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ServicePointManager.DefaultConnectionLimit Property

Gets or sets the maximum number of concurrent connections allowed by a ServicePoint object.

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

'Declaration
Public Shared Property DefaultConnectionLimit As Integer
'Usage
Dim value As Integer

value = ServicePointManager.DefaultConnectionLimit

ServicePointManager.DefaultConnectionLimit = value
/** @property */
public static int get_DefaultConnectionLimit ()

/** @property */
public static void set_DefaultConnectionLimit (int value)

public static function get DefaultConnectionLimit () : int

public static function set DefaultConnectionLimit (value : int)

Not applicable.

Property Value

The maximum number of concurrent connections allowed by a ServicePoint object. The default value is 2.

Exception typeCondition

ArgumentOutOfRangeException

DefaultConnectionLimit is less than or equal to 0.

The DefaultConnectionLimit property sets the default maximum number of concurrent connections that the ServicePointManager object assigns to the ConnectionLimit property when creating ServicePoint objects.

Changing the DefaultConnectionLimit property has no effect on existing ServicePoint objects; it affects only ServicePoint objects that are initialized after the change. If the value of this property has not been set either directly or through configuration, the value defaults to the constant DefaultPersistentConnectionLimit.

NoteNote:

Any changes to the DefaultConnectionLimit property affect both HTTP 1.0 and HTTP 1.1 connections. It is not possible to separately alter the connection limit for HTTP 1.0 and HTTP 1.1 protocols. When used in the server environment (ASP.NET) DefaultConnectionLimit defaults to higher number of connections, which is 10.

The following code example sets this property.

ServicePointManager.UseNagleAlgorithm = True
ServicePointManager.Expect100Continue = True
ServicePointManager.CheckCertificateRevocationList = True
ServicePointManager.DefaultConnectionLimit = _
    ServicePointManager.DefaultPersistentConnectionLimit

ServicePointManager.set_UseNagleAlgorithm(true);
ServicePointManager.set_Expect100Continue(true);
ServicePointManager.set_CheckCertificateRevocationList(true);
ServicePointManager.set_DefaultConnectionLimit(
    ServicePointManager.DefaultPersistentConnectionLimit);

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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