LARTC - Dec 2001 - CBQ

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.

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

-- 
http://www.PowerDNS.com          Versatile DNS Software & Services
Trilab                                 The Technology People
Netherlabs BV / Rent-a-Nerd.nl           - Nerd Available -
''SYN! .. SYN|ACK! .. ACK!'' - the mating call of the internet