Hints and tips

You might need to do one or both of the following to tailor the UDP support in WebSphere MQ to suit your needs:

• Edit the qm.ini configuration file.

  A sample qm.ini configuration file is shipped in the mqw\qmgrs\ directory on WebSphere MQ for Windows. To use it, copy it to the subdirectory for the queue manager and edit it as required.

  The parameters and values in the sample configuration file are:

  
  

  UDP:
  ACKREQ_TIMEOUT = 5
  ACKREQ_RETRY = 60
  CONNECT_TIMEOUT = 5
  CONNECT_RETRY = 60
  ACCEPT_TIMEOUT = 5
  ACCEPT_RETRY = 60
  DROP_PACKETS = 0
  BUNCH_SIZE = 8
  PACKET_SIZE = 2048
  PSEUDO_ACK  = YES
  TRANSPORT:
  RETRY_EXIT = exitname
  

  See "User datagram protocol (UDP)" and "The Transport stanza" for descriptions of each of these attributes and how to code them.

• Keep messages to less than 4 MB.