Brocade Fabric OS Command Reference (Supporting Fabric OS v7.3.0) - Manual (Page 896)

866 Fabric OS Command Reference
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portLoopbackTest
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At each pass, the frame is created from a different data type of a palette of seven. If seven passes are
requested, seven different data types are used in the test. If eight passes are requested, the first seven
frames use unique data types, and the eighth is the same as the first. The seven data types are:
CSPAT: 0x7e, 0x7e, 0x7e, 0x7e, ...
BYTE_LFSR: 0x69, 0x01, 0x02, 0x05, ...
CHALF_SQ: 0x4a, 0x4a, 0x4a, 0x4a, ...
QUAD_NOT: 0x00, 0xff, 0x00, 0xff, ...
CQTR_SQ: 0x78, 0x78, 0x78, 0x78, ...
CRPAT: 0xbc, 0xbc, 0x23, 0x47, ...
RANDOM: 0x25, 0x7f, 0x6e, 0x9a, ....
NOTES
Do not abort this test prematurely, using CTRL-C or q to quit. Doing so may cause the test to report
unexpected errors. Errors may vary depending on the hardware platform.
You cannot interrupt the test by pressing the return key (<cr>).
This command does not support High Availability (HA).
The Brocade 8510/DCX series cannot negotiate speeds of 1 Gbps.
This diagnostic cannot be run on an operational switch. You must disable the switch using the
chassisDisable command before you can run this test. After the test completes, re-enable the switch
using the chassisEnable command. Do not use the switchDisable command followed by manually
shutting down the ports before running the test. This will not work because executing switchEnable after
the test completes will leave the ports in the same state as before. The only way to bring the ports down
before running the test and back up after the test completes is by using the chassisDisable command
followed by the chassisEnable command.
The Brocade FCoE10-24 blade (ceePortLoopbackTest) supports only lb_mode 1, 2, and 8.
For the Brocade FCoE10-24 blade (ceePortLoopbackTest), if the switch is online and the ports are
shutdown, offline diagnostics continues to run and the blade moves to inoperable state. Execute
slotpoweroff and slotpoweroncommands to recover the blade.
The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may be in
place. Refer to Chapter 1, "Using Fabric OS Commands" and Appendix A, "Command Availability" for
details.
OPERANDS
This command has the following operands:
--slot slot
Specifies the number of the slot on which to run the diagnostics. All eligible ports
relative to the slot number are tested. The default is 0 and designed to operate on
fixed-port-count products.
-nframes count
Specifies the number of frames to send. The test progresses until the specified
number of frames has been transmitted on each port. The default value is 1. The
maximum number of frames sent is limited to 1000. If the number of frames
exceeds 1000, the test proceeds with the initial 1000 frames and displays a
warning message.
-lb_mode mode
Specifies the loopback mode for the test. By default, this test uses the internal
loopback. Valid values depend on the platform on which the command is
executed. Unsupported values are rejected with an appropriate message. To run
this test with mode values of 1 and 7, loopback cables must be connected to all
front end ports or the test will fail.
1
Port Loopback (loopback plugs)