Enterasys Networks 2G4082-25 ユーザーズマニュアル

Troubleshooting Checklist

4-4 Troubleshooting

If the module is not working properly, refer to 

 for a checklist of problems, possible 

causes, and recommended actions to resolve the problem.

All LEDs are OFF.

Loss of power.

Ensure that the module was installed properly 
according to the installation instructions in 

, 

and that the host chassis is providing power.

No Local 
Management 
Password screen.

Incorrect terminal setup.

Refer to the Enterasys Matrix DFE-Diamond/Platinum 
Series Configuration Guide for proper setup 
procedures.

Improper console cable 
pinouts.

 for proper COM port pinouts.

Corrupt firmware image, or 
hardware fault.

If possible, attempt to download the image to the 
module again. Refer to the section, “

,” on page B-1 for instructions to clear 

NVRAM.

Cannot navigate 
beyond Password 
screen.

Improper username/ 
password combination 
entered.

If the username/password combination has been 
forgotten, refer to the section, “

,” on page B-1 for instructions on how to set 

the mode switch to reset the username/password 
combination to the default values.

Cannot contact the 
module through 
in-band 
management.

IP address not assigned.

Refer to the Enterasys Matrix DFE-Diamond/Platinum 
Series Configuration Guide for the IP address 
assignment procedure.

Port is disabled.

Enable port. Refer to the Enterasys Matrix DFE-
Diamond/Platinum 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-Diamond/Platinum 
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.

Port(s) goes into 
standby for no 
apparent reason.

Loop condition detected.

Verify that Spanning Tree is enabled. Refer to the 
Enterasys Matrix DFE-Diamond/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.