Troubleshooting With The Status Leds - 3Com CoreBuilder 5000 User Manual

4-2 T
ROUBLESHOOTING
Troubleshooting
With the Status LEDs
A blinking Port Status indicator signals a problem with a port or a link
connected to a port. Once a port detects a problem, you can further
analyze the problem by counting the number of blinks.
provides troubleshooting suggestions for each of the blinking
sequences.
Table 4-2

Troubleshooting With the Status LEDs

LED State Indication
1 Blink Link Failure
2 Blinks Port
Partitioned
Off Ports Disabled Ports disabled.
Possible
Problem Troubleshooting Suggestions
Cable(s) not Connect cable(s).
connected.
Cable(s) broken. Check cables with cable tester.
Repair or replace cables.
Link Integrity Make sure that both ends of the
mismatch. connection have the same Link
Integrity setting.
Faulty cable. Check cable with cable tester.
Repair or replace cable.
Looped cable. Check the cable and replace if
necessary.
Enable ports.
24-Port module Check the controller module
not powered. Power LEDs.
Broken LED. Press the LED test on the
controller module.
Bad 24-Port Replace module.
module.
Table 4-2