Brocade Communications Systems 53-1002373-02 manual Cleaning fiber-optic ports and connectors

Connecting the router to a network device 6

Cleaning fiber-optic ports and connectors

To avoid problems with connections between fiber-optic ports and fiber cable connectors, it is strongly recommended that you clean ports and connectors each time you make a connection. Dust can accumulate inside the port and connector and cause problems as serious as reducing the optic launch power.

To clean the fiber-optic ports and cable connectors, it is recommended that you use a fiber-optic reel-type cleaner. You can purchase this type of cleaner from the following website:

http://www.fisfiber.com/

When you are not using a fiber-optic transceiver port, always replace the protective cover.

Troubleshooting network connections

Observe connection LEDs to determine if network connections are functioning properly. Table 45 lists the LEDs related to the network connections, the desired state of each LED, possible abnormal states of each LED, and what to do if an LED indicates an abnormal state.

TABLE 45	Network connection-related LED states
LED	Desired	Meaning	Abnormal	Meaning or action
	state		state
Interface module
Link	On	A link is	Off	A link is not established with the remote port. Try the
		established		following:
		with the remote		• Verify that the connection to the other network device
		port.		has been properly made, and that the other network
				device is powered on and operating correctly.
				• Verify that the transmit port on a router is connected to
				the receive port on the other network device, and that
				the receive port on the router is connected to the
				transmit port on the other network device. If you are not
				certain, remove the two cable connectors 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 fiber-optic ports and
				connectors” on page 319.
				• If these actions do not resolve the problem, try using a
				different port or a different cable.
Active	On or	The port is	Off for an	The port is not transmitting or receiving user packets. Try the
	blinking	transmitting	extended	following:
		and receiving	period.	• Check the Link LED to make sure the link is still
		user packets.		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 the Web management interface or IronView Network Manager.

If a problem persists after taking these actions, contact Brocade Technical Support.

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