title Setup flow R5 participant RMR participant E2Setup\nNotificationHandler as H participant Associaton\nManager as AM participant E2tInnstances\nManager as IM participant Rnib\nDataService as RNIB participant Routing\nManager as RM participant RanStateChange\nManager as SCM RMR->H: Setup request note over H: parsr request H->IM: GetE2tInstance H->RNIB: GetNodeb alt new RAN note over H: Build UNKNOWN_CONNECTION_STATUS nodeb\nSet Gnb functions H->RNIB: Save nodeb H->SCM: ChangeState(nodeb, CONNECTED) else existing RAN note over H: Set Gnb functions end H->AM: AssociateRan AM->RM: AssociateRanToE2TInstance note over AM: Success - CONNECTED\nFailure - DISCONNECTED AM->RNIB: UpdateNodeb AM->IM: AddRansToInstance note over H: Build response H->RMR: Setup response