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Saturday, August 25, 2012

Transport Level Sessions

In WCF since the client sends a msg to the service and never invokes the instance direclty, the direct association of the object  with the client is not possible, so we use the transport session, whcih ensures that all athe messages coming from a particular client are sent to the same trasport channel on the host.

It is as if the cliient and the channel maintain a logical session at the transport level.
The transport session is an optional and is unrelated to the application level and is an aspect of the binding configuration.

Transport session is one of the key fundamental concepts of WCF affecting reliabilty, instance mgmt, error mgmt, synchronization, transactions and security.

It relies on WCF's abiltiy to identify the client and correlate all its msgs to a particular channel.

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