Re: ALTQ, pf and VLANs

From: Max Laier (max_at_love2party.net)
Date: 03/31/05

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    To: Marko q=8Cuk?= <cuk@cuk.nu>
Date: Thu, 31 Mar 2005 20:42:10 +0200

    On Thursday 31 March 2005 19:29, Marko Čuk wrote:
    > I am still running 5.3-RELEASE-p5 and there is
    >
    > /*$FreeBSD: src/sys/dev/em/if_em.c,v 1.44.2.2 2004/10/15 22:12:59
    > tackerman Exp $*/
    >
    > , obviously unpatched and bad driver. I'll try to cvsup to 5.4-PRE, but
    > I'm a little worried with stability, as this is my main firewall for
    > whole network.
    >
    > 2nd thing... try to disable it manually ? What :) ? I don't quite
    > understand you on that .

    Whoops, sorry - work blindness. I meant to say: Try to disable the hardware
    supported VLAN tagging manually $ifconfig em0 -vlanhwtag

    > ifconfig em1 disable ? :) I have traffic on it :) ( I'll be running
    > carp as soon and pfsync as I'll learn how to and if it will work fine
    >
    > :) , to have redaudant firewall )
    >
    > Cuk
    >
    > Max Laier wrote:
    > >On Thursday 31 March 2005 04:38, Marko Čuk wrote:
    > >>Max, that solution works fine. I have tried it and it works fine for me.
    > >>
    > >>Thanks.
    > >>
    > >>Anyway, do you know some issues with dropping traffic on em0 vlan
    > >>enabled interfaces and tcpdump-ing ? The average traffic, that we
    > >>tcpdump is cca 10-20mbit/s and when tcpdump-ing, we get allmost 90%
    > >>packet loss on interfaces. Any clue ?
    > >
    > >Ugh, I know of such an issue, but was thinking that it should be fixed by
    > > now. Can you make sure that you have your kernel/em(4) built with if_em.c
    > > 1.44.2.6 or later? The effect should simply be that it disables VLAN
    > > hardware support which doesn't seem to work with promiscuous mode. You
    > > could also try to disable it manually (ifconfig) to see if that improves
    > > on the packet loss.
    > >
    > >>Marko
    > >>
    > >>Max Laier wrote:
    > >>>On Tuesday 29 March 2005 20:28, Marko Čuk wrote:
    > >>>>Will that be fixed in 5.4 ? Right now, today it won't work without a
    > >>>>patch.
    > >>>>
    > >>>>pfctl: vlan0: driver does not support altq
    > >>>
    > >>>Please see:
    > >>>http://lists.freebsd.org/mailman/htdig/freebsd-net/2005-February/006456.
    > >>>ht ml
    > >>>
    > >>>If you still can't live without ALTQ rate-limitting on VLAN submit a PR
    > >>>and throw it my way. 

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