The host can use this command to extend a session for open protocol interfaces, such as the WLAN interface, which require session management to meet PCI requirements.
The sequence of events is as follows:
The host may extend the session multiple times, until the device automatically resets to meet PCI’s 24 hour self-test requirement, by sending any command request using the same interface before the timeout occurs. Upon receiving the command, the device resets the session countdown timer to 30 minutes. This helps prevent the session from expiring while the host is actively using the device, including when the device is performing a transaction.
If the host wants to extend the session but does not need to send another command, it may follow these steps at any time during the session:
For the WLAN interface, if the device is configured to allow connections to more than one client at the same time with Maximum Client Connections - Property 1.2.2.1.1.A and more than one client is connected, then the following applies. There is always only a single session and it applies to all clients. There is not a separate session for each client. The session starts when the first client connects. Only one client needs to send a command on its connection to extend the session. The other clients do not need to send any commands. When the session expires, all clients will be disconnected.
Beginning of any wrappers, at minimum including Request Message
1F03 = Extend Session (Session Management Only) - Command 0x1F03
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Beginning of any wrappers, at minimum including Response Message
1F03 = Extend Session (Session Management Only) - Command 0x1F03
No parameters.
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