Create MQ Channels between Queue Manager on zCX and z/OS A channel is a logical communication link. In IBM MQ, there are two kinds of Channels: GLYPH<SM590000> Message Channel GLYPH<SM590000> MQI Channel We create Message channels between the Queue Managers. A message channel connects  two queue managers. These channels are unidirectional because messages are only sent in  one direction along the channel. There are subtypes of message channel, with the different  types distinguished by these factors: GLYPH<SM590000> Are they used for receiving or sending messages? GLYPH<SM590000> Do they initiate the communication to the partner queue manager? GLYPH<SM590000> Are they used within a cluster? A channel definition on one queue manager must be matched with a channel definition of the  same name with an appropriate subtype on the partner queue manager. We define a SENDER channel on one queue manager with an identically named RECEIVER  channel on a second queue manager. We also create the appropriate Transmission Queues  for the channels. In this document, we do not focus on the MQ commands for creating the  channels, because we assume that the reader knows how to create those.  GLYPH<SM590000> Create Message Channels on QMZCX Table 8-2 lists the channels that must be created on Queue Manager QMZCX. Table 8-2 Sender-Receiver on QMZCX Table 8-3 Sender-Receiver on MQZ1 Channel Name Type Conn Name * Transmission Queue ** QMZCX.MQZ1 Sender wtsc74.pbm.ihost.com(1414) MQZ1 MQZ1.QMZCX Receiver NA NA * Conn Name:  wtsc74.pbm.ihost.com is the z/OS LPAR where Queue Manager MQZ1 is running  and listening on port 1414. ** Transmission Queue:  A new local queue MQZ1 was also created with the usage type of XMITQ. Channel Name Type Conn Name * Transmission Queue ** QMZCX.MQZ1 Receiver NA NA MQZ1.QMZCX Sender 129.40.23.76(1415) QMZCX * Conn Name:  129.40.23.76 is the IP address of the provisioned zCX instance. 1415 is the port that  the queue manager QMZCX is listening inside the container. ** Transmission Queue:  A new local queue QMZCX was also created on Queue Manager MQZ1 with  the usage type of XMITQ. GLYPH<SM590000> Create Message Channels on z/OS Queue Manager MQZ1 Table 8-3 lists the channels that must be created on Queue Manager MQZ1 on z/OS. Typically, channels are configured to start automatically when messages are available on the  associated transmission queue. We start the SENDER channels manually to make sure that  Start SENDER channels, including debugging protocols This completes creation of the message channels for Queue Manager communication. 196  Getting started with z/OS Container Extensions