

 

 

 

system software load. If the load is unsuccessful, call

 

 

 

 

 

 

your network supplier for assistance.

 

 

 

 

 

 

 

On

Off

On

Off

On

Yellow

No response to Address Resolution Protocol (ARP) request

 

 

 

 

 

 

from TFTP server. TFTP server not present or incorrectly

 

 

 

 

 

 

configured.

Check TFTP server configuration and verify the MAC address of the bridge/router. Press Reset to retry the system software load If the load is unsuccessful, call your network supplier for assistance.

(continued)

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Contents Models 32x Electromagnetic Compatibility Information Avis Canadien CE Notice Contents Connectors and Cables Removing the Cover Installing Memory Reinstalling the CoverIndex 3COM Corporation Limited Warranty Viii Icon Alerts you to About this GuideConventions Chapter about this Guide Equipment Installing the HardwareRequired 1Equipment Received and Equipment NeededFor more information on cables, refer to Chapter 1Rack-Mount Kit Contents Mounting4CHAPTER 1 Installing the Hardware Cabling Cabling the LAN Connector Models 323, 327, Cabling the Isdn Connector Model2Serial Connector Cabling Information Connector Connection to Mode Cable Name Sold by 3Com?Models 32x DTE mode Models 32x DCE-like modeModels 52x DTE mode Models 52x DCE-like modeSystem Redundant PowerAttaching a Terminal, or Connecting a PCCharacteristic Setting Modem12CHAPTER 1 Installing the Hardware Overview Model Features1SuperStack II NETBuilder Model Features Chassis PanelsPanels ModelLEDs Interrupt SwitchConnectors HardwarePC Cable 39-pin to 9-pin PC Cable Null Modem-TypeTerminal Cable 49-pin to 25-pin Terminal Cable Null Modem-TypeUTP Connector and Cable Modem Cable3STP Cable Types, MAUs, and Emissions Compliance STP Connector and Cable2UTP Cable Types, MAUs, and Emissions Compliance Shielded5Maximum Workstations on a Token Ring Network Cabling Standards4Auxiliary Pin Use Pinout STP Maximum CurrentTo V.35 DCE Cable 6V.35 Straight-Through CableTo V.35 Direct Connect Cable 7V.35 to V.35 Direct-Connect CableUniversal to V.35 Adapter Cable 8UNIVERSAL to V.35 Adapter CableUniversal to V.35 Direct Connect Cable 9UNIVERSAL to V.35 Direct Connect CableUniversal to RS-449/V.36 DCE Cable 10UNIVERSAL to V.36 Adapter CableUniversal to RS-449/V.36 Direct Connect Cable 11UNIVERSAL to RS-449/V.36 Direct-Connect CableUniversal to RS-232 DCE Cable 12UNIVERSAL to RS-232 DCE CableUniversal to RS-232 Direct Connect Cable Universal to RS-232 Direct-Connect CableRS-232 to RS-232 DCE Cable 14RS-232 Straight-Through CableRS-232 to RS-232 Direct Connect Cable 15RS-232 to RS-232 Direct-Connect CableUniversal to X.21 Adapter Cable 16UNIVERSAL to X.21 Adapter CablePin No Function Signal 6ISDN Cable PinoutsRelative Humidity Physical SpecificationsAltitude 22CHAPTER 2 Overview Upgrading Memory Removing the CoverDip switches should all be in the down position Reinstalling Cover 4CHAPTER 3 Upgrading Memory Troubleshooting System /FaultDuring the Test TroubleshootingPhase During the Load3LED Meanings Associated Model No ConnectorLED Meanings Call your network supplier for assistanceConnection Symptom Cause and ActionToken Ring This is Only station Canonical least significant bit first 0001 0101American Isdn BRI Services Provisioning Your Isdn LineIsdn Information Sheet 3Com SuperStack II Bridge/Router AT&T 5ESS NI1North American Switch Provisioning Tables AT&T 5ESSTable A-1Ordering Isdn Service for an AT&T 5ESS Switch Required InformationRequired Information Specification DN must be set as follows Parameter SettingTable A-3Ordering Isdn Service for a DMS 100 Switch Table A-4Ordering Isdn Service for a Siemens Ewsd Switch SPIDs8APPENDIX a Provisioning Your Isdn Line Isdn BRI Services Ordering German10APPENDIX a Provisioning Your Isdn Line Online Technical ServiceTechnical Support 3Com Bulletin Board408 654 Access by Analog ModemAccess by Digital Modem Country Data Rate Telephone NumberTelephone Country Number3Com Benelux B.V Country Telephone Number Fax Number Page Index NumericsSTP UTP Index 3Com Corporation Limited Warranty Limitation of Liability