Window(윈도우) 2000 / XP / Server 기본 설정으로는 인터넷 TCP/IP소켓 (Internet TCP/IP Socket)을 5000개 이상 열 수 없습니다.
TCP/IP 소켓을 5000개 이상 다수 오픈하여 여는 방법을 알려드립니다.
출처 : MS 사이트
The information in this article applies to:
- Microsoft Windows NT Server versions 3.51, 4.0
- Microsoft Windows NT Server, Enterprise Edition version 4.0
Microsoft Windows NT Workstation versions 3.51, 4.0
IMPORTANT: This article contains information about editing the
registry. Before you edit the registry, make sure you understand how
to restore it if a problem occurs. For information about how to do
this, view the "Restoring the Registry" Help topic in Regedit.exe or
the "Restoring a Registry Key" Help topic in Regedt32.exe.
SYMPTOMS
When you attempt to set up TCP connections from ports above 5000,
the local computer responds with a WSAENOBUFS (10055) error, which
means:
An operation on a socket could not be
performed because the system lacked sufficient buffer space or
because a queue was full.
RESOLUTION
The default maximum number of ephemeral TCP ports for Microsoft
Windows NT is 5000. A new parameter has been added to Windows NT
3.51 Service Pack 5 and to Windows NT 4.0. To increase the maximum
number of ephemeral ports you must set the following registry
parameter:
IMPORTANT: This article contains information
about editing the registry. Before you edit the registry, make sure
you understand how to restore it if a problem occurs. For
information about how to do this, view the "Restoring the Registry"
Help topic in Regedit.exe or the "Restoring a Registry Key" Help
topic in Regedt32.exe.
WARNING: Using Registry Editor
incorrectly can cause serious problems that may require you to
reinstall your operating system. Microsoft cannot guarantee that
problems resulting from the incorrect use of Registry Editor can be
solved. Use Registry Editor at your own risk.
For
information about how to edit the registry, view the "Changing Keys
And Values" Help topic in Registry Editor (Regedit.exe) or the "Add
and Delete Information in the Registry" and "Edit Registry Data"
Help topics in Regedt32.exe. Note that you should back up the
registry before you edit it. If you are running Windows NT, you
should also update your Emergency Repair Disk (ERD).
- Start Registry Editor (Regedt32.exe).
- Locate the following key in the registry:
class=FIXEDTEXT>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
- On the Edit menu, click Add Value, and then add the following
registry value:
Value Name:
MaxUserPort Data Type: REG_DWORD Value: 65534 <for example>
Valid Range: 5000-65534 (decimal) Default: 0x1388
(5000 decimal)
Description: This parameter controls the
maximum port number used when an application requests any
available user port from the system. Normally, ephemeral (that is,
short-lived) ports are allocated between the values of 1024 and
5000 inclusive.
- Quit Registry Editor.
NOTE: An additional
registry parameter TCPTimedWaitDelay will determine how long a
closed port will wait until being reused. For additional
information, please see the following article in the Microsoft
Knowledge Base:
href="http://support.microsoft.com/support/kb/articles/Q149/5/32.ASP">Q149532
Windows NT Clients Run Out of Ports
MORE INFORMATION
For additional information, please see the following white paper
available on the Microsoft anonymous ftp server:
File Name: TCPIPIMP2.doc
Location :
href="ftp://ftp.microsoft.com/bussys/winnt/winnt-docs/papers/TCPIPIMP2.doc"
target=_top>ftp://ftp.microsoft.com/bussys/winnt/winnt-docs/papers/TCPIPIMP2.doc
Title
: "Microsoft Windows NT 3.5/3.51/4.0: TCP/IP Implementation
Details"
Keywords : kbnetwork
Issue type : kbprb
Technology :
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