Pawel Jakub Dawidek
pjd at FreeBSD.org
Tue May 18 02:24:43 PDT 2004
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.
IP netmask ia_broadaddr ia_netbroadcast
10.0.0.101 255.0.0.0 10.255.255.255 10.255.255.255
220.127.116.11 255.255.255.252 18.104.22.168 22.214.171.124
126.96.36.199 255.255.0.0 188.8.131.52 184.108.40.206
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
pjd at FreeBSD.org http://garage.freebsd.pl
FreeBSD committer Am I Evil? Yes, I Am!
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