Timer Expiry Handling Call Flow
This section describes the Timer Expiry Handling call flow.

Step |
Description |
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1, 2, 3 |
The initial attach and Session Stale Timer updates are sent to CDL and the timer starts. The sequence is as follows:
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4, 5 |
The Timer expires on CDL pod, and the timer sends notification to cnSGW-C. The sequence is as follows:
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6–13 |
The session cleanup is activated, when the Session Stale Timer expires, and the timer reset isn’t required. The sequence is as follows:
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