C# 测试网络速度例子

using system.net.networkinformation;  
namespace pingexample
{
    public partial class form1 : form
    {
        public form1()
        {
            initializecomponent();
        }

        private void btn_startping_click(object sender, eventargs e)
        {
            this.lst_pingresult.items.clear();
            //远程服务器ip
            string ipstr = txt_ipaddress.text.tostring().trim();
            //构造ping实例
            ping pingsender = new ping();
            //ping 选项设置
            pingoptions options = new pingoptions();
            options.dontfragment = true;
            //测试数据
            string data = "test data abcabc";
            byte[] buffer = encoding.ascii.getbytes(data);
            //设置超时时间
            int timeout = 120;
            //调用同步 send 方法发送数据,将返回结果保存至pingreply实例
            pingreply reply = pingsender.send(ipstr, timeout, buffer, options);
            if (reply.status == ipstatus.success)
            {
                lst_pingresult.items.add("答复的主机地址：" + reply.address.tostring());
                lst_pingresult.items.add("往返时间：" + reply.roundtriptime);
                lst_pingresult.items.add("生存时间（ttl）：" + reply.options.ttl);
                lst_pingresult.items.add("是否控制数据包的分段：" + reply.options.dontfragment);
                lst_pingresult.items.add("缓冲区大小：" + reply.buffer.length);
            }
            else
                lst_pingresult.items.add(reply.status.tostring());
        }
    }
}
https://www.cnblogs.com/daming1233/p/6598028.html