Re: [LARTC] basic htb setup

[Ben <bench@silentmedia.com>]

Yep, sorry, that was a typo. The handle of the second leaf qdisc is 11:

The output of "tc -s -d class show dev eth0":

class htb 1:11 parent 1:1 leaf 11: prio 0 rate 590Kbit ceil 750Kbit burst 15Kb/8 mpu 0b cburst 2559b/8 mpu 0b quantum 7552 level 0
 Sent 7399829 bytes 6552 pkts (dropped 0, overlimits 781)
 rate 34711bps 30pps
 lended: 6552 borrowed: 0 giants: 0 injects: 0
 tokens: 150181 ctokens: 8943

class htb 1:1 root prio 0 rate 750Kbit ceil 750Kbit burst 15Kb/8 mpu 0b cburst 2559b/8 mpu 0b quantum 9600 level
 Sent 19027560 bytes 14359 pkts (dropped 0, overlimits 0)
 rate 86405bps 65pps
 lended: 4811 borrowed: 0 giants: 0 injects: 0
 tokens: 111913 ctokens: 2685

class htb 1:10 parent 1:1 leaf 10: prio 0 rate 160Kbit ceil 750Kbit burst 15Kb/8 mpu 0b cburst 2559b/8 mpu 0b quantum 2048 level 0
 Sent 11627731 bytes 7807 pkts (dropped 0, overlimits 1325)
 rate 52338bps 35pps
 lended: 2996 borrowed: 4811 giants: 0 injects: 0
 tokens: -28622 ctokens: 8943




The output of "tc -s -d class show dev eth0":

class htb 1:11 parent 1:1 leaf 11: prio 0 rate 590Kbit ceil 750Kbit burst 15Kb/8 mpu 0b cburst 2559b/8 mpu 0b quantum 7552 level 0
 Sent 8616029 bytes 7538 pkts (dropped 0, overlimits 898)
 rate 34368bps 29pps
 lended: 7538 borrowed: 0 giants: 0 injects: 0
 tokens: 141989 ctokens: 7717

class htb 1:1 root prio 0 rate 750Kbit ceil 750Kbit burst 15Kb/8 mpu 0b cburst 2559b/8 mpu 0b quantum 9600 level 3
 Sent 22251526 bytes 16692 pkts (dropped 0, overlimits 0)
 rate 86312bps 64pps
 lended: 5648 borrowed: 0 giants: 0 injects: 0
 tokens: 98400 ctokens: -10828

class htb 1:10 parent 1:1 leaf 10: prio 0 rate 160Kbit ceil 750Kbit burst 15Kb/8 mpu 0b cburst 2559b/8 mpu 0b quantum 2048 level 0
 Sent 13635497 bytes 9154 pkts (dropped 0, overlimits 1494)
 rate 51048bps 34pps
 lended: 3506 borrowed: 5648 giants: 0 injects: 0
 tokens: -45392 ctokens: -2927



On Thu, 28 Feb 2002, Stef Coene wrote:

> On Thursday 28 February 2002 04:25, Ben wrote:
> > Hey all. I'm trying to set up QoS using the HTB qdisc in a very basic
> > setup, but it the example shown in the howto doesn't seem to be working.
> > While the packets show up in the correct classes, they appear to be
> > completely ignoring the rates, meaning nothing gets shaped.
> >
> > My setup is that I've got a a bunch of machines behind my firewall/router:
> >
> >
> > 1.2.3.1      +----------------------------+    10.0.0.1
> > 1.2.3.2 -----+eth0  firewall/router   eth1+--- 10.0.0.2
> > 1.2.3.3      +----------------------------+    10.0.0.3
> >
> >
> > 10.0.0.1 is nat'd to 1.2.3.1, 10.0.0.2 to 1.2.3.2, etc. eth0 is attached
> > to a 768Kbit DSL line, and eth1 to a 100Mb ethernet.
> >
> > I want to limit the output of 10.0.0.1, but let it borrow from everybody
> > else's bandwidth when the bandwidth would go unused. HTB seems ideal for
> > this, and the TC stuff is pretty much identical to the basic one in the
> > howto:
> >
> > tc qdisc add dev eth0 handle 1: root htb default 11
> >
> > tc class add dev eth0 parent 1: classid 1:1 htb rate 768kbit ceil 768kbit
> > burst 15k tc class add dev eth0 parent 1:1 classid 1:10 htb rate 160kbit
> > ceil 768kbit burst 15k tc class add dev eth0 parent 1:1 classid 1:11 htb
> > rate 608kbit ceil 768kbit burst 15k
> >
> > tc qdisc add dev eth0 parent 1:10 handle 10: sfq perturb 10
> > tc qdisc add dev eth0 parent 1:11 handle 10: sfq perturb 10
> You use twice handle 10:.  Typo ?
>
> >
> > tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip src
> > 1.2.3.1 flowid 1:10
> >
> >
> > When I start sucking a lot of data from 10.0.0.1 and 10.0.0.2 from outside
> > the firewall, the packets end up in the correct classes (judging by tc -s
> > -d show dev eth0). But they also are processed at equal rates, not at the
> > 160:608 ratio I've specified.
> Do you use the full 768kbit ?
> When you do tc -s -d class show dev eth0, do you see any packets in class
> 1:11?
> Or better, post the output of that command.
>
> Stef
>
> --
>
> stef.coene@docum.org
>  More QOS info : http://www.docum.org/
>  Title : "Using Linux as bandwidth manager"
>

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