Brocade Communications Systems A7533A - Brocade 4Gb SAN Switch Base Command Reference Manual page 544

2
portLoopbackTest
--slot number
-nframes count
-lb_mode mode
-spd_mode mode
For lb_mode set to 0 or 1, the following speed modes are available to test the speed negotiation:
For lb_mode set to 2 or 3, the following speed modes are available to test FIFO underrun.
-ports itemlist
Examples To run a functional test of a connection:
512
Specify the slot number on which the diagnostic will operate. The ports
specified will be relative to this slot number. The default is set to 0 and
designed to operate on fixed-port-count products.
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, this test uses internal
loopback. Valid values are as follows:
1 Port Loopback (loopback plugs)
2 External (SERDES) loopback
5 Internal (parallel) loopback
Specify the speed mode for the test. This parameter is used only with Bloom
and Condor ASIC-based products, where it controls the speed at which each
port is operated. For 1 Gbit/sec-only products, it is ignored. The exact
operation of speed modes 5 through 8 depends upon the loopback mode
selected. When speed modes 5 through 8 are used with cables, they must be
connected even to odd or the test will fail.
0 Runs test at 1 Gbit/sec, 2 Gbit/sec, and 4 Gbit/sec.
1 Runs test at 1 Gbit/sec.
2 Runs test at 2 Gbit/sec (Bloom default).
4 Runs test at 4 Gbit/sec (Condor default).
3 Set all even ports' speed for autonegotiate; set all odd ports' speed for
1 Gbit/sec.
4 Set all even ports' speed for autonegotiate; set all odd ports' speed for
2 Gbit/sec.
5 Set all odd ports' speed for autonegotiate; set all even ports' speed for
1 Gbit/sec.
6 Set all odd ports' speed for autonegotiate; set all even ports' speed for
2 Gbit/sec.
3,5
Gbit/sec.
4,6
Gbit/sec.
Specify a list of blade ports to test. By default, all of the blade ports in the
specified slot (--slot) are used. See itemList for more information.
switch:admin> portloopbacktest -ports 1/10-1/20 -nframes 1 -lb_mode 1
Running Port Loopback Test ....
passed.
Set all even ports' speed for 2 Gbit/sec; set all odd ports' speed for 1
Set all even ports' speed for 1 Gbit/sec; set all odd ports' speed for 2
Fabric OS Command Reference Manual
53-1000436-01