Installation guide

Troubleshooting Checklist
4-6 Troubleshooting
Port(s) goes into
standby for no
apparent reason.
Loop condition detected. Verify that Spanning Tree is enabled.
Refer to the Matrix DFE-Platinum Series
Configuration Guide for the instructions to
set the type of STA.
Review the network design and delete
unnecessary loops.
If the problem continues, contact
Enterasys Networks for technical support.
User parameters (IP
address, device and
module name, etc.)
were lost when the
module power was
cycled, the front
panel OFFLINE/
RESET switch was
pressed.
Position of Mode switch (7),
Persistent Data Reset, was
changed sometime before
either cycling power or
pressing the OFFLINE/RESET
switch, causing the user-
entered parameters to reset to
factory default settings.
Clear Persistent Data that was
set through Local
Management.
The DFE module was moved
either from slot-to-slot or from
chassis-to-chassis.
Reenter the lost parameters as
necessary. Refer to the Matrix
DFE-Platinum Series Configuration Guide
for the instructions to configure the
DFE module.
If the problem continues, contact
Enterasys Networks for technical support.
Table 4-2 Troubleshooting Checklist (continued)
Problem Possible Cause Recommended Action