Troubleshooting Checklist

Troubleshooting Checklist

If the module is not working properly, refer to Table 4‐1 for a checklist of problems, possible causes, and recommended actions to resolve the problem.

Table 4-1 Troubleshooting Checklist

Problem

Possible Cause

Recommended Action

 

 

 

All LEDs are OFF.

Loss of power.

Ensure that the module was installed properly

 

 

according to the installation instructions in

 

 

Chapter 3, and that the host chassis is providing

 

 

power.

 

 

 

No Local

Incorrect terminal setup.

Refer to the Enterasys Matrix DFE-Gold Series

Management

 

Configuration Guide for proper setup procedures.

Password screen.

 

 

Improper console cable

Refer to Appendix A for proper COM port pinouts.

 

 

pinouts.

 

 

 

 

 

Corrupt firmware image,

If possible, attempt to download the image to the

 

or hardware fault.

module again. Refer to the section, “Setting the

 

 

Mode Switches,” on page B-2 for instructions to

 

 

clear NVRAM.

 

 

 

Cannot navigate

Improper username/

If the username/password combination has been

beyond Password

password combination

forgotten, refer to the section, “Setting the Mode

screen.

entered.

Switches,” on page B-2 for instructions on how to

 

 

set the mode switch to reset the username/

 

 

password combination to the default values.

 

 

 

Cannot contact the

IP address not

Refer to the Enterasys Matrix DFE-Gold Series

module through

assigned.

Configuration Guide for the IP address

in-band

 

assignment procedure.

management.

 

 

Port is disabled.

Enable port. Refer to the Enterasys Matrix

 

 

 

DFE-Gold Series Configuration Guide for

 

 

instructions to enable/disable ports.

Host Port policy and/or management VLAN is incorrectly configured, or not configured.

Verify that a management VLAN exists and that it is associated with the Host Port.

Refer to the Enterasys Matrix DFE-Gold Series Configuration Guide for information about Host Port and management VLAN configuration.

No link to device.

Verify that all network connections between the

 

network management station and the module are

 

valid and operating.

 

If the problem continues, contact Enterasys

 

Networks for technical support.

 

 

Matrix DFE-Gold Series Modules Hardware Installation Guide 4-7

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Enterasys Networks 4H4283-49, 4H4284-49, 4H4202-72 Troubleshooting Checklist, Refer to the Enterasys Matrix DFE-Gold Series

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