This Recommendation specifies general arrangements for interworking between the Internet and Public Data Networks (PDNs) among which PSPDN and FRPDN are considered. Three possible cases are defined: the case where the IP-TE connected to the PDN accesses the Internet via the PDN (access case); the case where two Internet subnetworks are concatenated via the PDN (Concatenation case 1); the case where two PDNs are concatenated via the Internet (Concatenation case 2). The following arrangements are specified in this Recommendation: 1) reference configuration; 2) interface characteristics for UNI and NNI; 3) addressing mechanism; 4) functionality of the Access Unit (AU), InterWorking Function (IWF) and the Adapter.
ITU-T X.371 SPANISH-2001 Referenced Document
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ITU-T X.371 SPANISH-2001 history
2001ITU-T X.371 SPANISH-2001 General arrangements for interworking between Public Data Networks and the Internet