Specifications

NPU tests ....................................... Passed
root@dell-diag-os:/opt/ngos/bin#
CPU Traffic with External Loopback
Tests the traffic 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: 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 ............... 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:/opt/ngos/bin#
root@dell-diag-os:/opt/ngos/bin# nputool --init --test 1 --traffic cpu_self
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 .............. 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 Traffic with Adjacent Loopback
Tests the traffic 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@amazon:/opt/ngos/bin# ./nputool -i -t 1 -T cpu_adj
DMA pool size: 67108864
Dell DiagOS Tools 64