34
Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
Information LEDs
The
front
panel
of
the
switch
has
LEDs
for
system
and
port
status.
The
Power,
Locator,
and
Error
LEDs
indicate
the
switch
status.
The
Link
(LINK)
and
Activity
(TX/RX)
LEDs
indicate
the
status
of
the
external
ports.
Notes:
A
yellow
LED
on
the
Lenovo
Flex
System
chassis
is
lit
when
a
system
error
or
event
has
occurred.
To
identify
the
error
or
event,
check
the
Lenovo
Flex
System
management
‐
module
event
log
or
the
switch
system
log.
During
POST,
the
switch
Power
LED
continuously
flashes.
Additionally,
all
of
the
switch
status
LEDs
and
the
licensed
Port
LEDs
are
lit
as
a
visual
indication
they
are
working.
Once
POST
has
successfully
completed,
the
switch
Power
LED
remains
on
and
the
switch
Error
LED
is
off.
Any
errors
that
are
detected
during
POST
are
written
to
the
system
log.
For
information
about
the
command
to
read
the
system
log,
see
the
Command
Reference
for
the
switch.
When
POST
errors
are
written
to
the
system
log,
these
errors
are
also
written
to
the
Lenovo
Flex
System
management
‐
module
event
log.
If
a
hardware
error,
such
as
a
current
fault
occurs,
the
CMM
displays
it.
If
a
firmware
error
occurs,
the
CMM
displays
the
Module
did
not
complete
POST
message
and
a
post
error
code
that
indicates
the
test
that
was
running
when
the
error
was
detected.
Note:
You
can
also
use
the
CMM
to
make
sure
that
the
switch
is
operating
correctly.
For
more
information,
see
the
CMM
documentation.
