[Ie tips] HTTP connections in IE8

International standard RFC 2616 (http://www.w3.org/Protocols/rfc2616/rfc2616.html) specifies that the number of concurrent HTTP connections that clients initiate to the server should be limited. For an http1.1 connection, no more than two concurrent connections are allowed.

 

"Clients that use persistent connections shocould limit the number of simultaneous connections that they maintain to a given server. A single-user client shocould not maintain more than 2 connections with any server or proxy ."

 

In IE 7 and earlier versions, ie strictly abides by this restriction,The maximum number of HTTP 1.0 concurrent connections is 4, and the maximum number of HTTP 1.1 concurrent connections is 2.. At the same time, there are already many technologies on the Internet for the number of custom connections allowed by IE users (by modifying the registry ).ArticleThis method is used to accelerate ie browsing.

 

Set the connection upper limit registry:

[Hkey_curr1__user/software/Microsoft/Windows/CurrentVersion/Internet Settings]

 

DWORD: maxconnectionsperserver (HTTP 1.1 connection limit)

DWORD: maxconnectionsper%0server (HTTP 1.0 connection limit)

 

 

However, RFC 2616 has not been updated for ten years. In recent years, server hardware has developed rapidly, and the limit on the number of connections seems outdated. As a result, various browser vendors began to adjust the number. IE8 is also updated. IE8,The maximum number of concurrent connections for HTTP 1.0 is 6, and the maximum number of concurrent connections for HTTP 1.1 is 6..However, if you use dial-up Internet access, IE8 still uses the old connection restriction.

 

In addition, the Registry settings have also changed. In IE8, the connection upper limit settings are changed:

 

(HTTP 1.1 connection ceiling)

[HKEY_LOCAL_MACHINE/software/Microsoft/Internet Explorer/main/featurecontrol/feature_maxconnectionsperserver]

DWORD: iexplore.exe

 

(HTTP 1.0 connection ceiling)

[HKEY_LOCAL_MACHINE/software/Microsoft/Internet Explorer/main/featurecontrol/feature_maxconnectionsper1_0server]

 

DWORD: iexplore.exe