HP StorageWorks MSA 2/8 HP StorageWorks Fabric OS V3.1.x/4.1.x Reference Guide - Page 59

backPort ■ ASIC errors along each path. The test will check for CRC and ENC errors for each port used between the source and destination ports to help isolate failures. It will also check that each member of every trunk group along the path has sent or received at least one frame. Note: Area routing between user ports is not tested. Operands This command has the following operands: -nframes num -ports list -lb_mode mode -fr_type type Specify the number of frame sequences to send. The default value is 100. Specify a list of user ports. The default value is all user ports. Specify the loopback mode for source and destination standard meanings. The default mode is 5. The valid modes are: 0 cable loopback 1 plug loopback 2 external loopback (SERDES) 5 internal loopback (ASIC) Specify the frame types to send. The default type is 1. The valid types are: 0 single frame 1 spinFab frames 2 spinFab 1K frames Fabric OS Version 3.1.x/4.1.x Reference Guide 59