3Com SuperStackII Switch 3900 Quick Installation Manual - page 9
Quick Installation Guide
9
LED Status
Possible Sources of Problem and Steps to Take
Pckt LED does not light.
Possible sources of problem:
■
Software error has occurred.
■
Traffic is disabled in the software.
Recommended action:
■
Examine the Administration Console display for
diagnostic messages.
■
Verify that the port is not disabled by Spanning
Tree.
■
Contact your network supplier or 3Com Technical
Support.
Stat LED does not light.
Possible sources of problem:
■
System does not recognize a connection to the
port.
■
Cabling is not fully attached to the port.
■
Cabling to the port is faulty.
Recommended actions:
1 Verify that all cables are firmly inserted into both
the system’s affected port and the attached
device.
2 Test for faulty cables. When the problem is
corrected, theLED lights green.
3 If the LED does not light, contact your network
supplier or 3Com Technical Support.