On Tue, 29 Dec 2009 15:41:20 -0500
"Brian J. Murrell" <[email protected]> wrote:

> On Sat, 2009-12-26 at 11:09 -0800, Tom Eastep wrote: 
> > 
> > The simplified tc facility in my current 4.5.0 thread is described
> > at http://www.shorewall.net/simple_traffic_shaping.html.
> 
> The turn-around on this is awesome Tom!
> 
> So is band 1 traffic really able to *completely* (as opposed to only
> *virtually* -- i.e. leaving a small percentage available) starve
> bands 2 and 3?

Yes

> If so, I think this is good -- I think this is what
> most people expect.  And if so, this sounds like it's using priority
> queues instead of one of the borrowing/lending classifiers (to
> completely butcher the nomenclature).
> 

As described in the document, it is using PRIO(8). It attaches an SFQ
qdisc (tc-sfq(8)) to each of the three classes that PRIO generates. If
IN-BANDWIDTH is given, it also invokes ingress policing.

> Tom, do you have this installed on your machine?  Could you give us a
> dump of what it ends up looking like in terms of linux's TC
> configuration?  Or give a brief overview of the TC mechanisms at use
> here?

See attachement. It shows the configuration for one interface (I have
it configured on 4).

> 
> Again, awesome work.

Thanks,
-Tom
-- 
Tom Eastep        \ When I die, I want to go like my Grandfather who
Shoreline,         \ died peacefully in his sleep. Not screaming like
Washington, USA     \ all of the passengers in his car
http://shorewall.net \________________________________________________

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