Troubleshooting Checklist - Cabletron Systems 6E122-26 User Manual

Chapter 4: Troubleshooting
4.3

TROUBLESHOOTING CHECKLIST

If the 6E12X-26 or 6E13X-25 is not working properly, refer to
for a checklist of possible problems, causes, and recommended actions to
resolve the problem.
Problem
All LEDs are OFF.
No Local
Management
Password screen.
Cannot contact the
6E132-25 or
6E122-26 from
in-band
management.
Port(s) goes into
standby for no
apparent reason.
User parameters (IP
address, Device and
Module name, etc.)
are lost when the
6E12X-26 or
6E13X-25 is
powered down or
the front panel
RESET button is
pressed.
4-6 6E122-26, 6E132-25, 6E123-26 and 6E133-25 User's Guide
Table 4-4 Troubleshooting Checklist
Possible Cause
Loss of power to the
6C105 chassis.
6E13X-25 or 6E12X-26
not properly installed.
Autobaud enabled. But
baud rate has not yet
been sensed.
Terminal setup is not
correct.
Improper console cable
pinouts.
Improper Community
Names Table.
6E12X-26 or 6E13X-25
does not have an IP
address.
Port is disabled.
No link to device.
6E12X-26 or 6E13X-25
detects a looped
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.
Recommended Action
Check the 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 Names Table
setup.
Refer to Chapter 5
address assignment
procedure.
Enable port.
Check link to device.
Review network design and
delete unnecessary loops.
Reenter the lost parameters
as necessary. Call the
Cabletron Systems GCC if
problem continues.
Table 4-4
for proper
for
for IP