Scenario: What happens after the BlackBerry Router stops responding

If the BlackBerry® Router stops responding, the primary BlackBerry® Enterprise Server responds differently if it can connect to another BlackBerry Router in the pool.

These responses assume that you have configured a BlackBerry Router pool, that the BlackBerry Enterprise Server and the BlackBerry® Infrastructure are running, and that the BlackBerry Router instance cannot restore itself:

Response of the primary BlackBerry Enterprise Server when it can connect to another BlackBerry Router

  1. The primary BlackBerry Enterprise Server loses its SRP connection.
  2. BlackBerry devices that connect to the BlackBerry Router using serial bypass (least cost routing) lose their connection.
  3. Wi-Fi® enabled BlackBerry devices that connect to the BlackBerry Router over the Wi-Fi network lose their connection.
  4. The primary BlackBerry Enterprise Server tries unsuccessfully to reopen the connection to the BlackBerry Router instance that it was using when the connection was lost.
  5. The primary BlackBerry Enterprise Server tries to connect to another BlackBerry Router instance in the pool.

    The primary BlackBerry Enterprise Server can connect to another BlackBerry Router and the connection to the BlackBerry Infrastructure is restored.

  6. The primary BlackBerry Enterprise Server resends service books to update the BlackBerry devices.

Response of the primary BlackBerry Enterprise Server when it cannot connect to another BlackBerry Router

  1. The primary BlackBerry Enterprise Server loses its SRP connection.
  2. BlackBerry devices that connect to the BlackBerry Router using serial bypass (least cost routing) lose their connection.
  3. Wi-Fi® enabled BlackBerry devices that connect to the BlackBerry Router over the Wi-Fi network lose their connection.
  4. The primary BlackBerry Enterprise Server tries unsuccessfully to reopen the connection to the BlackBerry Router instance that it was using when the connection was lost.
  5. The primary BlackBerry Enterprise Server tries to connect to another BlackBerry Router instance in the pool unsuccessfully.
  6. The primary BlackBerry Enterprise Server lowers its health score.

    The health score of the BlackBerry Enterprise Server falls below the failover threshold.

  7. The standby BlackBerry Enterprise Server checks its health score to determine if it is above the promotion threshold.
    One of the following events occurs:
    • If the health score of the standby BlackBerry Enterprise Server is above the promotion threshold, the standby BlackBerry Enterprise Server tries to open a connection to a BlackBerry Router instance and promote itself.
    • If the health score of the standby BlackBerry Enterprise Server is below the promotion threshold, the standby BlackBerry Enterprise Server cannot promote itself and you must resolve the issue.

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