Leds - 3Com 4070 Getting Started Manual

LEDs

Table 4 lists LEDs visible on the front of the Switch, and how to read their
status according to color. For information on using the LEDs for problem
solving, see
Table 4 LED behavior
LED Color
Port Status LEDs
Packet Yellow
Off
Status Green
Green flashing
Yellow
Yellow flashing
Yellow flashing
(fast)
Off
Module Status LEDs
Green
Yellow
Yellow flashing
Yellow flashing
(fast)
Off
Unit LEDs
1–4 Green
Off
Unit Status LED
Green
3Com Switch 40x0 Family — Front View Detail
"Checking for Correct Operation of LEDs"
Indicates
Packets are being transmitted/received on the port.
No packets are being transmitted/received on the port.
A high speed (1000 Mbps) link is present, and the port
is enabled.
A high speed (1000 Mbps) link is present, but the port
is disabled.
A low speed (10/100 Mbps) link is present, and the
port is enabled (4050/4060 only).
A low speed (10/100 Mbps) link is present, but the port
is disabled (4050/4060 only).
Port has failed self-test and has automatically been
disabled.
No link is present.
The Module is installed and supported. The Link Status
has been determined for a single port Module.
The Module is installed and supported. The Module
has multi-ports or there is no link for a single port
Module.
The Module is installed but not supported. Note that
the unit will continue to operate normally.
A port on the Module has failed POST and has been
automatically disabled.
The Module is not installed.
Determines the identity of the Switch when
interconnected to another Switch to create a
Distributed Fabric.
A fault has occurred.
The Switch is powered-up and operating normally.
17
on page 28.