N1N2 Retransmission
Once N1N2 retransmission timer expires, following action is taken:
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SMF increments the N1N2 retry counter
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SMF sends N11N1N2 Transfer Request message towards AMF and restarts the N1N2 retransmission timer. SMF waits for N1N2 Transfer Response.
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If N1N2 Transfer Success is received, SMF waits for SM Context Update Request with N1 update. The N1 update includes resource modify success/resource modify reject information.
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Once the N1N2 retry counter reaches the configured maximum number, the procedure is aborted.