tag	line	file	source code
UdpOutDatagrams	103	include/net/snmp.h	unsigned long  UdpOutDatagrams;
UdpOutDatagrams	257	net/ipv4/proc.c	udp_statistics.UdpInErrors, udp_statistics.UdpOutDatagrams);
UdpOutDatagrams	333	net/ipv4/udp.c	udp_statistics.UdpOutDatagrams++;