netstat -s: show network status(errors)

# show udp status
$ netstat -s --udp
Udp:
	  437.0k/s packets received
		0.0/s packets to unknown port received.
	  386.9k/s packet receive errors
		0.0/s packets sent
	RcvbufErrors:  123.8k/s
	SndbufErrors: 0
	InCsumErrors: 0