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KB17902 - Changing BAS high availablilty communication protocol from UDP to TCP
 
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Old 08-25-2009, 09:58 PM
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Default KB17902 - Changing BAS high availablilty communication protocol from UDP to TCP

KB17902 - Changing BAS high availablilty communication protocol from UDP to TCP


Environment

  • BlackBerry® Enterprise Server version 5.0



Overview

When installing multiple BlackBerry Administration Service instances for a highly available pool or cluster, the default communication discovery protocol used is Universal Dial Plan (UDP) through multicast.
For various reasons, UDP is not an optimal protocol to use and could negatively affect performance or behavior of the BlackBerry Administration Service instances in a highly available configuration. An example of this would be that UDP cannot traverse subnets. If you have multiple BlackBerry Administration Service instances on different subnets in a highly available configuration, they will not be aware of each other.
Complete the following steps to switch a BlackBerry Administration Service instance from using UDP Multicast to Transmission Control Protocol (TCP):
  1. On the computer that hosts a BlackBerry Administration Service instance, navigate to :\Program Files\Research In Motion\BlackBerry Enterprise Server\BAS\jboss\ejb\server\default\deploy.
  2. In a text editor, open cluster-service.xml.
  3. Follow the instructions in the file to configure TCP.
  4. Save and close the file.
  5. Navigate to :\Program Files\Research In Motion\BlackBerry Enterprise Server\BAS\server\default\deploy.
  6. In a text editor, open bas-object-versioning-cache-service.xml.
  7. Follow the instructions in the file to configure TCP.
  8. Save and close the file.
  9. In the Windows® Services window, restart the BlackBerry Enterprise Server services.
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