Date: Tue, 30 Apr 1996 00:41:22 -0600 (MDT) From: Dave Andersen <angio@aros.net> To: freebsd-questions@freebsd.org Subject: Re: Porting if_vif.c to FreeBSD 2.0.5... Message-ID: <199604300641.AAA26399@terra.aros.net> In-Reply-To: <199604300206.LAA18141@genesis.atrad.adelaide.edu.au> from "Michael Smith" at Apr 30, 96 11:36:53 am
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Lo and behold, Michael Smith once said:
>
> rjb@intac.com stands accused of saying:
> >
> > Has anyone had any experience porting John Ionnidis's vif (virtural interface)
> > code to FreeBSD?
>
> Why bother? FreeBSD allows you to alias an arbitrary number of addresses
> to an interface, so dummy interfaces are completely unnecessary.
On the stupid question front, I'm wondering if anyone's actually looked
at the kind of degredation you get with packet response times on aliased
interfaces?
To wit: On a linux 1.2.13 with aliasing, the 130th alias takes ~3ms
longer to ping on a local ethernet than the interface address itself.
(4.5ms vs 1.5ms). I don't have enough aliases on the freebsd boxes to
test this (and they're 'production' so I'm not in the mood to play with
them. :), so I'm curious if someone's actually looked at it?
-Dave Andersen
--
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