Specifications

CPU trac with external loopback
Tests the trac sent from the CPU internally generated packet to the front-end ports that are connected with external Loopback optics.
Connect all the ports with QSFP28 Loopback optics.
• nputool -i -t 1 -T cpu_self
• nputool --init --test 1 --traffic cpu_self
root@dell-diag-os:/opt/ngos/bin# nputool -i -t 1 -T cpu_self
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
Test link_status_test for NPU 0 ............. SKIPPED <<<---
Test snake_traffic_test for NPU 0 ........... Passed
Test prbs_mac_test for NPU 0 ................ SKIPPED <<<---
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:~# nputool --init --test 1 --traffic cpu_self
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
Test link_status_test for NPU 0 ............. SKIPPED <<<---
Test snake_traffic_test for NPU 0 ........... Passed
Test prbs_mac_test for NPU 0 ................ SKIPPED <<<---
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
CPU trac with adjacent loopback
Tests the trac sent from the CPU internally generated packet to the front-end ports which are connected with direct attach cables
(DACs) or optics with cables connected top-to-bottom.
Connect all the ports with DACs or 40G/100G optics with cables.
• nputool -i -t 1 -T cpu_adj
• nputool --init --test 1 --traffic cpu_adj
root@dell-diag-os:~# nputool -i -t 1 -T cpu_adj
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
Test link_status_test for NPU 0 ............ SKIPPED <<<---
Test snake_traffic_test for NPU 0 ............ Passed
Test prbs_mac_test for NPU 0 ............ SKIPPED <<<---
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:~#
root@dell-diag-os:~# nputool -init -test 1 -traffic cpu_adj
DMA pool size: 16777216
52
Dell EMC DiagOS tools