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Message-ID: <20100409212657.GA3560@del.dom.local>
Date: Fri, 9 Apr 2010 23:26:57 +0200
From: Jarek Poplawski <jarkao2@...il.com>
To: Antonio Almeida <vexwek@...il.com>
Cc: netdev@...r.kernel.org, kaber@...sh.net, davem@...emloft.net,
devik@....cz
Subject: Re: HTB - What's the minimal value for 'rate' parameter?
On Fri, Apr 09, 2010 at 04:40:44PM +0100, Antonio Almeida wrote:
> So, what about the rate limit miss?
> As you can see the ceil of class 1:2 is set to 4096Kbit but its
> sending rate is actually 8071Kbit!
> It looks like classes 1:10 and 1:11 are ignoring hierarchical rate
> restrictions of class 1:2
> Here:
> class htb 1:2 parent 1:1 rate 4096Kbit ceil 4096Kbit burst 3655b cburst 3655b
> Sent 84285894 bytes 55671 pkt (dropped 0, overlimits 0 requeues 0)
> rate 8071Kbit 666pps backlog 0b 0p requeues 0
> lended: 0 borrowed: 0 giants: 0
> tokens: -937499999 ctokens: -937499999
Yes, since 1:2 has grandchildren with overflown rate tables, they
could behave as if they had set rates higher than their parents or
grandparent (and HTB doesn't restrict it hierarchically).
Jarek P.
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