Specifications

Connect ports with Loopback cables and run the PRBS MAC and EXT Loopback tests.
• PRBS MAC level test nputool –i –t 2 or nputool --init --test 2
• PRBS EXT level test nputool –i –t 3 or nputool --init --test 3
For example:
root@dell-diag-os:/opt/ngos/bin# nputool -i -t 2
DMA pool size: 67108864
PCI unit 0: Dev 0xb960, Rev 0x01, Chip BCM56960_A0, Driver BCM56960_A0
sysconf_probe successful
global_sal_config successful
*** 1 BCM devices are detected
Current mode is now ESW
Diag NPU initialization over
Test link_status_test for NPU 0 ................ SKIPPED <<<---
Test snake_traffic_test for NPU 0 .............. SKIPPED <<<---
Test prbs_mac_test for NPU 0 ................... Passed
Test prbs_ext_test for NPU 0 ................... SKIPPED <<<---
Test uplink_link_status_test for NPU 0 ......... SKIPPED <<<---
Test uplink_snake_traffic_test for NPU 0 ....... SKIPPED <<<---
Test uplink_prbs_mac_test for NPU 0 ............ SKIPPED <<<---
Test uplink_prbs_ext_test for NPU 0 ............ SKIPPED <<<---
NPU tests ....................................... Passed
root@dell-diag-os:/opt/ngos/bin#
root@dell-diag-os:/opt/ngos/bin# nputool -i -t 3
DMA pool size: 67108864
PCI unit 0: Dev 0xb960, Rev 0x01, Chip BCM56960_A0, Driver BCM56960_A0
sysconf_probe successful
global_sal_config successful
*** 1 BCM devices are detected
Current mode is now ESW
Diag NPU initialization over
Test link_status_test for NPU 0 ................ SKIPPED <<<---
Test snake_traffic_test for NPU 0 .............. SKIPPED <<<---
Test prbs_mac_test for NPU 0 ................... SKIPPED <<<---
Test prbs_ext_test for NPU 0 ................... Passed
Test uplink_link_status_test for NPU 0 ......... SKIPPED <<<---
Test uplink_snake_traffic_test for NPU 0 ....... SKIPPED <<<---
Test uplink_prbs_mac_test for NPU 0 ............ SKIPPED <<<---
Test uplink_prbs_ext_test for NPU 0 ............ SKIPPED <<<---
NPU tests ...................................... Passed
root@dell-diag-os:/opt/ngos/bin#
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:/opt/ngos/bin# nputool -i -s temp
DMA pool size: 67108864
Dell DiagOS Tools 67