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Spirent TestCenter: Why my ToS value is changing back to another value not selected?

Environment/Versions
-STC any version
-Any module, including offline configuration
Answer
In this occasion, the Tos value that wanted to be changed was from x64 to x60, but every time the value was changed, it changed back to the x64 ToS value on the frame.
This is caused because the Reliability was set to "High" on the device itself, changing this configuration cause the streamblocks bounded to that device to adapt to that ToS automatically.
If the Reliability in the device is changed back to "Normal" the value on the streamblock will be able to change.


 

Product : Spirent TestCenter