© Copyright Lenovo 2018
Chapter 2: Installing and Removing the NE2552E
35
Switch Status LEDs
The
following
table
provides
descriptions
of
the
switch
status
LEDs
on
the
front
panel
of
the
switch.
Port Status LEDs
The
following
table
provides
descriptions
of
the
port
status
LEDs
on
the
front
panel
of
the
switch.
Table 3.
System
status
LEDs
behavior
LED
State
Functional Meaning
‐
Power
Steady
green
When
lit,
this
LED
indicates
that
the
switch
is
on.
Off
When
this
LED
is
off
and
the
yellow
Error
LED
is
lit,
it
indicates
a
critical
alert.
If
both
the
Power
and
Error
LEDs
are
off,
it
indi
‐
cates
that
the
switch
is
off.
‐
Locator
Steady
blue
When
prompted
by
a
user
action
in
the
CMM,
this
LED
is
lit
to
help
identify
the
location
of
the
switch.
Off
The
switch
has
not
received
a
user
‐
prompted
locator
command
from
the
CMM.
‐
Error
Steady
yellow
When
lit,
this
LED
indicates
a
POST
failure
or
critical
alert.
As
a
result,
the
system
‐
error
LED
on
the
Lenovo
Flex
System
chassis
is
also
lit.
Off
When
this
LED
is
off
and
the
green
Power
LED
is
lit,
it
indicates
that
the
switch
is
working
correctly.
If
both
the
Power
and
Error
LEDs
are
off,
it
indi
‐
cates
that
the
switch
is
off.
Table 4.
System
status
LEDs
behavior
LED
State
Functional Meaning
Link
Steady
green
A
connection
(or
link)
is
established
between
the
corresponding
port
and
the
attached
device.
Off
There
is
no
signal
on
the
corresponding
port,
or
the
link
is
down.
Tx/Rx
Flashing
green
The
corresponding
port
link
is
transmitting
and/or
receiving.
Off
There
is
currently
no
traffic
on
the
port.
