Brocade 300 Hardware Reference Manual - Manual (Page 30)

FIGURE 6 Installing an SFP in the upper row of port slot
Diagnostic tests
In addition to POST, the Fabric OS includes diagnostic tests to help you troubleshoot the hardware
and firmware. This includes tests of internal connections and circuitry, fixed media, and the
transceivers and cables in use.
The tests are implemented by command, either through a Telnet session or through a terminal set up
for a serial connection to the switch. Some tests require the ports to be connected by external cables,
to allow diagnostics to verify the serializer/deserializer interface, transceiver, and cable. Some tests
require loopback plugs.
All diagnostic tests are run at link speeds of 1, 2, 4, and 8 Gbps, depending on the speed of the link
being tested.
NOTE
Diagnostic tests can temporarily lock the transmit and receive speed of the links during diagnostic
testing.
For information about specific diagnostic tests, refer to the Fabric OS Troubleshooting and Diagnostics
Guide .
Field Replaceable Units (FRUs)
In the Brocade 300, the only parts that are field replaceable are the SFPs. The entire switch is a FRU.
The fan units and power supply are not field replaceable in this switch.
Diagnostic tests
30 Brocade 300 Hardware Reference Manual
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