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闲来生雅趣,无事乐逍遥。对窗相望雪,一盏茶香飘。

TSN常见协议

#TSN


TSN

图1中给出了目前一些引入到了时间敏感网络中的概念。其中有一些概念已经成熟,并作为标准协议在 IEEE 中进行了发布。有一些还是草案,正在被讨论。

  • 时间同步( Time sync ):
    • 定时与同步( Timing and Synchronization((IEEE Std 802.1AS - Timing and Synchronization)) )
  • 有限的低延迟( Bounded low latency):
    • 基于信用的整流( Credit Based Shaper((IEEE Std 802.1Qav - Forwarding and Queuing of Time Sensitive Streams (FQTSS) )) )
    • 帧抢占( Frame Preemption((IEEE Std 802.1Qbu - Frame Preemption)) )
    • 规划传输( Scheduled Traffic((IEEE Std 802.1Qbv - Enhancements for Scheduled Traffic)) )
    • 周期性的队列与转发( Cyclic Queueing & Forwarding((IEEE Std 802.1Qch - Cyclic Queueing & Forwarding)) )
    • 异步传输整流( Asynchronous Traffic Shaping((IEEE P802.1Qcr - Asynchronous Traffic Shaping)) )
  • 可靠性( Ultra reliability ):
    • 帧复制和消除( Frame Replication & Elimination((IEEE P802.1CB - Frame Replication and Elimination for Reliability)) )
    • 路径控制( Path Control((IEEE Std 802.1Qca - IS IS Path Control and Reservation (PCR) )) )
    • 以流为单位的过滤与策略( Per Stream Filtering & Policing((IEEE Std 802.1Qci - Per Stream Filtering and Policing)) )
    • 零拥塞损失( Zero congestion loss((IEEE P802.1CB - Frame Replication and Elimination for Reliability)) )
  • 专有资源( Dedicated resources & API )
    • 流保留协议( Stream Reservation Protocol((IEEE Std. 802.1Qat - Stream Reservation Protocol (SRP) )) ((IEEE P802.1Qcc - Stream Reservation Protocol (SRP) Enhancements & Performance Improvements and TSN configuration)) )
    • TSN 配置( TSN configuration((IEEE P802.1Qcc - Stream Reservation Protocol (SRP) Enhancements & Performance Improvements and TSN configuration)) )
    • YANG 数据模型( YANG((IEEE P802.1Qcp - YANG Data Model)) )
    • 本地连接预留协议( Link local Reservation Protocol((IEEE P802.1CS - Link local Registration Protocol (LRP) )) )