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Socket.ReceiveBufferSize Property

Gets or sets a value that specifies the size of the receive buffer of the Socket.

Namespace:  System.Net.Sockets
Assembly:  System (in System.dll)

public int ReceiveBufferSize { get; set; }

Property Value

Type: System.Int32
An Int32 that contains the size, in bytes, of the receive buffer. The default is 8192.


An error occurred when attempting to access the socket.


The Socket has been closed.


The value specified for a set operation is less than 0.

A larger buffer size potentially reduces the number of empty acknowledgements (TCP packets with no data portion), but might also delay the recognition of connection difficulties. Consider increasing the buffer size if you are transferring large files, or you are using a high bandwidth, high latency connection (such as a satellite broadband provider.)

The following code example demonstrates the use of the ReceiveBufferSize property.

		static void ConfigureTcpSocket(Socket tcpSocket)
			// Don't allow another socket to bind to this port.
			tcpSocket.ExclusiveAddressUse = true;

			// The socket will linger for 10 seconds after  
                        // Socket.Close is called.
			tcpSocket.LingerState = new LingerOption (true, 10);

			// Disable the Nagle Algorithm for this tcp socket.
			tcpSocket.NoDelay = true;

			// Set the receive buffer size to 8k
			tcpSocket.ReceiveBufferSize = 8192;

			// Set the timeout for synchronous receive methods to  
			// 1 second (1000 milliseconds.)
			tcpSocket.ReceiveTimeout = 1000;

			// Set the send buffer size to 8k.
			tcpSocket.SendBufferSize = 8192;

			// Set the timeout for synchronous send methods 
			// to 1 second (1000 milliseconds.)			
			tcpSocket.SendTimeout = 1000;

			// Set the Time To Live (TTL) to 42 router hops.
			tcpSocket.Ttl = 42;

			Console.WriteLine("Tcp Socket configured:");

			Console.WriteLine("  ExclusiveAddressUse {0}", 

			Console.WriteLine("  LingerState {0}, {1}", 

			Console.WriteLine("  NoDelay {0}", 

			Console.WriteLine("  ReceiveBufferSize {0}", 

			Console.WriteLine("  ReceiveTimeout {0}", 

			Console.WriteLine("  SendBufferSize {0}", 

			Console.WriteLine("  SendTimeout {0}", 

			Console.WriteLine("  Ttl {0}", 

                        Console.WriteLine("  IsBound {0}", 


Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0