Re: how many IP aliases

From: Anton Alin-Adrian (aanton_at_reversedhell.net)
Date: 05/27/04

  • Next message: Deepak Jain: "Re: KVA space problems?" 
    Date: Thu, 27 May 2004 21:28:55 +0300
To: freebsd-hackers@freebsd.org

    Per Engelbrecht wrote:
    >>>There is no upper limit.
    >
    >
    > ok.
    > I
    >
    great. got that.

    >>>>do know that 128 addresses isn't a problem - depending of course
    >>>>on your setup such as ram, cpu, board and last but not least,
    >>>>nic. Don't do it on a $20 nomame-nic.
    >>>
    >>>It doesn't make any difference to the NIC.

    Well I understand it's just a linked list with aprox 128 nodes. That should
    be OK on decent RAM and CPU.

    >
    >
    > Correct me if I'm wrong, but addresses to a interface is 'managed'
    > by SIOCAIFADDR and yes, that has noting to do with the nic itself.
    >
    They have nothing to do with NICs, they have to do with OS implementation.

    NICs talk on ethernet level, and I don't know any NIC's designed with
    special hardware for handling IP aliases. Intel's FXPs rule, because they
    even do CRC and QoS with microchip:).

    Probably his point was no-name hardware with small buffers may add to the
    latency.

    Thank you all so much!

    Best Wishes, 

    -- 
Alin-Adrian Anton
Reversed Hell Networks
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