Dell PowerSwitch S4112F-ON Open Networking Hardware Diagnostic Guide April 201 - Page 57

nvramtool

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Connect the SFP+ ports with an external Loopback cable. • PRBS MAC level test ./nputool -i -t 6 • PRBS EXT level test "./nputool -i -t 7 NPU temperature Show the current NPU temperature. • nputool -i -s temp • nputool --init --show temp root@dell-diag-os:~# nputool -i -s temp DMA pool size: 16777216 PCI unit 0: Dev 0x8375, Rev 0x11, Chip BCM88375_B0, Driver BCM88375_B0 sysconf_probe successful global_sal_config successful *** 1 BCM devices are detected Diag NPU initialization over NPU 0 Temperature monitor current peak 0 41.8 44.2 1 41.3 44.7 2 36.4 38.8 3 39.8 43.2 Average 39.8, maximum peak 44.7 root@dell-diag-os:~# nputool -init -show temp DMA pool size: 16777216 PCI unit 0: Dev 0x8375, Rev 0x11, Chip BCM88375_B0, Driver BCM88375_B0 sysconf_probe successful global_sal_config successful *** 1 BCM devices are detected Diag NPU initialization over NPU 0 Temperature monitor current peak 0 42.3 44.2 1 40.8 44.2 2 35.9 38.8 3 40.8 43.2 Average 39.9, maximum peak 44.2 root@dell-diag-os:~# Debugging With traffic commands, use the -d option, which displays the BCM.0> shell. To check counters and if the link is up, use the ps and show c commands. nvramtool To read and write the NVRAM bits, use the nvramtool. The BIOS uses the NVRAM bits to control testing. The EDA tools also use the NVRAM bits. The NVRAM is an area, usually in a battery backed-up device such as an RTC chip. The NVRAM bits do not change across reboots or power cycles. These bits control how devices boot and how the system performs tests. The nvramtool controls both the BIOS and EDA for testing. The bits are not common across platforms and are defined in the configuration file. When using this tool, you must write the correct bits because the tool does not know the register details it is writing. The nvramtool displays the bit-level detail in the NVRAM registers, depending on how you define it in the configuration file. Dell EMC DAIG-OS tools 57

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Connect the SFP+ ports with an external Loopback cable.
•
PRBS MAC level test
./nputool –i –t 6
•
PRBS EXT level test “
./nputool –i –t 7
NPU temperature
Show the current NPU temperature.
•
nputool –i –s temp
•
nputool --init --show temp
root@dell-diag-os:~# nputool -i -s temp
DMA pool size: 16777216
PCI unit 0: Dev 0x8375, Rev 0x11, Chip BCM88375_B0, Driver BCM88375_B0
sysconf_probe successful
global_sal_config successful
***
1 BCM devices are detected
Diag NPU initialization over
NPU 0 Temperature
----------------------------
monitor
current
peak
----------------------------
0
41.8
44.2
1
41.3
44.7
2
36.4
38.8
3
39.8
43.2
----------------------------
Average
39.8, maximum peak 44.7
root@dell-diag-os:~# nputool -init -show
temp
DMA pool size: 16777216
PCI unit 0: Dev 0x8375, Rev 0x11, Chip BCM88375_B0, Driver BCM88375_B0
sysconf_probe successful
global_sal_config successful
***
1 BCM devices are detected
Diag NPU initialization over
NPU 0 Temperature
----------------------------
monitor
current
peak
----------------------------
0
42.3
44.2
1
40.8
44.2
2
35.9
38.8
3
40.8
43.2
----------------------------
Average
39.9, maximum peak 44.2
root@dell-diag-os:~#
Debugging
With
traffic
commands, use the
–d
option, which displays the
BCM.0>
shell. To check counters and if the link is up, use the
ps
and
show
c
commands.
nvramtool
To read and write the NVRAM bits, use the
nvramtool
. The BIOS uses the NVRAM bits to control testing. The EDA tools also use the
NVRAM bits.
The NVRAM is an area, usually in a battery backed-up device such as an RTC chip. The NVRAM bits do not change across reboots or
power cycles. These bits control how devices boot and how the system performs tests. The
nvramtool
controls both the BIOS and EDA
for testing. The bits are not common across platforms and are
defined
in the
configuration
file.
When using this tool, you must write the
correct bits because the tool does not know the register details it is writing. The
nvramtool
displays the bit-level detail in the NVRAM
registers, depending on how you
define
it in the
configuration
file.
Dell EMC DAIG-OS tools
57