Troubleshooting network connections, Tracing a route

Troubleshooting network connections

TABLE 19 Network connection-related LED states (Continued)

LED	Desired	Meaning	Abnormal State	Meaning or Action
	State

SFP+	On Green	A link is established with	Off	A link is not established with the remote port. You can do the
(1F~4F)		the remote port.		following:
Link or				• Verify that the connection to the other network device has
Activity				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+	On (Green	A link is established with	Off	A link is not established with the remote port. You can do the
(1F~4F)	or Amber)	the remote port.		following:
Speed				• 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.

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.