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    SubjectRe: [PATCH net-next] sysfs: add entry to indicate network interfaces with random MAC address
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    | From: Andy Gospodarek <andy@greyhouse.net>
    | Date: Wednesday, July 21, 2010 08:07 am
    |
    | Agreed. The subtle difference between a locally assigned address that
    | is persistent and one that is random would be helpful.

    And just to point out that this case _does_ exist: the igb/igbvf drivers use
    random_ether_addr() to generate a random, locally assigned MAC address for the
    PCI-E SR-IOV Virtual Function MAC Addresses while the cxgb4/cxgb4vf drivers use
    a persistent, non-random locally assigned MAC Addresses.

    Note that I am neither arguing for nor against the proposal. I'm just
    pointing out an existence case for the distinction. And yes, bit 1 being set in
    the first octet of a MAC address for locally assigned MAC Addresses is part of
    the IEEE 802 specification just as bit 0 being set in the same octet indicates
    that it's a multi-station address.

    Casey


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