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title: Life Cycle of a Durable Client
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This section discusses the high-level operation of a durable client through initial startup, disconnection, and reconnection.
- **[Initial Operation](initial-operation.html)**
The initial startup of a durable client is similar to the startup of any other client, except that it specifically calls the `Cache.readyForEvents` method when all regions and listeners on the client are ready to process messages from the server.
- **[Disconnection](disconnection.html)**
While the client and servers are disconnected, their operation varies depending on the circumstances.
- **[Reconnection](reconnection.html)**
During initialization, operations on the client cache can come from multiple sources.
- **[Durable Message Replay](durable-message-replay.html)**
When the primary server receives the cache ready message, the servers and client execute a procedure to update the queue and replay the events from the stored messages.
- **[Application Operations During Interest Registration](app-ops-during-int-reg.html)**
As soon as the client creates its regions, the application hosting the client can start cache operations, even while the client is still receiving its interest registration responses.