Dell PowerSwitch S4112F-ON Open Networking Hardware Diagnostic Guide April 201 - Page 52

Write output root@dell-diag-os:~# memtool --write --addr=200 --val=0x50 Constraints You cannot perform memory tests while other tests that allocate and use memory within the region are performing. However, you can perform the Read tests concurrently with other processes. You cannot run multiple memory tests at the same time as they may collide within the memory spaces. Memory tests cannot test all the memory, and without cache flushes, memory tests may not get out of the caches. The SDI must ensure the memory accessed is accessing the physical memory. This check slows down the tests. Data flow The memtool is not part of the data path and does not participate in the data flow. nputool The nputool allows for configuring and testing the switch ASICs. The nputool tests the NPU in the system. The nputool verifies that ports are up and traffic between the ports is working either using the CPU-generated packet or using IXIA connected to port-1 and port-2 based on the configuration. Tests Tests are shown in the following sections. CLI options The nputool shows the available options with the nputool -h or nputool command. DellEmc Diag ---- NPU Tool version 1.0, x.xx.x.x-x build, 2017/05/23, Syntax: nputool -h, --help -i, --init -t, --test all id -s, --show counter temp := Show this help := Initialize NPU chip := Run All NPU tests := Run test based on test ID := Dump packet counters := Display NPU temperature -l, --lpbk [phy/mac/ext]:= Specify Loopback type for traffic test -T, --traffic [ixia_self,ixia_adj,cpu_self,cpu_adj] := Send IXIA or CPU traffic based on specified cfg self->timbercon lpbk, adj->fiber lpbk -I, --iteration [count]:= Execute repeatedly command by count 52 Dell EMC DAIG-OS tools