OSI/AS SCF Reference Manual

OSI/AS SCF Commands
OSI/AS SCF Reference Manual—424121-001
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Considerations for the ADD Command
VSN2
specifies whether the application using this profile can operate over a session
protocol version 2 connection. VSN1 and VSN2 can be ON at the same time, but
they cannot be OFF at the same time. Just one of them can be ON, however, if only
VSN2 is ON, do not specify a value for VSN1; the default for VSN1 automatically
becomes OFF.
The version is negotiated between the session entities at each end of the connection.
If an application using OSI/AS is the initiator, OSI/AS will propose either or both
versions depending on the settings of VSN1 and VSN2. If an application using
OSI/AS is the responder, OSI/AS will accept the connection if there is a match
between the proposed version (from the initiator) and the settings of VSN1 and
VSN2. If both versions are proposed and both VSN1 and VSN2 are ON, OSI/AS
will establish a protocol version 2 connection.
Considerations for the ADD Command
The considerations contain information about command use that should be read before
studying the command syntax in too much detail.
All Objects
•
The OSI/AS subsystem checks that attribute values are within valid ranges and does
a limited check of the value of one attribute against the value of other attributes. The
values that are actually used are determined at connection-establishment time. Use
the CHECK command or the STATUS SU command to see the attribute values used
during a connection.
•
In order to decide where to specify servers and profiles, the reader must understand
how the OSI manager process establishes connections. The following discussion
explains this process. After reading this discussion, read the considerations for the
ENTRY object to see where to specify servers and profiles.
•
When the OSI manager process receives a request from an application to establish a
connection with another application (attach and connect requests), several steps
happen before the connection takes place. The following discussion explains this
process.
Value: ON | OFF
Default: Defaults to the value of the VSN2 attribute in the ALTER
#L5 SERVICE command.