Txdpath - HP StorageWorks 2/64 - Core Switch Command Reference Manual

txdPath

Performs a functional test of ASIC pair TXA,TXD connections.
Synopsis
txdpath [--slot slotnumber][-nframes count][-lb_mode mode][-spd_mode
mode][-nonstop mode][-ports itemlist]
Availability
admin
Description
Use this command to verify the TXA, TXD, and CMI data paths between the chips within a mini-switch.
This is done by configuring all of the ports on the mini-switch in internal loopback and sending a frame
from each quadrant to each other port on the same mini-switch. The frame starts from the CPU and is
transmitted by the first port which also receives the frame and deposits it in central memory. The second
port then reads the frame from central memory using its own TXA,TXD path. The frame is then looped
back one more time and is sent back to the CPU, where it is compared with the transmitted data.
Only one frame is transmitted and received at any one time. External cable is not required to run this test.
The port LEDs flicker green rapidly while the test is running. The test method is as follows:
1. Set all ports present for parallel loopback. Then, for each pair of source quadrants and destination
ports:
2. Set up a source port to route frames to a destination port and a destination port to route frames to the
CPU.
3. Transmit frame F through the source port.
4. Pick up the frame from the destination port.
5. Check if any of the eight statistic error counters are not 0:
ENC_in, CRC_err, TruncFrm, FrmTooLong, BadEOF, Enc_out, BadOrdSet, DiscC3
6. Repeat steps 2 through 5 for all ports present until either the number of frames (or -nmegs count)
requested is reached, or, all ports are marked bad.
At each pass, a different data type is used to create the frame from a palette of seven; meaning if a pass
of seven is requested, seven different frames are used in the test. If eight passes, the first seven frames are
unique, and the eighth is the same as the first. The data palette of seven are:
1. CSPAT: 0x7e, 0x7e, 0x7e, 0x7e, ...
2. BYTE_LFSR: 0x69, 0x01, 0x02, 0x05, ...
3. CHALF_SQ: 0x4a, 0x4a, 0x4a, 0x4a, ...
4. QUAD_NOT: 0x00, 0xff, 0x00, 0xff, ...
5. CQTR_SQ: 0x78, 0x78, 0x78, 0x78, ...
6. CRPAT: 0xbc, 0xbc, 0x23, 0x47, ...
7. RANDOM: 0x25, 0x7f, 0x6e, 0x9a, ...
If seven passes are requested, the seven different data types are used in the test. If eight passes are
requested, the first seven frames use unique data type.
Fabric OS 5.x command reference guide 733