Article ID: 186054
Article Last Modified on 3/18/2005
APPLIES TO
- Microsoft SNA Server 2.1
- Microsoft SNA Server 3.0
- Microsoft SNA Server 2.11 Service Pack 1
- Microsoft SNA Server 2.11 Service Pack 2
- Microsoft SNA Server 3.0 Service Pack 4
- Microsoft SNA Server 4.0
- Microsoft SNA Server 3.0 Service Pack 2
- Microsoft SNA Server 3.0 Service Pack 3
- Microsoft SNA Server 4.0
- Microsoft SNA Server 4.0 Service Pack 1
This article was previously published under Q186054
SYMPTOMS
The SLI_SEND and SLI_RECEIVE verbs can only send or receive a maximum of 65 kilobytes (KB) of data each time they are issued by a SLI application.
The lua_data_length parameter is used to specify the amount of data to be sent in a SLI_SEND verb. The SLI_RECEIVE verb uses the lua_max_length parameter to specify the length of the buffer that is to be used to receive data.
CAUSE
The 65-KB data length per SLI_SEND/SLI_RECEIVE is by design. The lua_data_length and lua_max_length parameters are defined as Unsigned Integers (unsigned int), which limits their maximum values to 2^16 bytes (approximately 65 KB).
RESOLUTION
Microsoft has confirmed this to be a problem in SNA Server versions 2.1, 2.11, 2.11 SP1, 2.11 SP2, 3.0, 3.0 SP1, 3.0 SP2, 3.0 SP3, 4.0, and 4.0 SP1.
SNA Server 3.0
A supported fix that corrects this problem is now available from Microsoft, but has not been fully regression tested and should be applied only to systems experiencing this specific problem. To resolve this problem immediately, contact Microsoft Technical Support to obtain the fix. If you are not severely impacted by this specific problem, Microsoft recommends that you wait for the next SNA Server 3.0 service pack that contains this fix.
For SNA Server 3.0:
File Name Date Time
----------------------------------
winsli32.dll 6/16/98 8:32AM
snatrc.dll 6/16/98 8:29AM
snatrccn.dll 6/16/98 8:29AM
snatrcsn.dll 6/16/98 8:29AM
SNA Server 4.0
This problem was corrected in the latest Microsoft SNA Server version 4.0 U.S. Service Pack. For information on obtaining this Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):
S E R V P A C K
MORE INFORMATION
The SLI API has been extended to include the following new verbs:
- SLI_SEND_EX
- SLI_RECEIVE_EX
These new verbs can be used instead of SLI_SEND and SLI_RECEIVE in those SLI applications that require sending or receiving more than 65 KB of data with each send or receive issued. These new SLI verbs include the following new parameters:
SLI_SEND_EX: lua_data_length_ex
SLI_RECEIVE_EX: lua_max_length_ex
Each of these new parameters is defined as Unsigned Long Integers (unsigned long), which allows their maximum values to be 2^32 bytes (approximately 4 GB).
These SLI API updates are available after applying the fix or service pack mentioned previously.
Please refer to the SNA Server LUA Programmer's Guide for more details on both the RUI and SLI APIs included with SNA Server.
Additional query words: snalua snaprog
Keywords: kbbug kbfix KB186054
