Cabletron Systems NBR-420 사용자 설명서
Chapter 4: Troubleshooting
Page 4-4
NBR-SERIES Installation Guide
4.2 TROUBLESHOOTING CHECKLIST
If your NBR is not operating properly, the following checklist describes
some of the problems that may occur, possible causes for the problem,
and suggestions for resolving the problem.
some of the problems that may occur, possible causes for the problem,
and suggestions for resolving the problem.
Table 4-2
Troubleshooting Checklist
Problem
Possible Causes
Recommended
Action
Action
No LEDs on.
Loss of Power.
NBR not properly
installed.
installed.
Check that the NBR has
adequate power.
adequate power.
Verify proper
installation, and check
to see that the PWR
LED is green.
installation, and check
to see that the PWR
LED is green.
No Local Management
Password screen.
Password screen.
Terminal setup is not
correct.
correct.
Improper console cable/
UPS cable pinouts.
UPS cable pinouts.
Refer to your NBR
Local Management
Guide for proper setup
procedures.
Local Management
Guide for proper setup
procedures.
Refer to your NBR
Local Management
Guide for proper
console/ UPS port
pinouts.
Local Management
Guide for proper
console/ UPS port
pinouts.
Cannot contact the
NBR from in-band
management.
NBR from in-band
management.
Improper Community
Names Table.
Names Table.
NBR does not have an
IP address.
IP address.
No link to device.
Refer to your NBR
Local Management
Guide for Community
Names Table setup and
IP address assignment
procedures.
Local Management
Guide for Community
Names Table setup and
IP address assignment
procedures.
Check link to device.