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Forum Post: RE: AM2431: Ethernet performance

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Hi Ashwani, PC is sending specific frames, need to be consumed by specific AM243x? The PC, which acts as the controller, sends different frames for various purposes. I can send MAC frames, and it works very well, but one of the conditions requires sending a broadcast frame for better efficiency, so I am trying to implement that. Product-1-CPSW-Port is receiving and reverting back same frame which will go to next Product-2-CPSW-Port as well. Is it intentional? When the Ethernet IC in Product-1 receives a frame, it automatically transfers it to the AM2431 host port and to Product-2. It doesn't require AM2431 involvement for this. Basically, CPSW IP supports 1G for switching to another port, not HOST Rx. I am curious about this: does it mean CPSW can only handle up to 1G when transferring frames to port 2, but not for the host port? The hardware interface is RGMII, and I thought this was a 1G speed interface. From my experiments so far, my assumption is that the AM2431 host port can receive and transfer frames at 1G speed, but it cannot handle 1Gbit of data in 1 second. Can you confirm this? Best regard, Larry

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