3com 4400 User Manual
18
C
HAPTER
1: I
NTRODUCING
THE
S
UPER
S
TACK
3 S
WITCH
4400
Port LEDs — Power over Ethernet mode (3C17205 only)
Packet Green
Power is being delivered to the port.
Green flashing Exceeded port power limit (overCurrent MIB state) or unable
to supply power due to unit over budget (denyLowPriority
MIB state).
MIB state).
Yellow
Power over Ethernet error, no power supplied on port.
Off
No power is being delivered.
Status Yellow flashing Power over Ethernet POST error on port. Flash rate is 4 Hz
Module LEDs
Packet
Refer to the user documentation accompanying the module,
if installed.
if installed.
Status
Refer to the user documentation accompanying the module,
if installed.
if installed.
Off
There is no module installed in the expansion module slot.
Yellow flashing
(fast)
(fast)
The module has failed and has been automatically disabled.
The Switch passes its Power On Self Test and continues to
operate normally even if one or more modules are disabled.
The Switch passes its Power On Self Test and continues to
operate normally even if one or more modules are disabled.
Unit LEDs
1–8
Green
When the Switch forms a stack with other Switch 4400
units, the LED indicates the position of the unit in the stack
and that a link is present.
units, the LED indicates the position of the unit in the stack
and that a link is present.
When the Switch is stand-alone and not part of a stack, LED
1 is on.
1 is on.
Green/Yellow
rotational
rotational
When a software upgrade is in progress, the LEDs of the unit
that is being upgraded ‘rotate’ in an clockwise and
anti-clockwise sequence.
that is being upgraded ‘rotate’ in an clockwise and
anti-clockwise sequence.
Green
flashing
flashing
The Switch physically forms a stack with other Switch 4400
units, but cannot be managed as part of that stack until all
units have been upgraded to software version 2.0 or later.
units, but cannot be managed as part of that stack until all
units have been upgraded to software version 2.0 or later.
Off
A fault has occurred.
Port LED Status LED (3C17205 only)
Green
Port LEDs are operating in power mode
Yellow flashing Port LEDs are operating in normal mode. One or more ports
has a Power over Ethernet error.
Off
Port LEDs are operating in normal mode.
Power Utilization LEDs (3C17205 only)
Green
4 LEDs showing total power being delivered as a percentage
of maximum possible.
of maximum possible.
LED
Color
Indicates
DUA1720-3AAA07.book Page 18 Wednesday, March 17, 2004 1:14 PM