3Com 3C17203 Getting Started Guide - Page 16

Color, Indicates, Port Status LEDs, Module Packet LEDs, Unit LEDs, LED behavior

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16 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4400 Table 5 LED behavior LED Color Port Status LEDs Indicates Packet Green Yellow Full duplex packets are being transmitted/received on the port. Half duplex packets are being transmitted/received on the port. Off Status Green No packets are being transmitted/received on the port. A high speed (100 Mbps) link is present, and the port is enabled. Green flashing A high speed (100 Mbps) link is present, but the port is disabled. Yellow A low speed (10 Mbps) link is present, and the port is enabled. Yellow flashing A low speed (10 Mbps) link is present, but the port is disabled. Off No link is present. Module Packet LEDs Green Full duplex activity being received or transmitted Yellow Off Half duplex activity being received or transmitted No activity Module Status LEDs Green The Module is installed and supported. The Link Status has been determined, and the port is enabled. Green flashing The Module is installed and supported. The Link Status has been determined, but the port is disabled. Yellow The Module is installed and supported. The Link status has not been determined or there is no Link for a single port Module. Yellow flashing A Module is installed, however, it is not supported. Off The Module is not installed. 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. When the Switch is stand-alone and not part of a stack, LED 1 is on.

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16
C
HAPTER
1: I
NTRODUCING
THE
S
UPER
S
TACK
3 S
WITCH
4400
Table 5
LED behavior
LED
Color
Indicates
Port Status LEDs
Packet
Green
Full duplex packets are being transmitted/received on the
port.
Yellow
Half duplex packets are being transmitted/received on the
port.
Off
No packets are being transmitted/received on the port.
Status
Green
A high speed (100 Mbps) link is present, and the port is
enabled.
Green flashing
A high speed (100 Mbps) link is present, but the port is
disabled.
Yellow
A low speed (10 Mbps) link is present, and the port is
enabled.
Yellow flashing
A low speed (10 Mbps) link is present, but the port is
disabled.
Off
No link is present.
Module Packet LEDs
Green
Full duplex activity being received or transmitted
Yellow
Half duplex activity being received or transmitted
Off
No activity
Module Status LEDs
Green
The Module is installed and supported. The Link Status has
been determined, and the port is enabled.
Green flashing
The Module is installed and supported. The Link Status has
been determined, but the port is disabled.
Yellow
The Module is installed and supported. The Link status has
not been determined or there is no Link for a single port
Module.
Yellow flashing
A Module is installed, however, it is not supported.
Off
The Module is not installed.
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.
When the Switch is stand-alone and not part of a stack, LED
1 is on.