Date: Sat, 22 Oct 2005 20:54:17 -0400 From: Bruno Afonso <brunomiguel@dequim.ist.utl.pt> To: Bill Marquette <bill.marquette@gmail.com> Cc: freebsd-pf@freebsd.org Subject: Re: FreeBSD + MPD + PF + ALTQ Message-ID: <435ADF39.90700@dequim.ist.utl.pt> In-Reply-To: <55e8a96c0510221659g7ac457b1gc696f392a249fee3@mail.gmail.com> References: <000b01c5d644$54527f20$0132a8c0@delta> <4359ED5B.7010303@dequim.ist.utl.pt> <55e8a96c0510220651t47fa063ayefd1dcffd63950a6@mail.gmail.com> <435A6025.5060602@dequim.ist.utl.pt> <55e8a96c0510221659g7ac457b1gc696f392a249fee3@mail.gmail.com>
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Bill Marquette wrote:
>> Yes, I have now tried and verified that it works, but not as we would
>> like to in the sense of a meta interface, eg:
>>
>> altq on { tun0 tun1 tun2 } cbq bandwidth 1Mb queue { a b }
>> queue a bandwidth 700Kb cbq(default)
>> queue b bandwidth 300Kb
>>
>>
>> which turns itself into... (from pfctl -sq)
>>
>>
>> queue root_tun0 bandwidth 1Mb priority 0 cbq( wrr root ) {a, b}
>> queue a bandwidth 700Kb cbq( default )
>> queue b bandwidth 300Kb
>> queue root_tun1 bandwidth 1Mb priority 0 cbq( wrr root ) {a, b}
>> queue a bandwidth 700Kb cbq( default )
>> queue b bandwidth 300Kb
>> queue root_tun2 bandwidth 1Mb priority 0 cbq( wrr root ) {a, b}
>> queue a bandwidth 700Kb cbq( default )
>> queue b bandwidth 300Kb
>>
>>
>> What would I want with this? To create a queue that is shared by every
>> interface, so limiting globally every interface to a maximum of 1Mb each
>> and all of them to 1Mb each too, in a cqb borrowing shared way. For
>> examply, I'd like a to never exceed 700Kb taking into account every
>> interface. This makes perfect sense if I have a limited ammount of bw to
>> share among each client, which, in a real world, happens 99,9% of the
>> time because resources are limited.
>>
>> So, the syntax works, but it does achieve what I mentioned before, the
>> meta interface concept. The example you give is only useful for
>> simplifying rulesets, although it's more difficult for humans to understand.
>
>
> From what I understand, that binds queue 'a' to every interface. The
> queue definition still limits the queue itself to 700Kb, but allows
> you to assign traffic to that queue on each interface that queue is
> bound to. I can't find the email that I read that suggests it now
> (machine having recently been wiped and google not being terribly
> forthcoming with the answer).
>
> Have you verified this not working with real traffic, or just the
> pfctl -sq output? At this time I don't have a multi-interface box at
> my disposal, so I can't easily test this.
The machine I'm taking care of ( thousands of miles away) not always has
traffic so it's difficult for me to test this :( Before answering you I
googled for it too and couldn't find it. Since this isn't documented, I
am really skeptic but hoping to be proven wrong :)
best
>
> --Bill
--
Bruno Afonso, Biological Engineer
Dana-Farber Cancer Institute
1 Jimmy Fund Way
Smith Building
Boston, MA 02115
phone: (617)-632-5105
GABBA Graduate Student (http://gabba.up.pt)
Homepage @ http://brunoafonso.net/
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