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4.3
TROUBLESHOOTING CHECKLIST
If the 2H28-08R 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
2H28-08R 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
2H28-08R power
was cycled or the
front panel RESET
button was pressed.
2H28-08R SmartSwitch 2208 User's Guide
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 2H28-08R does not
have an IP address
assigned.
Port is disabled.
No link to device.
The 2H28-08R 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.
Troubleshooting Checklist
Table 4-4
for a checklist
Recommended Action
Check for proper connection
of the power cables and
access to live outlets.
Check the installation. See
Chapter 3
for details.
Press ENTER (RETURN) key
(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. Contact the Cabletron
Systems Global Call Center
if problem still exists.
1. Reenter the lost
parameters as necessary.
2. Call the Cabletron Systems
Global Call Center if
problem still exists.
for proper
for
for IP
4-5
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Table of Contents
Troubleshooting
