If you use a distributed routing program to balance method requests for
enterprise beans and CORBA stateless objects across the AORs of your logical
server, customize your routing program to use the DYRLEVEL parameter. DYRLEVEL
is a migration aid. It contains the level of CICS required in the target AOR
to successfully process the routed request. (Note that this is the specific—not the minimum—level of
CICS required to process the request successfully.) In a mixed-level logical
server, when your routing program is invoked for route selection (or route
selection error), it can use the value of DYRLEVEL to determine whether to
route the request to a back-level or CICS TS for z/OS, Version 3.1 AOR.
For details of how to use DYRLEVEL, and definitive information about writing
a distributed routing program, see the CICS Customization Guide.
Install your customized program on all the
regions (both listeners and AORs) of the EJB server.
If you use CICSPlex SM to
workload-balance method requests you can skip this step. The CICSPlex SM routing
program supplied with CICS Transaction Server for z/OS, Version 3 Release 1 checks the DYRLEVEL field and routes
requests accordingly.