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Spirent TestCenter: Is there any different behavior between "start traffic on all ports" and "start stream blocks"?

  • Spirent TestCenter
    • Start Traffic Generator
    • Start Streams
  • The default setting is a Sync start which means “start traffic on all ports” will use this setting and start all generators at the same time.
    • The DUT will be stressed with traffic from all connected ports all at the same time.
  • “Start stream blocks” will simply start when each individual stream is ready to go and not synchronize to start at the same time as other stream blocks.
    • So the DUT will not be stressed as much.
  • Also if you have a timer set to have the generator run for 30 seconds (instead of continuous) then “start traffic on all ports” will stop after 30s, but “start stream blocks” will not stop.

Product : Spirent TestCenter,PGA