Useful ESXi commands (Network related info)
Find VM port number and switch name:
net-stats -l
Display packet info on a specific VM:
vsish -e get /net/portsets/SwitchNameHere/ports/VmPortNumberHere/vmxnet3/rxSummary
Packet health (Dropped, MTU, tx/rx, etc)
vsish -e get /net/portsets/SwitchNameHere/ports/VmPortNumberHere/clientStats
Ring buffer sizes:
vsish -e get /net/portsets/SwitchNameHere/ports/VmPortNumberHere/vmxnet3/rxqueues/0/status
Number of RSS queues leveraged by a VM that is using RSS:
vsish -e ls /net/portsets/SwitchNameHere/ports/VmPortNumberHere/vmxnet3/rxqueues/