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ITU-T Recommendation J.125 was Annex O to ITU-T Recommendation J.112 Annex B. Since it is also applicable to MAC layer privacy services for ITU-T Recommendation J.122, it became a stand-alone Recommendation (J.125). This Recommendation, often referred to as Baseline Privacy Interface Plus or BPI+, has the following two goals: • provide cable modem users with data privacy across the cable network; and • provide cable operators with service protection; i.e., prevent unauthorized users from gaining access to the network's RF MAC services. BPI+ provides a level of data privacy across the shared medium cable network equal to or better than that provided by dedicated line network access services (analog modems or digital subscriber lines). |