CONTENTS

Annex A - Digital Video Broadcasting: DVB interaction channel for  Cable TV (CATV) distribution systems
        A.1     Scope
        A.2     References
        A.3     Abbreviations
        A.4     Reference model for system architecture of narrow-band interaction channels in a broadcasting scenario (asymmetric interactive services)
                  A.4.1     Protocol stack model
                  A.4.2     System model
        A.5     DVB interaction channel specification for CATV networks
                  A.5.1     System concept
                  A.5.2     Lower physical layer specification
                  A.5.3     Framing
                  A.5.4     Slot timing assignment
                  A.5.5     MAC functionality
                  A.5.6     Mini-slots
                  A.5.7     Header suppression
                  A.5.8     Security (optional)
        A.6     Interactive Cable STB/Cable Data Modem Mid-Layer Protocol
                  A.6.1     Direct IP
                  A.6.2     Ethernet MAC bridging
                  A.6.3     PPP
        A.7     (Informative Note A) MAC State transitions and time-outs
                  A.7.1     Initialization, Provisioning, Sign-on and Calibration
                  A.7.2     Connection establishment
                  A.7.3     Connection release
                  A.7.4     Reservation process
                  A.7.5     Resource request
                  A.7.6     Recalibration
                  A.7.7     Reprovision message
                  A.7.8     Transmission Control Message
                  A.7.9     Status Request Message
                 A.7.10     Idle Message
        A.8     MAC primitives (Informative)
                  A.8.1     Control and Resource primitives
                  A.8.2     Data primitives
                  A.8.3     Example MAC Control scenarios