3.20
MS-DOS
kb3rdparty kbfile kbbug3.00 kbbug3.20 kbfix
The information in this article applies to:
- Microsoft Mail Gateway to X4.00, version 3.2
SYMPTOMS
Version 3.2 of Microsoft Mail Gateway to X.400 may disconnect an existing
session under heavy use conditions or it may be unable to establish
outgoing or incoming connections, and it may display one or all of the
following errors:
ERROR 3 (RTS): RTS open refused (Session limit exceeded)
DEBUG (T4_recv): Connection xx: tp_wait() failed:15
DEBUG (T4_send): Connection xx: tp_accept() failed:1
CAUSE
If the gateway is under heavy use, two errors may occur as it counts the
number of active connections:
- This count is incorrectly decremented with every occurrence of a
connection request on the listening connection. This is incorrect; the
listening connection is not an active connection. Eventually, the count
will decrement to zero (0), and if a connection is active, it will be
closed.
- Every attempted connection used additional memory in RAM. The previous
connection attempt was not being cleared from memory. The lack of memory
results in the "tp-wait" errors. The "tp_accept" errors tell the sending
MTA that the gateway cannot accept incoming connections at that time.
For additional information, please see the following article in the
Microsoft Knowledge Base:
ARTICLE-ID: Q119303
TITLE : X400: Err Msg: ERROR 3 (RTS): RTS Open Refused...
STATUS
Microsoft has confirmed this to be a problem in versions 3.0 and 3.2 of
Microsoft Mail Gateway to X.400. This problem is corrected in X400GATE.EXE
version 3.2.12. If you do not have version 3.2.12 (or later), you can
download X400GA.EXE, a self-extracting file, on the following services:
- Microsoft's World Wide Web Site on the Internet
On the www.microsoft.com home page, click the Support icon.
Click Knowledge Base, and select the product.
Enter kbfile X400GA.EXE (size: 203636 bytes)
, and click GO!
Open the article, and click the button to download the file.
- Internet (anonymous FTP)
ftp ftp.microsoft.com
Change to the Softlib/Mslfiles folder.
Get X400GA.EXE (size: 203636 bytes)
- The Microsoft Network
On the Edit menu, click Go To, and then click Other Location.
Type "mssupport" (without the quotation marks).
Double-click the MS Software Library icon.
Find the appropriate product area.
Locate and Download X400GA.EXE.
- Microsoft Download Service (MSDL)
Dial (206) 936-6735 to connect to MSDL
Download X400GA.EXE (size: 203636 bytes)
For additional information about downloading, please see the following
article in the Microsoft Knowledge Base:
ARTICLE-ID: Q119591
TITLE : How to Obtain Microsoft Support Files from Online
Services
MORE INFORMATION
The updated X400GATE.EXE file includes the following modifications for the
causes listed above:
- The count is no longer decremented unless an active connection is
released.
- The TP4 stack is deactivated and reactivated with each connection
attempt, freeing up memory.
There is also a workaround for the memory issue: the TP4 stack can be
allocated more memory by adjusting the [PLUTO] section of the PROTOCOL.INI
file, as follows:
[PLUTO]
memory=8192
The default value is 512 bytes/connection. For more information about the
memory parameter, see Chapter 2 of the TP4/CLNP "Administrator's
Reference."