Setup Guide

Test uplink_prbs_mac_test for NPU 0 ............ SKIPPED <<<---
Test uplink_prbs_ext_test for NPU 0 ........... SKIPPED <<<---
NPU tests ...................................... Passed
PRBS for uplink ports
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.
50
Dell EMC DIAG-OS tools