Fcrpathtest - Brocade Communications Systems Brocade 8/12c Command Reference Manual

22

fcrPathTest

fcrPathTest
Tests the data path connection between the FC Router FPGA and the central ASIC.
SYNOPSIS
fcrpathtest
[--slot slot]
[-unit number]
[-path mode]
[-nframes count]
DESCRIPTION
Use this command to verify the data path connecting the FC Router field-programmable gate array
(FPGA) and the central ASIC by sending frames from the FC Router FPGA port N transmitter, and
looping the frames back into the same port's receiver. The loopback is accomplished 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 any one time. An 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.
2.
3.
4.
5.
6.
7.
8.
At each pass, a different data type is used to create the frame from a palette of seven; 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 pass.
The data palette of seven includes:
NOTES
The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may be in
place. Refer to Chapter 1, "Using Fabric OS Commands" and Appendix A, "Command Availability" for
details.
This command is supported only on the Brocade FR4-18i blade.
The switch must be offline for this test to run.
314
Set all ports present for parallel loopback.
Create a frame F of maximum data size (2,112 bytes).
Transmit frame F by way of the FC Router FPGA port N.
Pick up the frame from the same port N.
Check if any of the following eight statistic error counters are nonzero: ENC_in, CRC_err, TruncFrm,
FrmTooLong, BadEOF, Enc_out, BadOrdSet, DropRxUnavail.
Check if the transmit, receive, or Class 3 receiver counters are stuck at some value.
Check if the number of frames transmitted is not equal to the number of frames received.
Repeat steps 2 through 7 for all ports present until one of the following conditions is met:
a. The number of frames (or passCount) requested is reached.
b. All ports are marked bad.
CSPAT: 0x7e, 0x7e, 0x7e, 0x7e, ...
BYTE_LFSR: 0x69, 0x01, 0x02, 0x05, ...
CHALF_SQ: 0x4a, 0x4a, 0x4a, 0x4a, ...
QUAD_NOT: 0x00, 0xff, 0x00, 0xff, ...
CQTR_SQ: 0x78, 0x78, 0x78, 0x78, ...
CRPAT: 0xbc, 0xbc, 0x23, 0x47, ...
RANDOM: 0x25, 0x7f, 0x6e, 0x9a, ...
Fabric OS Command Reference
53-1001764-01