What Traceflow is for:
Traceflow operations require communication among vCenter, NSX Manager, the NSX Controller cluster and the netcpa user world agents on the hosts.
Log into the Web Client and Select the NSX Plugin
Select Traceflow on the left.
Select the source vm.
Select the vnic of that vm.
Now select the destination.
In this case, select Layer 3.
Add the IP address of the source vm.
Verify your selections and click on Trace.
Wait a few seconds...
In this case, notice the firewall dropped such traffic. The firewall demo is found on the previous post.
Same trace without the firewall rule preventing that type of traffic.