Observing Leds - Dell PowerConnect B-TI24x Hardware Installation Manual

3
Testing connectivity

Observing LEDs

After you install the network cables, you can observe certain LEDs to determine if the network
connections are functioning properly.
the desired state of each LED, possible abnormal states of each LED, and what to do if an LED
indicates an abnormal state.
TABLE 5
LED
Link
(Lnk)
Active
(Act)
If a problem persists after taking these actions, contact Dell technical support.
30
Network connection-related LED states
Desired State Meaning
On (Green) A link is established
with the remote port.
On or blinking The port is
(Yellow) transmitting and
receiving user
packets.
Table 5 describes the LEDs related to network connections,
Abnormal Meaning or Action
State
Off A link is not established with the remote port.
You can do the following:
•
Verify that the connection to the other
network device has been properly made.
Also, make certain that the other
network device is powered on and
operating correctly.
•
Verify that the transmit port on the Dell
PowerConnect device is connected to the
receive port on the other network device,
and that the receive port on the Dell
PowerConnect device is connected to the
transmit port on the other network
device. If you are uncertain, remove the
two cable connectors from the port
connector and reinsert them in the port
connector, reversing their order.
•
Dust may have accumulated in the cable
connector or port connector. For
information about cleaning the
connectors, refer to
connectors".
•
If the other actions don't resolve the
problem, try using a different port or a
different cable.
Off for an The port is not transmitting or receiving user
extended packets. You can do the following:
•
period.
Check the Link LED to make sure the link
is still established with the remote port.
If not, take the actions described in the
Meaning or Action column for the Link
LED.
•
Verify that the port has not been
disabled through a configuration
change. You can use the CLI. If you have
configured an IP address on the device,
you also can use Brocade Network
Advisor.
Dell PowerConnect B-Series TI24X Hardware Installation Guide
"Fiber-optic
53-1002265-01