Installation guide

PowerConnect B-FCX Switch Hardware Installation Guide 45
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Troubleshooting network connections
3
If a problem persists after taking these actions, contact Dell Technical Support.
Tracing a route
To determine the path through which a Dell device can reach another device, enter a command
similar to the following at any level of the CLI on the device.
PowerConnect> traceroute 192.33.4.7
Syntax: traceroute <host-ip-addr> [maxttl <value>] [minttl <value>] [numeric] [timeout <value>]
[source-ip <ip addr>]
The CLI displays trace route information for each hop as soon as the information is received.
Traceroute requests display all responses to a given TTL. In addition, if there are multiple equal-cost
routes to the destination, the Dell device displays up to two responses by default.
Troubleshooting network connections
• For the indicated port, verify that both ends of the cabling (at the device and the connected
device) are snug.
• Verify that the device and the connected device are both powered on and operating correctly.
SFP+
(1F~4F)
Link or
Activity
On Green A link is established with
the remote port.
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 device is
connected to the receive port on the other network device,
and that the receive port on the Dell device is connected
to the transmit port on the other network device. If you are
not certain, 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 “Cleaning the fiber optic connectors” on page 43.
• Verify that the port has not been disabled through a
configuration change.
• Check that the configuration has not forced the use of the
RJ45 port shared with the SFP port.
• If the other actions don’t resolve the problem, try using a
different port or a different cable.
SFP+
(1F~4F)
Speed
On (Green
or Amber)
A link is established with
the remote port.
Off A link is not established with the remote port. You can do the
following:
• 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.
TABLE 19 Network connection-related LED states (Continued)
LED Desired
State
Meaning Abnormal State Meaning or Action