如果我在c#中发送0个有效载荷数据,udp数据包的大小是多少？

using System;
using System.Net;
using System.Net.Sockets;

class Program
{
    static void Main()
    {
        using (UdpClient client = new UdpClient())
        {
            client.Connect("127.0.0.1", 12345);
            byte[] emptyPayload = new byte[0];
            client.Send(emptyPayload, 0);
        }
    }
}