Microsoft KB Archive/160978

= Terminal Type Negotiation Fails w/RUMBA v3.2J TN3270 Emulator =

Article ID: 160978

Article Last Modified on 11/26/2003

-

APPLIES TO


 * Microsoft SNA Server 2.0
 * Microsoft SNA Server 2.1
 * Microsoft SNA Server 3.0
 * Microsoft SNA Server 2.11 Service Pack 1

-



This article was previously published under Q160978





SYMPTOMS
When you attempt to connect to SNA Server's TN3270/e service with the Wall Data RUMBA v3.2J TN3270 emulator, you may see the following errors on the emulator:

Terminal Type Negotiation failure

-and-

Communication error 501



CAUSE
The Wall Data RUMBA v3.2J TN3270 emulator sends a message that is out of the normal sequence, but still legal. This causes the TN3270E Server to renegotiate an option it had already negotiated.

The TN3720 negotiation would never complete if the emulator sent a "Won't TN3270E" command after it had sent a "Will TERMTYPE" command. This is because the TN3270 Server sends a "Do TERMTYPE" command in response to the "Won't TN3270E" command, even though the emulator had already sent the "Will TERMTYPE" command.



RESOLUTION
To resolve this problem, obtain the hotfix mentioned below. If the emulator sends "Will TERMTYPE" before the "Won't TN3270E," the TN3270/e Service doesn't send a "Do TERMTYPE."



STATUS
Microsoft has confirmed this to be a problem in SNA Server versions 2.0, 2.1, 2.11, and 2.11 Service Pack 1. This problem was corrected in the latest Microsoft SNA Server 2.11 U.S. Service Pack. For information on obtaining the 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 following is an example of a normal case:

TN3270/e Service Emulator
Do TN3270E

Won't TN3270E

Do TERMTYPE

Will TERMTYPE

The following is an example of a failing case with the Wall Data RUMBA v3.2J TN3270:

TN3270/e Service Emulator
Do TN3270E

Will TERMTYPE

Won't TN3270E

Do TERMTYPE

Additional query words: prodsna

Keywords: kbbug kbfix kbnetwork kb3rdparty KB160978

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.