tmnxDAGrpDCIdleTimeout 1.3.6.1.4.1.6527.3.1.2.82.1.4.1.13

The value of tmnxDAGrpDCIdleTimeout specifies the max time for any outstanding requests to a delivery-controller to be replied. If a reply is not received within this time after the request was sent, the DA closes the TCP connection.