[LARTC] Shaping the sum of incoming and outgoing traffic

[LARTC] Shaping the sum of incoming and outgoing traffic

[Jan Rovner]

Hello,

does anyone have a working solution for the shaping both incoming and
outgoing traffic in such
way, that for a given client the *sum* of incoming and outgoing traffic
is somehow defined?

My ISP does the same thing, it gives me just a line of a defined rate,
no matter the traffic
direction (i.e. here is your line, the clock speed is 1024kbps, do what
you want).

I'm a litte bit familiar with HTB, my download shaping works fine.
However, I would like shape
both incoming+outgoing traffic in a way that the sum of actual outgoing
and incoming rates 
of all my clients would be always below the ISP's line speed in order to
shaping get working.

In other words, I would like to split the ISP's line into a bunch of
hierarchical "virtual" lines
with traffic borrowing etc. like HTB does for download, but with defined
*total* rates (i.e. dear
customer, here is your 128kbps line, do what you want).

What can I do with HTB is to shape incoming and traffic separately
(somehow to virtually split 
the line for upload/download with limited speeds), but this is not the
way I would like it to be, since 
would like to get the line used as effective as possible.

Maybe something like IMQ would work, but unfortunately I have found no
example for
that solution.

Any ideas?

Jan Rovner
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Re: [LARTC] Shaping the sum of incoming and outgoing traffic

[Andy Furniss]

Jan Rovner wrote:
> Hello,
> 
> does anyone have a working solution for the shaping both incoming and
> outgoing traffic in such
> way, that for a given client the *sum* of incoming and outgoing traffic
> is somehow defined?
> 
> My ISP does the same thing, it gives me just a line of a defined rate,
> no matter the traffic
> direction (i.e. here is your line, the clock speed is 1024kbps, do what
> you want).
> 
> I'm a litte bit familiar with HTB, my download shaping works fine.
> However, I would like shape
> both incoming+outgoing traffic in a way that the sum of actual outgoing
> and incoming rates 
> of all my clients would be always below the ISP's line speed in order to
> shaping get working.
> 
> In other words, I would like to split the ISP's line into a bunch of
> hierarchical "virtual" lines
> with traffic borrowing etc. like HTB does for download, but with defined
> *total* rates (i.e. dear
> customer, here is your 128kbps line, do what you want).
> 
> What can I do with HTB is to shape incoming and traffic separately
> (somehow to virtually split 
> the line for upload/download with limited speeds), but this is not the
> way I would like it to be, since 
> would like to get the line used as effective as possible.
> 
> Maybe something like IMQ would work, but unfortunately I have found no
> example for
> that solution.
> 
> Any ideas?
> 
> Jan Rovner

I did this as a proof of concept a while ago, but never finished it. It 
works but I didn't prioritise empty acks so testing both ways with TCP 
will fall apart - but then it does on a full duplex connection. Remember 
it's a test and I can't even remember the detail so you will need to 
modify alot - INPUT/OUTPUT etc for real world.

Andy.


#set -x
IPTABLES=/usr/local/sbin/iptables
MODPROBE=/sbin/modprobe
IP=/usr/sbin/ip
TC=/usr/sbin/tc

$IPTABLES -t mangle -D INPUT -i eth0 -j MARK --set-mark 1  &> /dev/null
$IPTABLES -t mangle -D OUTPUT -o eth0 -j MARK --set-mark 2  &> /dev/null

$IPTABLES -t mangle -D POSTROUTING -m mark --mark 1 -j IMQ --todev 0 &> 
/dev/null
$IPTABLES -t mangle -D POSTROUTING -m mark --mark 2 -j IMQ --todev 0 &> 
/dev/null
$IP link set imq0 down &> /dev/null
$MODPROBE -r imq &> /dev/null

if [ "$1" = "stop" ]
then
         echo "stopping"
         exit
fi

$MODPROBE imq numdevs=1

$IPTABLES -t mangle -I INPUT -i eth0 -j MARK --set-mark 1
$IPTABLES -t mangle -I OUTPUT -o eth0 -j MARK --set-mark 2

$IPTABLES -t mangle -I POSTROUTING -m mark --mark 1 -j IMQ --todev 0
$IPTABLES -t mangle -I POSTROUTING -m mark --mark 2 -j IMQ --todev 0
$IP link set imq0 up

$TC qdisc add dev imq0 root handle 1:0 htb default 0

$TC class add dev imq0 parent 1:0 classid 1:1 htb rate 128kbit ceil 
128kbit burst 2k

#### down ####
$TC class add dev imq0 parent 1:1 classid 1:10 htb rate 64kbit ceil 128kbit
$TC filter add dev imq0 parent 1:0 prio 1  protocol ip handle 1 fw 
flowid 1:10

#### up ####
$TC class add dev imq0 parent 1:1 classid 1:20 htb rate 64kbit ceil 128kbit
$TC filter add dev imq0 parent 1:0 prio 1  protocol ip handle 2 fw 
flowid 1:20




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Re: [LARTC] Shaping the sum of incoming and outgoing traffic

[Catalin(ux aka Dino) BOIE]

> Hello,
Hello!

See also http://www.docum.org/docum.org/faq/cache/69.html

I cannot found one example on the new but maybe you have time to figure 
out how it works.

---
Catalin(ux aka Dino) BOIE
catab at deuroconsult.ro
http://kernel.umbrella.ro/
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