Scheduling and traffic shaping: All devices that are participating in real-time communication adhere to the same rules in processing and forwarding communication packets.Time synchronization: All devices that are participating in real-time communication need to have a common understanding of time.However, only when used together in a concerted way, TSN as a communication system can achieve its full potential. Each and every standard specification can be used on its own and is mostly self-sufficient. The different AVB/TSN standards documents specified by IEEE 802.1 can be grouped into three basic key component categories that are required for a complete real-time communication solution based on switched Ethernet networks with deterministic quality of service (QoS) for point-to-point connections. Data can be lost when the buffers are too small or the bandwidth is insufficient, but excessive buffering adds to the delay, which is unacceptable when low deterministic delays are required. Network congestion is handled by throttling and retransmitting dropped packets at the transport layer, but there are no means to prevent congestion at the link layer. Even if the average hop delay is very low, individual delays can be unacceptably high. Delivering data reliably is more important than delivering within a specific time, so there are no constraints on delay or synchronization precision. Standard Information technology network equipment has no concept of "time" and cannot provide synchronization and precision timing. Applications include converged networks with real-time audio/video streaming and real-time control streams which are used in automotive or industrial control facilities. These extensions in particular address the transmission of very low transmission latency and high availability. The majority of projects define extensions to the IEEE 802.1Q – Bridges and Bridged Networks, which describes virtual LANs and network switches. The standards define mechanisms for the time-sensitive transmission of data over deterministic Ethernet networks. The name changed as a result of the extension of the working area of the standardization group. The TSN task group was formed in November 2012 by renaming the existing Audio Video Bridging Task Group and continuing its work. Time-Sensitive Networking ( TSN) is a set of standards under development by the Time-Sensitive Networking task group of the IEEE 802.1 working group. JSTOR ( November 2019) ( Learn how and when to remove this template message).Please improve this article by adding secondary or tertiary sources.įind sources: "Time-Sensitive Networking" – news This article relies excessively on references to primary sources.
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