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ahaa's avatar
ahaa
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

why there is only port 2 is up when i want to use the mode of 4x25G on N3000

After updating 4x25G related .bin file into N3000 and rsu the bmc , when i checked the information with command of "sudo fpgainfo phy", port 0, port 1 and port 3 were all down and only port 2 was up...
ahaa's avatar
ahaa
Icon for Occasional Contributor rankOccasional Contributor
5 years ago
Thanks for your reply , the BD I used is N3000-2 I think.
The question has been solved after an external traffic generator was used.
The reason may be when i use 8x10 G mode the cable was linking QSFP A with QSFP B for a loop so the links were all up；while in the case of 4x25 G, the QSFP B is disabled actually, but the cable still was linking the QSFP A with QSFP B.
If I am wrong please let me know.
Thank for your reply again!
ahaa's avatar
ahaa
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

Maybe I was wrong on the understanding of 8x10G.

I found my BC is N3000-2 after checking my order，which means the BC is not supported for the mode of 8x10 G. And all ports were up in 8x10G may be only an illusion or a good fortunate.

  • JonWay_altera's avatar
    JonWay_altera
    Icon for Frequent Contributor rankFrequent Contributor
    5 years ago

    I did not test it before. So im not sure of the full impact of putting a 10G image into 25G card.