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Original question:

PROCESSOR-SDK-AM335X: HSR/PRP

PROCESSOR-SDK-AM335X: CPSW PRP packet loss

vic chang
Prodigy 10 points

Part Number: PROCESSOR-SDK-AM335X

I use CPSW test PRP, without PRU.

 

Ping 192.168.2.137 in card 2 will cause packet loss, as follows：(Seq changed from 530 to 590, with many packets missing)

 

SDK: ti-processor-sdk-linux-rt-am335x-evm-05.03.00.07

Question: how can I solve this packet loss ???

 

 

  • 0
    TI__Mastermind 41510 points

    Hi,

    My suggestion is to verify that the ping requests and replies are actually being transmitted and received. There could be the possibility that ping may not have sent the packets or the stack dropped them both the sender and receiver. 

    The other verification would be to take the switches out of the loop. This would account for any external factors on the line. Look at /proc/net/snmp to see if the ICMP InEchos/OutEchos have gaps in them like the console print out. If the switches support port mirroring try using a mirror port on the switch with Wireshark to see if the ping packets can be accounted for.

    Best Regards,

    Schuyler