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[6AK2H14]9000 byte MTU support in 10G ethernet

Sung-IL
Mastermind 30850 points
Other Parts Discussed in Thread: 66AK2H14

Dear Team,

Is it possible to work with 9000bytes MTU size using 10G ethernet in 66AK2H14?

My customer tested it as below, but they found data was lost although kernel confirmed data was received.

ifconfig eth4 192.168.100.50 mtu 9000 

Could you please let me know if 9000byte MTU size can be work in 10G ethernet of 66AK2H14?

Is there anything they should modify in Linux kernel setting for this JUMBO frame networking?

Their SW is MCSDK 3.14.

Thanks and Best Regards,

SI.

  • 0
    TI__Guru**** 161600 points
    Hi,

    I've forwarded this to the ethernet experts. Their feedback will be posted here.

    Best Regards,
    Yordan
  • 0 in reply to Yordan Kovachev
    TI__Guru* 95265 points

    Hi,

    We support 9000 bytes mtu on 10G Ethernet. We used command like:

    • ifconfig eth0 mtu 8000
    • iperf -c 15.1.1.75 -P 4 -t 60 --len 7900; iperf -s --len 8000
    • iperf -c 15.1.1.75 -P 4 -t 60 --len 7900 -b 2000M; iperf -s -u --len 8000

    to test UDP/TCP throughput. There were some kernel tuning techniques developed based on MCSDK 3.1.4.7 and added to later GA release. Please use the latest Processor Linux RTOS SDK on K2H for 10G.

    Regards, Eric