Cleaning Fiber-Optic Ports And Connectors; Troubleshooting Network Connections - Brocade Communications Systems MLX Series Installation Manual

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.
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
LED
Interface module
Link
Active
If a problem persists after taking these actions, contact Brocade Technical Support.
Brocade MLX Series and Brocade NetIron XMR Hardware Installation Guide
53-1002373-02
Network connection-related LED states
Desired Meaning Abnormal
state state
On A link is Off
established
with the remote
port.
On or The port is Off for an
blinking transmitting extended
and receiving period.
user packets.
Connecting the router to a network device
Meaning or action
A link is not established with the remote port. Try the
following:
•
Verify that the connection to the other network device
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.
The port is not transmitting or receiving user packets. Try 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.
•
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.
6
Table 45
319