3.1.5 Message Processing Events and Sequencing Rules

The DeviceId field is valid if all of the following conditions are met:

• The DeviceId field has been specified in a packet that contains the Device Announce Header (section 2.2.1.3).

• No Client Drive Device List Remove (section 2.2.3.2) has been sent for this DeviceId.

The FileId field is valid if all of the following conditions are met:

• A Device Create Response has been issued with that FileId.

• No Device Close Response has been issued with that ID.

The CompletionId field is valid if all of the following conditions are met:

• The server has sent a packet that has a Device I/O Request (section 2.2.1.4) in its header with that ID.

• No packet that has a header Device I/O Response (section 2.2.1.5) has been sent by the client with that ID.