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The standard does not define loop prevention and forwarding protocol. A 1905.1 device is compatible with existing IEEE 802.1 bridging protocols. The management of a 1905.1 device is simplified by the use of a unified Abstraction Layer Management Entity (ALME) and with the use of a data model accessible with CWMP (Broadband Forum TR-069)
The common architecture specification defines a format of nested protocol data units (PDUs), rather similar to TLV encoding, which are used in the main protocols. It then defines how a minimal Root Layer Protocol is used to splice the higher level protocols into a lower level transport and defines such a Root Layer Protocol using the PDU format for use on UDP/IP.
Re-marking a packet is sometimes used to increase its drop precedence if a stream's bandwidth exceeds a certain threshold. For example, a stream whose rate is above the Committed Information Rate (CIR) as defined in RFC 2697 causes the stream to be marked with a higher AF drop precedence. This allows the decision as to when to shape the stream ...
The Network Abstraction Layer (NAL) is a part of the H.264/AVC and HEVC video coding standards. The main goal of the NAL is the provision of a "network-friendly" video representation addressing "conversational" (video telephony) and "non conversational" (storage, broadcast, or streaming) applications.
The IEEE AVB/TSN suite serves as the foundation for deterministic networking to satisfy the common requirements of these applications. AVB/TSN can handle rate-constrained traffic, where each stream has a bandwidth limit defined by minimum inter-frame intervals and maximal frame size, and time-trigger traffic with an exact accurate time to be sent.
The concept of interactive multicast, for example using IP multicast, may be used over TV broadcast networks to improve efficiency, offer more TV programs, or reduce the required spectrum. Interactive multicast implies that TV programs are sent only over transmitters where there are viewers and that only the most popular programs are transmitted.
The specification requires media clocking based on the AVTP CRF (Clock Reference Format) and sample rate of 48 kHz (optionally 96 and 192 kHz); audio stream format is based on AVTP IEC 61883-6 32-bit Standard AAF Audio Format with 1 to 8 audio channels per stream (optionally, 24- and 32-bit High Capacity Format with 56 and 64 channels ...
The native stream format for DVB-S2 is called Generic Stream (GS), and can be used to efficiently carry IP-based data, including MPEG-4 AVC/H.264 services. Backward compatibility to DVB-S, intended for end users , and DVB-DSNG, used for backhauls and electronic news gathering .