For each CICS® connection
definition, define one or more session definitions to specify the SNA mode
groups to be used within that connection.
- Connection
- Set to the name of the associated connection definition.
- MOdename
- Specify the mode group as defined in a VTAM® LOGMODE.
The modename must be unique among the sessions definitions that relate to
one connection definition.
- Protocol
- Set to APPC.
- MAximum
- Specify the maximum number of sessions that are to be supported. The first
value is the maximum number of sessions that can be supported. The second
value specifies the number of contention-winner sessions (CICS-owned
sessions). These values are negotiated during change number of sessions (CNOS)
flows, when the sessions are actually bound; the negotiated values depend
on the settings specified in the partner SNA node.
Set the first value
to be at least as big as the MAXREQUESTS parameter in the ctg.ini file,
to prevent a bottleneck to throughput. Set the second value to 001,
to ensure that START requests are shipped serially from the server to the
client.
- Autoconnect
- Set to determine whether the sessions for this mode group will be bound
when the connection is installed. Set it to one of the following:
- Yes to bind only contention-winner sessions
- All to bind all sessions