High-performance asynchronous Socket server (UDP)

The source code of the UDP server designed in asynchronous mode is as follows:

 

   1 using System;
  2  using System.Net;
  3  using System.Net.Sockets;
  4 using System.ServiceProcess;
  5 using System.Threading;
  6 
  7 namespace TestUdpServer
  8 {
  9     // this class encapsulates a single packet that
 10     // is either sent or received by a UDP socket
 11     public class UDPPacketBuffer
 12     {
 13         // size of the buffer
 14         public const int BUFFER_SIZE = 4096;
 15 
 16         // the buffer itself
 17         public byte[] Data;
 18 
 19         // length of data to transmit
 20         public int DataLength;
 21 
 22         // the (IP)Endpoint of the remote host
 23         public EndPoint RemoteEndPoint;
 24 
 25         public UDPPacketBuffer()
 26         {
 27             this.Data = new byte[BUFFER_SIZE];
 28 
 29             // this will be filled in by the call to udpSocket.BeginReceiveFrom
 30             RemoteEndPoint = (EndPoint)new IPEndPoint(IPAddress.Any, 0);
 31         }
 32 
 33         public UDPPacketBuffer(byte[] data, EndPoint remoteEndPoint)
 34         {
 35             this.Data = data;
 36             this.DataLength = data.Length;
 37             this.RemoteEndPoint = remoteEndPoint;
 38         }
 39     }
 40 
 41     public abstract class UDPServer
 42     {