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Three chunks to present for Pat and I. We will figure out how to divide it up.
Goal: super reliable, guaranteed latency, convergence
Time synchronization
The three elements of TSN QoS:
- Zero congestion loss
- Pinned-down paths
- Seamless redundancy
Defense against errors
QoS as a feature, not a development system
Work underway in various standards bodies
Queuing methods
- strict priority
- weighted priority
- AVB shaper on high priority
- Time-gated (scheduled) queues
- AVB shaper per flow (UBS)
- Cyclic Queuing & Forwarding
Express traffic
- Minimum disruption of MAC/PHY
- no big new error source
- interaction with MACsec
- negotiationless capability discovery
- Minimizes impact of schedules on non-scheduled traffic
(sand between the rocks)
- enables cut-through
— Norm
From: pthaler@xxxxxxxxxxxx
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