Reliable Messaging

See Also 

The Reliable Messaging section of the Web Service Attributes editor is part of the reliability features provided by the Web Services Interoperability Technology (WSIT).

When you expand the Reliable Messaging section, you find the following subsections:

• Reliable Messaging. Specifies whether reliable messaging is enabled.
• Ordered Delivery. Specifies whether the Reliable Messaging protocol ensures that the application messages for a given message sequence are delivered to the endpoint application in the order indicated by the message numbers.
  Note: This option increases the time to process application message sequences and may result in the degradation of Web service performance.
• Flow Control. Specifies whether the Flow Control feature is enabled.
• Max Buffer Size. If Flow control is enabled, specifies the number of messages for a sequence that will be buffered. The default setting is 32.
• Inactivity Timeout. Specifies the time interval beyond which either source or destination may terminate any message sequence due to inactivity. The default setting is 600,000 milliseconds (10 minutes). A Web service endpoint will always terminate a sequence whose inactivity timeout has expired. To keep the sequence active, an inactive client will always send a stand- alone message with an AckRequested header to act as a heartbeat as the end Inactivity timeout interval approaches.