[LARTC] CBQ

[LARTC] CBQ

[Tzeh Yeu Leang]

Hi,

   I have set up sth very similar to the example "efcbq" in TC. Here is my 
network setup:
[Host1]---------eth0[router]eth1----------[Host2]

I send udp traffic from Host1 to Host2, passing thru router. I run the efcbq 
code on dev eth1. After that, i run "tc -s qdisc". For each of the class 
(pfifo for EF; red for BE), there are parameters "drop" and "overlimit". For 
the drop parameter, is it supposed to mean how many packets is drop by the 
class. Eg: if i limit EF to be 3Mbps, and i send 4Mbps, shouldn't i supposed 
to see some number in the drop parameter? But i only see zero for the drop 
parameter. Another thing, for the paramter "sent 10000 packets" shown, does 
it mean that i should also receive 10000 packets in Host2? I have packet 
loss from router to Host2. So, in Host2 i do not get 10000 packets. Any 
advice?

How do you guys graph in order to get statistics like delay and throughput? 
Which software, at the router or Host2 side?

Thanks in advance.



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[LARTC] CBQ

[Luiz C. Spies]

		
	Hi everyone, i use CBQ to limit my bandwidth and works, but sometimes when 
the traffic is very hard, the CBQ generates delay, 2000 MS 3500MS  and my 
clients, don't have internet, because de delay is very hight this problem 
have a solution, i try use redhat 7.1 with kernel 2.4.5 iptables nat and all 
features i need to router firewall, and masquerade, the kernel works good the 
squid to, but de CBQ not, i learn a little of CBQ and my CBQ are using TBF 
module, i think is this module generate a delay if someone know the answer of 
my problem, send to me the solution or the cause of delays....



Thank's


Luiz

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Re: [LARTC] CBQ

[Wingtung.Leung]

On Fri, 29 Jun 2001, Luiz C. Spies wrote:

> 	Hi everyone, i use CBQ to limit my bandwidth and works, but sometimes when
> the traffic is very hard, the CBQ generates delay, 2000 MS 3500MS  and my
> clients, don't have internet, because de delay is very hight this problem
> have a solution, i try use redhat 7.1 with kernel 2.4.5 iptables nat and all
> features i need to router firewall, and masquerade, the kernel works good the
> squid to, but de CBQ not, i learn a little of CBQ and my CBQ are using TBF
> module, i think is this module generate a delay if someone know the answer of
> my problem, send to me the solution or the cause of delays....

I think the high delay is normal because of your limit. What is your rate
limit? If your clients would try to push 10Mbit, but the limit is set to
100Kbit, you can expect to have the delay increased extremely.

Please try to explain your setup in more detail and tell what you really
want to achieve.


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Re: [LARTC] CBQ

[Wingtung.Leung]

On Fri, 29 Jun 2001, Luiz C. Spies wrote:

> 	Ok i work in a ISP all my clients are company's ok? i put a server LINUX in
> my client's and i share  INTERNET  with IP MASQUERADE, but my clients user
> full bandwidth i need limit de internet traffic, ok?  not the internal
> traffic, Internet TRaffic only  uderstand??? please give a idea to resolv
> this problem, what you sugest??

(Please quote only relevant parts and type your message below the quote.)

The basic idea to solve it is to create two seperate classes, one for
internal traffic and the other one for internet traffic. If you need to
limit both downstream as upstream, you need to create those classes on
both your interfaces.

Then use the tc general filter to redirect the packets into the correct
class depending on the source or target address.

Please study the setup in the HOWTO and read through the mailing list
archive, there have been a few messages about masquerading + traffic
control in the last months.


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[LARTC] CBQ

[Khaled Eshah]

Hi
Here is our problem : 
                        ______________ 
                  eth1 |              | eth0
       INTERNET--------| LINUX router |---------- LAN  
                       |______________| 

we want to allow our LAN users to use only 128Kbit (16KB/s) of our total bandwidth.    
I'm using these rules to do that :

tc qdisc add dev eth0 root handle 10: cbq bandwidth 10Mbit avpkt 1000
tc class add dev eth0 parent 10:0 classid 10:200 cbq bandwidth 10Mbit rate 128Kbit allot 1514 weight 12Kbit prio 5 maxburst 20 avpkt 1000 bounded
tc qdisc add dev eth0 parent 10:200 sfq quantum 1514b perturb 15
tc filter add dev eth0 parent 10:0 rotocol ip prio 3 u32 match ip dst 192.168.1.0/24 flowid 10:200
but when I'm teting these rules by downloading some files to our LAN, The traffic always begins with a high traffic ~100KB/s for several seconds then the traffic dropped to the desired level 16KB/s
I also notice when I'm doing several ftp's the traffic exceeded the desired level by a liitle KB/s
How can resolve this ? 








 

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[LARTC] CBQ

[Alexandre M. Mello]

[-- Attachment #1: Type: text/plain, Size: 1363 bytes --]

I am a user of CBQ that have bean proving to be an excellent software for
 traffic control, I am having a difficulty to implement the following case:



 [INTERNET]
          |
       512
          |
     (eth1)
[computer 1](eth2)<<---(eth1)[computer2](eth0)<<--{B1}
     (eth0)              \\---- (eth1)[computer 3](eth0)<<--{B2}
       {A}                \\--- (eth1)[computer 4](eth0)<<--{B3}
                               \\-- (eth1)[computer 5](eth0)<<--{B4}




 The computer with CBQ has 3 interfaces:

 The eth1 is connected to the Internet in a 512k link

 The eth0 is linked to a network(A):
 - 10.0.0.0

 The eth2 (10.0.1.1) is linked to the other network (B):
 - 10.0.1.0

 The network B possesses 4 computers (10.0.1.2, 10.0.1.3, 10.0.1.4,
10.0.1.5)
 that sustain each one its own network respectively:
 - (B1) 10.0.2.0
 - (B2) 10.0.3.0
 - (B3) 10.0.4.0
 - (B4) 10.0.5.0

 I would like to configure CBQ to balance the traffic in at the 5 networks
 (A, B1, B2, B3 and B4) and still borrow the remaining band for the nets
that
 are using.

 For example, if the net B4 is alone in a certain moment, it will have a
512k
 link, if the net B3 begin to use the Internet both they will have 256k and
 if all begin, all will have 102k.


 Thank you very much for your attention in reading this e-mail and for any
 help that could give me.

 Alexandre.






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Re: [LARTC] CBQ

[bert hubert]

On Thu, Dec 06, 2001 at 12:36:18PM -0200, Alexandre M. Mello wrote:

> I am a user of CBQ that have bean proving to be an excellent software for
>  traffic control, I am having a difficulty to implement the following case:

I think you just resent your message. This is not the way to get more
attention. 

>  [INTERNET]
>           |
>        512
>           |
>      (eth1)
> [computer 1](eth2)<<---(eth1)[computer2](eth0)<<--{B1}
>      (eth0)              \\---- (eth1)[computer 3](eth0)<<--{B2}
>        {A}                \\--- (eth1)[computer 4](eth0)<<--{B3}
>                                \\-- (eth1)[computer 5](eth0)<<--{B4}

(...) 
>  I would like to configure CBQ to balance the traffic in at the 5 networks
>  (A, B1, B2, B3 and B4) and still borrow the remaining band for the nets
> that
>  are using.

>  For example, if the net B4 is alone in a certain moment, it will have a
> 512k
>  link, if the net B3 begin to use the Internet both they will have 256k and
>  if all begin, all will have 102k.

Define 'alone'. That is the hard part of your question, telling us exacly
what you want. Basically you want 2^5 configurations:

00000:	nobody 'active'
00001:  only B4 active
..
11111:  everybody active

You need some kind of script to determine activity, and chose the right
configuration.

But do you really want this? I would suggest a HTB configuration whereby you
guarantee everybody 102K, and put the ceiling at 512kb. This way, all
bandwidth is available, but everbody gets a least 102kbit/s.

Regards,

bert

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[LARTC] CBQ

[Netrepreneurs]

Hello

I have been trying to download CBQ but cant seem to
find a valid link. From what i know this is the right place 
but i cant seem to get in to the ftp site are there any
other URL's that i can get it from? 

ftp://ftp.equinox.gu.net/pub/linux/cbq/

All assistance is appreciated.


Glen Young

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Re: [LARTC] CBQ

[Stef Coene]

On Friday 17 January 2003 10:11, Netrepreneurs wrote:
> Hello
>
> I have been trying to download CBQ but cant seem to
> find a valid link. From what i know this is the right place
> but i cant seem to get in to the ftp site are there any
> other URL's that i can get it from?
>
> ftp://ftp.equinox.gu.net/pub/linux/cbq/
>
> All assistance is appreciated.
Do you mean cbq.init ?
https://sourceforge.net/projects/cbqinit

Stef

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[LARTC] cbq

[Paras pradhan]

hi :


On one of my severs i have a shoutcast audio streaming server running at
ports 8000 and 8001.

Now my cbq rule in my gateway is as:

DEVICE=eth1,100Mbit,10Mbit
BOUNDED=yes
ISOLATED=yes
PRIO=5
RATE=2Kbit
WEIGHT=2Kbit
RULE=:8000,x.x.x.3
RULE=:8001,x.x.x.3

--

Now my question is, do the ppl from internet cannot cross the limit 2Kbit
of my uplink.


What i want is: for example:
I don't want the streaming  eat my uplink bandwidth more than 2Kbit.

What i have do?


Thanks
Paras pradhan
Systems Dept.
Bajranet PVT LTD
Kathmandu
Nepal.


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Re: [LARTC] cbq

[Stef Coene]

On Sunday 21 September 2003 12:50, Paras pradhan wrote:
> hi :
>
>
> On one of my severs i have a shoutcast audio streaming server running at
> ports 8000 and 8001.
>
> Now my cbq rule in my gateway is as:
>
> DEVICE=eth1,100Mbit,10Mbit
> BOUNDED=yes
> ISOLATED=yes
> PRIO=5
> RATE=2Kbit
> WEIGHT=2Kbit
> RULE=:8000,x.x.x.3
> RULE=:8001,x.x.x.3
>
> --
>
> Now my question is, do the ppl from internet cannot cross the limit 2Kbit
> of my uplink.
>
>
> What i want is: for example:
> I don't want the streaming  eat my uplink bandwidth more than 2Kbit.
>
> What i have do?
2kbit is too low to shape.  Is eth1 your uplink?

And you use the cbq.init script.  This is not the mailing list for the 
cbq.init script.

Stef

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[LARTC] cbq

[James Lista]

buddies,

I am totally newbie to band control...  I created a shell script that
generates cbq files like below (for example, someone in my lan with IP
172.16.7.72).
my question is:  is the file name format and are the lines below right to
limit band for this one with this IP ??  ( I read cbq.ini 0.7.3.. and cannot
understand it well)..

thanks for you attention

----------------------------------------------------------------------------
--------------

----> cbq-072.out-72
DEVICE=eth0,10Mbit,1Mbit
RATE2kbit
WEIGHT=3Kbit
PRIO=5
RULE\x172.16.7.72/32,
BOUNDED=yes
ISOLATED=yes

----> cbq-072.in-72
DEVICE=eth1,10Mbit,1Mbit
RATE2kbit
WEIGHT=3Kbit
PRIO=5
RULE\x172.16.7.72/32
BOUNDED=yes
ISOLATED=yes

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Re: [LARTC] cbq

[Marcin Sura]

Witam

Friday, October 1, 2004, 2:35:16 PM, you wrote:

> I am totally newbie to band control...

If you are newbie, then better focus on htb or hfsc. CBQ is very
unfriendly, specially for newbies :) (And that's a reason why i'm
using htb :) )

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Re: [LARTC] cbq

[zytek]

Dnia pi±tek 01 pa¼dziernik 2004 14:35, James Lista napisa³:

[...]

remember, that when you are shaping traffic on your link to your ISP (host's 
upload) then you cannot use it's IP because it has been already NATed.

try marking packets outgoing from this IP with iptables and then shape it 
using MARK value in htb/cbq.init

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