Date: Sun, 2 Apr 2006 20:57:48 -0600 From: "Bill Marquette" <bill.marquette@gmail.com> To: "Christopher McGee" <chris@xecu.net> Cc: freebsd-pf@freebsd.org Subject: Re: Traffic mysteriously dropping Message-ID: <55e8a96c0604021957y6959fcban1e885f93f9db6d2c@mail.gmail.com> In-Reply-To: <442CD97B.2050103@xecu.net> References: <442CD1E7.9030803@xecu.net> <442CD97B.2050103@xecu.net>
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On 3/31/06, Christopher McGee <chris@xecu.net> wrote:
> A quick follow up since I realize I left out a little detail. I have
> tried this on 5.4-RELEASE-p8 and 6.0-RELEASE-p6. I've been trying to
> get altq working properly also, but it's been disabled until I work out
> the above problem.
>
> The problem I've had with altq is trying to implement hfsc on the 6.0
> firewall. I thought it was a pretty simple configuration. I want to
> limit outgoing traffic to 100Mbit/s and have one queue higher priority,
> with a guaranteed 3 Mb of bandwidth, and a second lower priority queue
> with no guaranteed bandwidth. The 2 queues should share the 97Mb of
> spare bandwidth evenly when the firewalls are busy, and queue2 should
> not be allowed to exceed 95Mb ever. This is what I put together but it
> errors:
>
> altq on $ext_if bandwidth 100Mb hfsc queue { queue1, queue2 }
> queue queue1 priority 3 hfsc(realtime 3Mb linkshare 50% default red)
> queue queue2 hfsc(upperlimit 95Mb linkshare 50% red)
>
> I get the following error:
> pfctl: the sum of the child bandwidth higher than parent "root_em0"
You've got two issues here. The one causing the pfctl error is easy
to solve, you need to put a bandwidth keyword on the queue statement
(it can be 0Kb - it's ignored). The second, is that priority and
linkshare are mutually exclusive. If linkshare is in use, priority is
ignored. Use one or the other.
--Bill
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