LARTC - May 2007 - HTB and burst...

Hey everyone,

For some reason my htb configuration isn''t allowing any class to burst
up to its ceiling ever, even when the link is only being utilised by one
class that class only ever gets its assigned rate and exactly that
assigned rate...

The hierarchy I have is 1: at the root with no default, then 1:2 and 1:3
under that, both with assigned rates, then 2: and 3: under those
respectively with defaults configured. Iptables marks the packets based
on incoming interface which then get filtered to either 1:2 or 1:3 and
filtered again, shaped accordingly etc... All classes and qdiscs are HTB

Any ideas anyone?

-- 
Michael Fincham <michael@hotplate.co.nz>

Michael Fincham wrote:
> Hey everyone,
> 
> For some reason my htb configuration isn''t allowing any class to
burst
> up to its ceiling ever, even when the link is only being utilised by one
> class that class only ever gets its assigned rate and exactly that
> assigned rate...
> 
> The hierarchy I have is 1: at the root with no default, then 1:2 and 1:3
> under that, both with assigned rates, then 2: and 3: under those
> respectively with defaults configured. Iptables marks the packets based
> on incoming interface which then get filtered to either 1:2 or 1:3 and
> filtered again, shaped accordingly etc... All classes and qdiscs are HTB
> 
> Any ideas anyone?
> 
It could be to do with clock Hz - your burst needs to be large enough to 
reach rate/ceil per tick.

Andy.

It looks as though I may have had the hierarchy wrong... I had a class
with a qdisc as a child then all my classes as children of the qdisc...
now borrowing allowed as they''re all root qdiscs.

-Michael


On Thu, 2007-05-03 at 08:53 -0700, Flechsenhaar, Jon J
wrote:
> I would need to see your actual script to say for sure. 
> 
> 
> Jon Flechsenhaar
> Boeing WNW Team
> Network Services
> (714)-762-1231
> 202-E7
> 
> -----Original Message-----
> From: Michael Fincham [mailto:michael@hotplate.co.nz] 
> Sent: Wednesday, May 02, 2007 6:23 PM
> To: lartc@mailman.ds9a.nl
> Subject: [LARTC] HTB and burst...
> 
> Hey everyone,
> 
> For some reason my htb configuration isn''t allowing any class to
burst
> up to its ceiling ever, even when the link is only being utilised by one
> class that class only ever gets its assigned rate and exactly that
> assigned rate...
> 
> The hierarchy I have is 1: at the root with no default, then 1:2 and 1:3
> under that, both with assigned rates, then 2: and 3: under those
> respectively with defaults configured. Iptables marks the packets based
> on incoming interface which then get filtered to either 1:2 or 1:3 and
> filtered again, shaped accordingly etc... All classes and qdiscs are HTB
> 
> Any ideas anyone?
> 
> --
> Michael Fincham <michael@hotplate.co.nz>
> 
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