如何以编程方式使用C#/ VB.Net以MB为单位测量网站带宽(上传+下载)？

Question

希望大家都在这里好.

我写一个Windows服务在C#/ VB.Net,旨在测量带宽消耗对所有网站本地主机和存储上传的统计资料,下载等本地/远程数据库.

目标平台仅包括Windows Server 2003,2003 R2,2008和2008 R2.

我已经搜索了一下这个东西,发现了以下内容:

1. 使用Windows 2003中的SNMP mgmtapi.dll
2. 使用自定义网络驱动程序收集统计信息.

请指导最合适,最安全有效的方法/技术或一组此类技术,这些技术可用于衡量每个不同网站的带宽消耗.

还请分享这方面的任何代码.

问候

史蒂夫

Answer 1

我发现一个名为snmpsharpnet的程序集对于在.NET上运行SNMP非常有帮助.

根据我在本文中所写的解释,输入带宽使用率可以通过agiven接口计算:

"In"Bandwith用法%=(((ifInOctets(t2)-ifInOctets(t1))*8)*100)/(ifSpeed*(t2-t1))

这是一个示例代码.

using System;
using System.Collections.Generic;
using System.Text;

using SnmpSharpNet;

namespace Exemple2
{
  class Program
  {
    static void Main(string[] args)
    {
      /* Get an SNMP Object
       */
      SimpleSnmp snmpVerb = new SimpleSnmp("192.168.1.121", 161, "public");
      if (!snmpVerb.Valid)
      {
        Console.WriteLine("Seems that IP or comunauty is not cool");
        return;
      }


      /* Sample of simple Get usage on ifSpeed on interface 10
       * TODO : for sure you have to detect the right interface
       */
      Oid oidifSpeed = new Oid(".1.3.6.1.2.1.2.2.1.5.10");

      /* Getting ifSpeed
       */
      Dictionary<Oid, AsnType> snmpDataS = snmpVerb.Get(SnmpVersion.Ver2, new string[] { oidifSpeed.ToString() });
      if (snmpDataS != null)
        Console.WriteLine("Interface speed \"{0}\" : {1}", oidifSpeed.ToString(), snmpDataS[oidifSpeed].ToString());
      else
        Console.WriteLine("Not Glop!");

      /* Sample of simple Get usage on ifInOctets on interface 10
       * TODO : for sure you have to detect the right interface
       */
      Oid oidifInOctets = new Oid(".1.3.6.1.2.1.2.2.1.10.10");
      Dictionary<Oid, AsnType> snmpData1;

      /* Getting it for the first time
       */
      snmpData1 = snmpVerb.Get(SnmpVersion.Ver2, new string[] { oidifInOctets.ToString() });
      if (snmpData1 != null)
        Console.WriteLine("Number of In octets \"{0}\" : {1}", oidifInOctets.ToString(), snmpData1[oidifInOctets].ToString());
      else
        Console.WriteLine("Not Glop!");

      int missed = 0;
      while (true)
      {
        if (missed == 0)
        {
          /* When you detect a non refesh data, keep the last one
           */
          snmpData1 = snmpVerb.Get(SnmpVersion.Ver2, new string[] { oidifInOctets.ToString() });
          if (snmpData1 != null)
            Console.WriteLine("Number of In octets \"{0}\" : {1}", oidifInOctets.ToString(), snmpData1[oidifInOctets].ToString());
          else
            Console.WriteLine("Not Glop!");
        }

        /* Some Wait (less aproximative)
         */
        int duration = 5;
        System.Threading.Thread.Sleep(duration*1000); // duration seconds

        /* Getting it for the Second time
         */
        Dictionary<Oid, AsnType> snmpData2 = snmpVerb.Get(SnmpVersion.Ver2, new string[] { oidifInOctets.ToString() });
        if (snmpData2 != null)
          Console.WriteLine("Number of In octets \"{0}\" : {1}", oidifInOctets.ToString(), snmpData2[oidifInOctets].ToString());
        else
          Console.WriteLine("Not Glop!");

        Counter32 I1 = new Counter32();
        I1.Set(snmpData1[oidifInOctets]);
        Counter32 I2 = new Counter32();
        I2.Set(snmpData2[oidifInOctets]);
        Counter32 speed = new Counter32();
        speed.Set(snmpDataS[oidifSpeed]);

        if (I2.Value == I1.Value)
        {
          missed += 1;
          continue;
        }
        decimal bandWithUsage = (((decimal)(I2.Value - I1.Value) * 8) * 100) / (speed * duration * (1+missed));
        Console.WriteLine("BandWith usage : {0}%", bandWithUsage);
        missed = 0;
      }
    }
  }
}

这只是概念验证,现在您可能需要安装BackgroundWorker和计时器.

我希望它有所帮助.

最好的祝福

J.P