On Tue, May 18, 2004 at 11:24:39AM +0200, Pawel Jakub Dawidek wrote:
> Hi.
>
> Do we still need ia_netboradcast field? It is calculated depending on
> old-fashion classes (A, B, C). Is it used still?
> I wonder if ia_broadaddr isn't sufficient today.
not just that, it seems that ia_netboradcast contains bogus info.
This said, how do you plan to handle the alias search, by
implementing a per-interface hash table containing the
addresses and broadcast addresses ?
cheers
luigi
> IP netmask ia_broadaddr ia_netbroadcast
> 10.0.0.101 255.0.0.0 10.255.255.255 10.255.255.255
> 1.0.0.2 255.255.255.252 1.0.0.3 1.255.255.255
> 2.0.0.1 255.255.0.0 2.0.255.255 2.255.255.255
>
> I'm planing to work on removing O(n) from interface aliases search.
> Now every incoming packet have to be compared with every single
> broadcast from every single alias. When I tested something and
> there were ~10000 aliases on interface it worked really slow.
>
> This slowdown probably exists in more places. It exists in NetBSD and
> OpenBSD as well.
>
> --
> Pawel Jakub Dawidek http://www.FreeBSD.org
> [EMAIL PROTECTED] http://garage.freebsd.pl
> FreeBSD committer Am I Evil? Yes, I Am!
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