20
Fig. 1-5 Port LEDs
1
1
.
.
5
5
.
.
3
3
.
.
L
L
o
o
o
o
p
p
D
D
e
e
t
t
e
e
c
c
t
t
i
i
o
o
n
n
F
F
u
u
n
n
c
c
t
t
i
i
o
o
n
n
When a port causes a loop, the corresponding LED lights up in orange. In this case,
the port is automatically blocked (Default setting: 60 seconds) to prevent a loop. If
the loop is not recovered, the port will be blocked again. Recover the loop while
the port is blocked.
You can change the loop detection function settings (Enable/Disable) by pressing
and holding the LED display change button for more than 10 seconds or
configuring on the configuration screen. For details about settings on the
configuration screen, refer to 4.7.11. When successfully changed, the Loop History
mode LED is lit.
If you want to turn off the Loop History LED display, turn the Switching Hub off
and on. Up to 64 saved loop history entries can be retained in the Switching Hub.
Port LED (Left)
Port LED (Right)
