This example uses the Web User Interface (WUI) to create the pairs of connection
and session definitions that are required to connect the CICS® systems in the Starter Set CICSplex, EYUPLX01.
- Create the first ISC connection definition.
- From the WUI main menu, clickAdministration views-->Basic
CICS resource administration views-->CICS resource definitions-->Connection
definitions 5 to open the Connection definition tabular
view.
- If the current context is not EYUPLX01, specify EYUPLX01 in the Context field and click Refresh.
- Click Create and complete the Create panel as follows:
- Connection definition name
- C001
- Description
- ISC Connection
- Access method
- Vtam
- Protocol
- Appc
- Nature of connection
- Notapplic
- APPC terminal on single session APPC link
- No
- Data stream type
- User
- Record format
- U
- Queue limit
- No
- Maximum queue time
- No
- Autoconnect sessions for VTAM
- Yes
- Connection status
- Yes
- Level of attach-time security
- Local
- Bind time security
- No
- Use default user ID
- N_a
- Persistent session recovery
- Sysdefault
- Exchange lognames (XLN) action
- Keep
Other fields can remain blank.
- Click Yes to confirm the operation. The new ISC
connection is created and the Connection definition tabular
view is redisplayed.
- Create the associated session definition.
- From the WUI main menu, click Administration views-->CICS
resource definition views-->Session definitions to open the Session definition tabular view.
- Click the Create button and complete the Create
panel as follows:
- Session definition name
- S001
- Definition version
- 0
- Definition description
- ISC session
- Connection definition name
- C001
- Intercommunication link protocol
- Appc
- Maximum number of sessions in the group
- 4
- Receive buffer size
- 4096
- Session priority
- 0
- Autoconnect option
- YES
- Session inservice
- N_a
- Chain assembly required
- Yes
- Honor release requests
- No
- Honor disconnect requests
- No
- Recovery option
- Sysdefault
- XRF recovery notification option
- N_a
Other fields can remain blank.
- Click Yes to confirm. The ISC session definition
is created and the Session definition tabular view is redisplayed.
- Define the link between the relevant CICS systems.
- From the WUI main menu, click Administration views-->Main
administration views-->CICS system links to open the System link definition tabular view.
- Click the Create button and complete the Create
panel as follows:
- Primary CICS system name
- EYUMAS1A
- Secondary CICS system name
- EYUMAS1B
- Connection definition name
- C001
- Connection definition version
- 1
- Session definition name
- S001
- Session definition version
- 1
- Click Yes to confirm creation of the link. The ISC
link between EYUMAS1A and EYUMAS1B is created and the System
link definition view is redisplayed.
- Reuse the existing ISC link definition to define the links between other CICS systems.
- In the System link definition view, select the entry
for EYUMAS1A and click Create.
The Create System
Link panel is displayed, showing the values you entered when creating the
link between EYUMAS1A and EYUMAS1B.
- Update the Primary CICS system name field to create
an ISC link between EYUMAS4A and EYUMAS1B.
- Click Yes to confirm. The ISC link between EYUMAS4A
and EYUMAS1B is created and the System link definition view
is redisplayed.
Repeat this step to create ISC links between other CICS systems in the CICSplex.

You can also access this view from the Fully functional Business Application Services (BAS) administration views menu.
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