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3.1 Example 1: Update Synchronization to DSS

This example describes the scenario where a DSS is configured to synchronize with an USS, and the synchronization is triggered by using the server management tool or triggered on a schedule from the downstream server. This scenario supports the use case in Synchronize Server - Server Management Tool 2.5.3.5.

The following sequence diagram shows the sequence of messages that are exchanged between the DSS and USS to accomplish this scenario. All communication between the USS and the DSS is initiated by the DSS and occurs over the WSUSSS member protocol.

Sequence diagram for initial update synchronization to the DSS

Figure 7: Sequence diagram for initial update synchronization to the DSS

The phases in the message flow are described in the following sections.