[LARTC] HTB dropping packets while tokens available?

[LARTC] HTB dropping packets while tokens available?

[Justin Schoeman]

Hi again,

I just ran into a seriously strange glitch, and was wondering if anybody 
had experienced this...

I have an HTB class with an iptables classifier.  The iptables 
classifier shows packets hitting the rule for this class.

Now, HTB drops these packets ('dropped' increases), even although the 
packets are small, and there are over 10000 tokens available.

Is there any other reason HTB may decide to discard these packets?

Restarting the classifier script seems to have solved the problem, but I 
need to avoid it happening again.

Thanks,
Justin
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Re: [LARTC] HTB dropping packets while tokens available?

[Stef Coene]

On Friday 26 November 2004 10:07, Justin Schoeman wrote:
> Hi again,
>
> I just ran into a seriously strange glitch, and was wondering if anybody
> had experienced this...
>
> I have an HTB class with an iptables classifier.  The iptables
> classifier shows packets hitting the rule for this class.
>
> Now, HTB drops these packets ('dropped' increases), even although the
> packets are small, and there are over 10000 tokens available.
>
> Is there any other reason HTB may decide to discard these packets?
>
> Restarting the classifier script seems to have solved the problem, but I
> need to avoid it happening again.
The only info I have is:

Each dropped packet is overlimited. 
overlimits : Packet is not sent due to ceil or rate restrictions 
So there was too much data in the class. But don't believe this too much. It 
depends on how often the qdisc looked for packets. This counter is 
incremented per unsuccessful DRR loop and it's possible that this happens 
more then once per packet. 

From http://www.docum.org/docum.org/faq/cache/33.html

Stef

-- 
stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/