Enterasys 5H102-48 Installation Manual page 40

Troubleshooting Checklist
Table 4-2 Troubleshooting Checklist (Continued)
Problem
Cannot contact
the module
through 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 module
power was cycled
or the front panel
RESET button
was pressed.
4-6 Troubleshooting
Possible Cause
IP address not assigned.
Port is disabled.
No link to device.
Loop condition detected.
1. Position of 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.
2. Clear NVRAM was set
through Local
Management.
Recommended Action
Refer to the MATRIX E5 Series Modules
Local Management User's Guide for the IP
address assignment procedure.
Enable port. Refer to the MATRIX E5 Series
Modules Local Management User's Guide
for instructions to enable/disable ports.
1. Verify that all network connections
between the network management station
and the module are valid and operating.
2. If the problem continues, contact Enterasys
Networks for technical support.
1. Verify that Spanning Tree is enabled.
Refer to the MATRIX E5 Series Modules
Local Management User's Guide for the
instructions to set the type of STA.
2. Review the network design and delete
unnecessary loops.
3. If the problem continues, contact Enterasys
Networks for technical support.
1. Reenter the lost parameters as necessary.
Refer to the MATRIX E5 Series Modules
Local Management User's Guide for the
instructions to configure the device
through Local Management.
2. If the problem continues, contact Enterasys
Networks for technical support.