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AM3359: HSR modes

Pankaj Suryawanshi
Expert 1110 points
Part Number: AM3359

Hello Community,

There are different modes of HSR like H, T, U and N as per standard

What are this mode, If i change mode H to T , what will happen ?

Please let me know how to test different modes of HSR ?

Regards,

Pankaj

  • 0
    TI__Mastermind 43296 points

    Hi Pankaj,

    See the definitions of the HSR modes below:

    HSR_MODE H: HSR-tagged forwarding – in this mode, the DANH shall insert the HSR tag on behalf of its host and forward the ring traffic, except for frames sent by the node itself. Duplicate frames and frames where the node is the unicast destination shall not be forwarded

    HSR_MODE_N: No forwarding – in this mode, the node shall behave like mode H with the exception that it shall not forward ring traffic from port to port. This mode only alters the switch decision in the receiving task

    HSR_MODE_T: Transparent forwarding – in this mode the DANH shall remove the HSR tag before forwarding the frame to the other port and send a frame from the host to both ports, untagged and without discarding duplicates.

    HSR_MODE_U: Unicast Forwarding – in this mode, the node shall behave as in Mode H, except that it shall forward unicast traffic for which it is the destination as it does for multicast.

    You may refer to above definition to configure the mode and analyze the network traces.

    Regards,
    Garrett