Cabletron Systems 6E133-25 User Manual

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Chapter 4: Troubleshooting
4-6
6E122-26, 6E132-25, 6E123-26 and 6E133-25 User’s Guide
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.
Table 4-4
Troubleshooting Checklist  
Problem
Possible Cause
Recommended Action
All LEDs are OFF.
Loss of power to the 
6C105 chassis.
Check the proper connection 
of the power cable and its 
access to a live outlet.
6E13X-25 or 6E12X-26 
not properly installed.
Check the installation.
No Local 
Management 
Password screen.
Autobaud enabled. But 
baud rate has not yet 
been sensed.
Press ENTER (RETURN) 
(may take up to four times).
Terminal setup is not 
correct.
 for proper 
setup procedures.
Improper console cable 
pinouts.
 for 
proper console port pinouts.
Cannot contact the 
6E132-25 or 
6E122-26 from 
in-band 
management.
Improper Community 
Names Table.
 
for Community Names Table 
setup.
6E12X-26 or 6E13X-25 
does not have an IP 
address.
 for IP 
address assignment 
procedure.
Port is disabled.
Enable port.
No link to device.
Check link to device.
Port(s) goes into 
standby for no 
apparent reason.
6E12X-26 or 6E13X-25 
detects a looped 
condition.
Review network design and 
delete unnecessary loops.
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.
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.
Reenter the lost parameters 
as necessary. Call the 
Cabletron Systems GCC if 
problem continues.