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Troubleshooting Checklist
Troubleshooting 4-5
4.2 TROUBLESHOOTING CHECKLIST
If the SmartSwitch is not working properly, refer to Table 4-2 for a checklist of possible problems,
causes, and recommended actions to resolve the problem.
Table 4-2 Fault Identification
Symptom Possible Causes
All LEDs off. 1. Installation error - Remove the SmartSwitch and perform
installation in accordance with installation instructions. Check
connectors for dust or dirt and clean as necessary.
2. Power system fault - refer to Table 4-3.
Module stays in BOOT
state.
1. Device does not have an operable firmware image, and is
sending out BootP requests in an effort to locate a BootP server
on the network. Press the RESET button on the front panel to
attempt to use the firmware image in FLASH memory.
2. If the problem continues after pressing the RESET button, refer
to Section B.1 for instructions on forcing a BootP image
download.
3. Contact Cabletron Systems if the problem continues.
Cannot access Local
Management.
1. Firmware image fault - refer to Table 4-4.
2. Management system fault - refer to Table 4-5.
Cannot contact device
through in-band
management.
1. Management system fault - refer to Table 4-5.
2. No link to device - verify all network connections between the
network management station and the SmartSwitch are valid and
operating.
User parameters
(IP address,
community names,
etc.) lost on reset or
power-up.
Device setup fault - refer to Table 4-6.
Device is not
forwarding traffic from
any port.
Device setup fault - refer to Table 4-6.