4.28.5 TSN TAS Max SDU Configuration

The TSN TAS Max SDU Configuration page has the following parameters:

Figure 4-112. TAS SDU Configuration
  • Port: Port number of the switch.
  • Maximum SDU: The value of the Maximum SDU size parameter for the traffic class supported by the port. This value is represented as an unsigned integer in the range 0-10240. A value of 0 is interpreted as the Maximum SDU size supported by the underlying MAC: 10240. The default value of the Maximum SDU parameter is 1536. The Maximum SDU size parameter is used to calculate the guard band time = Maximum SDU * 8 / LINK_SPEED (sec) If frame preemption is enabled and a gate operation is SetAndHold, the guard band time in preemptable queues is automatically selected as the frame preemption minimum fragment size plus 64 bytes. A queue is said to be preemptable, if frame preemption is enabled, and if this queue is not opened in a SetAndHold gate operation.