Brocade Communications Systems A7533A - Brocade 4Gb SAN Switch Base Command Reference Manual page 140

2
crossPortTest
The crossPortTest command behavior depends on the modes activated.
SwitchEnable or SwitchDisable Mode
In online mode (in which the switch is enabled prior to executing the crossPortTest command), only
ports that are cable loopbacked to ports in the same switch are tested. Ports connected outside of
the switch are ignored.
To run the crossPortTest command successfully the test must find at least one port (-lb_mode = 1,
this is the default) or two ports (-lb_mode = 0) cable loopbacked to each other. If this criteria is not
met, one of the following message is displayed:
In offline mode (when the switch is disabled prior to executing the crossPortTest command) all
ports are assumed to be cable loopbacked to different ports in the same switch. If one or more
ports are not connected, the test aborts.
All ports must be connected using loopback plugs or loopback cables for this test to run correctly in
offline mode.
The test determines which port is connected to which port transmitting frames. If any ports are not
properly connected (improperly seated SFPs or cables, bad SFPs or cables, or improper connection
or improper connection of SWL to LWL), the following message is displayed:
Since this test includes the media and the fiber cable in its test path, its results combined with the
results of portLoopbackTest and spinSilk can be used to determine which components of the
switch are faulty. It is also possible to use loopback modes 3 and 5 to further isolate failures; refer
to -lb_mode, below.
Operands This command has the following operands:
-nframes count
-lb_mode mode
108
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, ...
Need at least 1 port(s) connected to run this test.
Need at least 2 port(s) cross-connected to run this test.
One or more ports is not active, please double check
fibre channel connections on all ports.
Specify the number of frames to send. The test will progress until the
specified number of frames has been transmitted on each port. The default
value is 10.
Specify the loopback mode for the test. By default, crossPortTest uses mode
1 port loopback. Valid values are:
0 Cable loopback
1 Port loopback (loopback plugs)
2 External (SERDES) loopback
3 Silkscreen loopback
5 Internal (parallel) loopback
Fabric OS Command Reference Manual
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