Enterasys Networks 7S4280-19-SYS - Manual (Page 64)

Troubleshooting Checklist
5-4 Troubleshooting
Troubleshooting Checklist
If the NAC Controller PEP is not working properly, refer to Table 5‐2 for a checklist of problems,
possible causes, and recommended actions to resolve the problem.
TX
(Transmit) None Port enabled, but no activity. If it is known that the port should be active
and is not, contact Enterasys Networks for
technical support.
Green Flashing. Indicates data
transmission activity. Rate of
flashing indicates the data rate. None.
Red Flashing. Fault or Error
(collision). None, unless there is a high rate of activity.
In this case, check for network configuration
problems or a defective device.
Table 5-1 LANVIEW LEDs (continued)
LED Color State Recommended Action
Table 5-2 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 4 ,
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. Refer to “ 2S4082-25 COM Port Pinout Assignments ”
on page A-6 and “ 7S4280-19 COM Port Pinout
Assignments ” on page A-7 for proper NAC Controller
PEP COM port pinouts.
Corrupt firmware image, or
hardware fault. If possible, attempt to download the image to the
module again. Refer to “
Setting the Mode Switches ” 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 “
Setting the Mode Switches ” on
page B-1 for instructions on how to set the mode
switch to reset the username/password combination to
the default values.