3Com SuperStack II Switch 9300, Getting Started Manual

Page: 33 / 62

Power-up Diagnostics 33
System Diagnostics
This section describes the LEDs that provide
information about the system as a whole.
Power LED Activity
■
Green — The system is powered on; the system is
running or has run diagnostics.
■
No Light — The system has no power; no
diagnostics are running.
Fault LED Activity
■
No Light
— System diagnostics have been
successfully completed and the system is
operational.
■
Solid or Blinking Yellow
— The system has failed
diagnostics, or some other operational error has
occurred.
See Chapter 6 for troubleshooting information.
Ethernet Port Diagnostics
This section summarizes the information displayed by
the port LEDs.
Packet LED Activity
■
No Light — Data is not passing through the port.
■
Blinking Yellow — Data is passing through the
port.
■
Yellow — Data is passing through the port.
Status LED Activity
■
No Light
— The port is off-line.
■
Blinking Green — The port is online but disabled.
■
Green — The port is online and enabled.
See Chapter 6 for troubleshooting information.