LED Descriptions
A-4 Problem Solving
LED
Off
On (Green)
On (Yellow)
Flashing
Port Status
LEDs
No valid link
being received
on the port.
No cable is
attached.
Port is broken.
Port is enabled
and is receiving
a valid link.
Port failure.
(Green)
Port is
management
disabled for
forwarding but
is still receiving
a valid link.
Port Activity
LEDs
No traffic is
being received/
transmitted to
the port.
Port is enabled
onto the front
panel and is
transmitting or
receiving heavy
traffic.
Port is enabled
onto a backplane
channel and is
transmitting or
receiving heavy
traffic (in a
DEChub One or
MultiSwitch
900).
(Green)
Port is receiving/
transmitting
traffic on the
front panel.
(Yellow)
Port is receiving/
transmitting
traffic on the
back panel.