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Chapter 4: Troubleshooting
4.3
TROUBLESHOOTING CHECKLIST
If the 2E43-51 is not working properly, refer to
of possible problems, causes, and recommended actions to resolve the
problem.
Problem
All LEDs are OFF.
No Local
Management
Password screen.
Cannot contact the
2E43-51 from
in-band
management.
Port(s) goes into
standby for no
apparent reason.
User parameters (IP
address, Device and
Module name, etc.)
were lost when the
2E43-51 power was
cycled or the front
panel RESET button
was pressed.
4-6
Table 4-4 Troubleshooting Checklist
Possible Cause
Loss of power.
Installed improperly.
Autobaud is enabled.
Terminal setup is not
correct.
Improper console cable
used.
Using incorrect
Community Name.
The 2E43-51 does not
have an IP address
assigned.
Port is disabled.
No link to device.
The 2E43-51 detected a
loop condition.
Mode switch (7), NVRAM
Reset, was changed
sometime before either
cycling power or
pressing the RESET
button causing the
user-entered parameters
to reset to factory default
settings.
Table 4-4
Recommended Action
Check for proper connection
of the power cable and its
access to a live outlet.
Check the installation.
Press ENTER (RETURN)
(may take up to four times).
Refer to
Chapter 5
setup procedures.
Refer to
Appendix A
proper console port pinouts.
Refer to
Chapter 5
for Community Name setup.
Refer to
Chapter 5
address assignment
procedure.
Enable port.
Check link to device.
1. Review network design
and delete unnecessary
loops.
2. Call the Cabletron
Systems Global Call
Center if the problem
continues.
1. Reenter the lost
parameters as necessary.
2. Call the Cabletron
Systems Global Call
Center if the problem
continues.
2E43-51/2E43-51R User's Guide
for a checklist
for proper
for
for IP
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