func netifKey(key string, n int) string {
	return fmt.Sprintf("%s.%d.%s", cNetifKeyPrefix, n, key)
}
func netifKey(key string, n int) string {
	return fmt.Sprintf("%s.%d.%s", cNetifKeyPrefix, n, key)
}
func netifKey ( key string , n int ) string { return fmt . Sprintf ( " " , cNetifKeyPrefix , n , key ) }
// netifKey renders a specific network_interface key for a specific resource
// index.
netifKey renders a specific network_interface key for a specific resource index .