Troubleshooting Checklist
Troubleshooting
4-5
Cannot contact
the device
through in-band
management.
IP address not assigned.
Refer to the Matrix C Series Configuration
Guide for the IP address assignment
procedure.
Port is disabled.
Enable port. Refer to the Matrix C Series
Configuration Guide for instructions to
enable/disable ports.
No link to device.
Verify that all network connections between
the network management station and the
device are valid and operating.
If the problem continues, contact Enterasys
Networks for technical support.
Port(s) goes into
standby for no
apparent reason.
Loop condition detected.
Verify that Spanning Tree is enabled. Refer to
Matrix C 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 device
power was cycled
or the rear panel
Reset button was
pressed.
Clear NVRAM was set
using CLI commands.
Reenter the lost parameters as necessary.
Refer to Matrix C Series Configuration
Guide for the instructions to configure the
device using CLI commands.
If the problem continues, contact Enterasys
Networks for technical support.
Table 4-2
Troubleshooting Checklist (Continued)
Problem
Possible Cause
Recommended Action
