Next to higher bandwidths, the access network must support quality of service (QoS) features including traffic differentiation, policing, queuing, and scheduling in order to prioritize video and voice services over best effort services, such as Web browsing.Even with access networks based on VDSL2, resources on the access link (the first mile) and the access node uplink (the second mile) remain rather limited. To protect the first and second mile against cases of network overload, admission control functionality can be used. This paper focuses on the notion of resource admission control (RAC) as a means to protect services from quality degradation in cases of exceptional loading conditions. It describes a number of scenarios explaining how to perform RAC for broadcast Internet Protocol TV (BTV) and video on demand (VoD).
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