Portloopbacktest - HP StorageWorks 2/64 - Core Switch Command Reference Manual
Hp storageworks fabric os 5.x command reference guide (aa-rvhvb-te, september 2005)
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Also See for StorageWorks 2/64 - Core Switch:
- Reference manual (278 pages) ,
- Installation manual (166 pages) ,
- Administrator's manual (152 pages)
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portLoopbackTest
Functional test of port N->N path.
Synopsis
portloopbacktest [--slot number][-nframes count][-lb_mode mode]
[-spd_mode mode][-ports itemlist]
Availability
admin
Description
Use this command to verify the functional operation of the switch by sending frames from the port N
transmitter and looping them back into the same port N receiver. The loopback is done at the parallel
loopback path. The path exercised in this test does not include the media or the fiber cable.
Only one frame is transmitted and received at a time. No external cable is required to run this test. The
port LEDs flicker green rapidly while the test is running.
Following is the test method:
1.
Set all ports for parallel loopback.
2.
Create a frame F of maximum data size (2,112 bytes).
3.
Transmit frame F through port N.
4.
Pick up the frame from the same port N.
5.
Check the eight statistic error counters for nonzero values:
ENC_in, CRC_err, TruncFrm, FrmTooLong, BadEOF, Enc_out, BadOrdSet, DiscC3
6.
Check if the transmit, receive, or class 3 receiver counters are stuck at some value.
7.
Check if the number of frames transmitted is not equal to the number of frames received.
8.
Repeat
step 2
- The number of frames (or passcount) requested is reached.
- All ports are marked bad.
At each pass, the frame is created from a different data type. If seven passes are requested, seven
different data types are used in the test. If eight passes are requested, the first seven frames use unique
data types, and the eighth is the same as the first. The seven data types 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, ...
Because this test does not include the media or the fiber cable in its test path, its results combined with the
results of
crossPortTest
cable) can be used to determine which components of the switch are faulty.
500 Fabric OS commands
through
step 7
for all ports present until:
and
spinSilk
(both of which loop frames using an external loopback
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