IBM OS/390 User Manual

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9.5.2 Networking Definitions
You will have some other systems with an MQSeries product installed which are
connected to your VSE/ESA to allow MQSeries applications to communicate.
When you migrate your VSE/ESA to OS/390 you will have to re-establish
connection to those systems.
In this section we will discuss the networking considerations. There are also
MQSeries definitions which refer to remote MQSeries systems. These are
discussed in the next section.
We assume again, that we only talk about straight forward migration. In this
context this means that we only need to re-establish the SNA/LU6.2 connections.
MQSeries for MVS/ESA also supports TCP/IP as a communications protocol. But
since this is not supported for MQSeries for VSE/ESA, it will not be part of the
direct migration effort.
There are two parts to consider:
 1. establish SNA connection between OS/390 and the other systems running
MQSeries
 2. check and, if necessary, modify the SNA definitions in the remote systems to
connect to OS/390 rather than to VSE/ESA.
On the OS/390 side you will have to set up VTAM definitions equivalent to the
definitions you made in VSE/ESA. You may be able to modify and use the
VSE/ESA B-books containing the equivalent definitions.
What you need to do on the remote systems depends on what has changed. In
an ideal case: If you could reuse the same communications hardware, such as
communications controllers and so on, and define the same names for VTAM
resources under OS/390 which you used under VSE/ESA, you would not have to
change anything. More realistically, however, you will probably at least have to
change remote addresses (such as MAC addresses) and remote names (such as
partner LU names) on all the systems you want to connect to OS/390.
9.5.3 Defining MQSeries Object and Operating
Under VSE/ESA you will have defined the following MQSeries system elements:
 1. the queue manager
 2. message queues
 3. channels.
These elements and their properties are defined through CICS panels. No
command interface exists for MQSeries for VSE/ESA.
The definitions are stored in the MQSeries configuration file.
In MQSeries for MVS/ESA, there are six different types of object:
 1. queue managers
 2. queues
 3. channels
Note:
If you are using CICS for distributed queuing, channels are not
objects, and cannot be manipulated using MQSeries commands (see below).
Chapter 9. Telecommunications S u b s y s t e m s
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