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Channel control function

 

The channel control function provides facilities for you to define, monitor, and control channels. Commands are issued through panels, programs, or from a command line to the channel control function. The panel interface also displays channel status and channel definition data. We can use Programmable Command Formats or those WebSphere MQ commands (MQSC) and control commands that are detailed in Monitoring and controlling channels on distributed platforms.

The commands fall into the following groups:

• Channel administration

• Channel control

• Channel status monitoring

Channel administration commands deal with the definitions of the channels. They enable you to:

• Create a channel definition

• Copy a channel definition

• Alter a channel definition

• Delete a channel definition

Channel control commands manage the operation of the channels. They enable you to:

• Start a channel

• Stop a channel

• Re-synchronize with partner (in some implementations)

• Reset message sequence numbers

• Resolve an in-doubt batch of messages

• Ping; send a test communication across the channel

Channel monitoring displays the state of channels, for example:

• Current channel settings

• Whether the channel is active or inactive

• Whether the channel terminated in a synchronized state

• Preparing channels
  

• Channel states
  

• Checking that the other end of the channel is still available
  

• Adopting an MCA
  

• Stopping and quiescing channels
  

• Restarting stopped channels
  

• In-doubt channels
  

• Problem determination
  

 

Parent topic:

DQM implementation

ic11170_

 

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