GTP-C Restoration on PGW-C/SMF
PGW-C/SMF can detect that there is a change in recovery value of SGW. PGW-C/SMF can detect this value from the following messages:
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Create Session Request
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Modify Bearer Request
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Create Bearer Response
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Echo Response
If PGW-C/SMF detects that there is a change in recovery value, then it initiates the cleanup of all the PDN connections associated with the SGW.
