4-4
Troubleshooting
Diagnosing with the LEDs
T
rou
bl
esh
oot
in
g
Diagnosing with the LEDs
Tables 4-1 shows LED patterns on the switch and the switch modules that
indicate problem conditions.
1.
Check in the table for the LED pattern you see on your switch
2.
Refer to the corresponding diagnostic tip on the next few pages.
Table 4-1.
LED Error Indicators
LED Pattern Indicating Problems
Diag
Tips
Brief Problem
Description
Po
we
r
Faul
t
S
e
lf T
e
st
Fa
n S
ta
tus
Po
we
r S
tat
us
(o
ne
L
E
D p
e
r
po
wer
su
pp
ly
)
Mod
u
le
S
tat
us
(o
ne
L
E
D p
e
r
m
odu
le
)
Po
rt L
in
k
Off with
power cord
plugged in
1
1
1
1
1
1
A
No power
On
Prolonged
On
Prolonged
On
1
1
1
1
B
Self test fail -
entire switch
On
Flashing
2
Off
Flashing
2
1
1
1
C
Fan fail
On
Flashing
2
Off
1
Flashing
2
1
1
D
Power supply fail
On
Flashing
2
Flashing
2
1
1
Off
1
E
Self test fail -
backplane
On
Flashing
2
Flashing
2
1
1
1
Flashing
2
F
Fixed port self test fail
On
Flashing
2
Flashing
2
1
1
Flashing
2
1
G
Module self test fail
On
Flashing
2
Flashing
2
1
1
Flashing
2
Flashing
2
H
Module-based port
self test fail
On
Off
Flashing
2
1
1
Flashing
2
1
I
Module invalid
(wrong chassis) or
unsupported (needs
newer software)
On
Off
Flashing
2
1
1
Flashing
2
Flashing
2
J
SFP invalid (not
ProCurve/not model B),
or unsupported (needs
newer software)
On
Off
Off
1
1
Flashing
2
On briefly
then off
K
Different module
hot swap
