HP StorageWorks 2/16V Brocade Fabric OS Command Reference Manual - Supporting - Page 670

2 spinJitter spinJitter Measures line-speed jitter. Synopsis spinjitter [--slot number][-nmegs count][-lb_mode mode][-spd_mode mode][-ports itemlist] Description This test uses the same procedures as spinsilk but with a special pattern for line-speed jitter measurement. The test uses the following pattern: jCRPAT be d7 23 47 6b 8f b3 14 5e fb 35 59 be d7 23 47 For details about the procedures used in this test, refer to spinSilk. The command is supported only on Brocade 200E, 3250, 3850, 3900,4100, 24000, and 48000 platforms; use portLoopbackTest or miniCycle instead. The execution of this command is subject to Admin Domain restrictions that may be in place. Operands The following are optional: --slot number Specifies the slot number on which the diagnostic operates. The ports specified are relative to this slot number. The default is set to 0 and designed to operate on fixed-port-count products. -nmegs count Specifies the number of frames to send in millions. The test progresses until the specified number of frames transmits on each port. The default value is 10, which represents 10 million frames. -lb_mode mode Selects the loopback point for the test. By default, spinJitter uses port loopback. 1 Port loopback (loopback plugs) 2 External (SERDES) loopback 3 Silkscreen loopback 5 Internal (parallel) loopback -spd_mode mode Specifies the speed mode for the test. This parameter is used for Bloom and Condor ASIC-based products only, for which it controls the speed at which each port operates. For 1G-only products, this parameter is ignored. The exact operation of modes 5 through 8 depends on the loopback mode selected. When speed modes 5 through 8 are used with cables, they must be connected EVEN->ODD or the test fails. 0 Run test at 1 Gbit/sec, 2 Gbit/sec, and 4 Gbit/sec. 1 Run test at 1 Gbit/sec. 2 Run test at 2 Gbit/sec (Bloom default). 4 Run test at 4 Gbit/sec (Condor default). For -lb_mode set to 0 or 1, the following speed modes are available to test the speed negotiation. 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. 638 Fabric OS Command Reference Manual 53-1000436-01