43 lines
1.7 KiB
Plaintext
43 lines
1.7 KiB
Plaintext
AST RESEARCH TECHNICAL BULLETIN TB-0207A 09/18/86
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SNA/BSC STAND ALONE / GATEWAY CLUSTER
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The purpose of this Technical Bulletin is to avoid difficulties
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when using AST SNA and AST BSC stand alone and their Cluster or
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Gateway counterparts.
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When using SNA and BSC and their Cluster or Gateway counterparts,
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the user may experience the following symptom: the Gateway or
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Cluster has only one terminal or LU active. The intended sign on
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screen does appear on this terminal. However, the other
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terminals are not active. They do not have the intended sign on
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screen.
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This symptom will occur under the following conditions:
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1) The user has dialed into the host with the SNA
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or BSC stand alone package.
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2) The user then tries to dial into the same line
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using the Cluster or Gateway with more than
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one terminal (or LU) defined in the AST
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configuration file.
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The following is an explanation of why this symptom occurs. When
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the user of the SNA or BSC stand alone package dials into the
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mainframe, the mainframe activates the terminal (LU). The
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mainframe then polls for all other terminals (LUs) on the
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controller. These LUs are not defined in the AST-SNA or BSC
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stand alone packages. The mainframe receives an indication from
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AST SNA or BSC that these LUs are not defined, and therefore
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deactivates them.
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To solve this problem, the mainframe systems operator needs to
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activate all LUs on the controller before the Cluster or Gateway
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users call in.
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This symptom and explanation applies to all other brands of 3270
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terminals and emulators under the conditions described above.
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