Troubleshooting Checklist - Cabletron Systems 2H23-50R User Manual

4.3

TROUBLESHOOTING CHECKLIST

If the 2H23-50R 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
2H23-50R 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
2H23-50R power
was cycled or the
front panel RESET
button was pressed.
2H23-50R/2H33-37R 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 device does not
have an IP address
assigned.
Port is disabled.
No link to device.
The device 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 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.
for proper
for
for IP
4-7