Re: help on ADSL shaping

Linux Advanced Routing and Traffic Control

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> jakob@xxxxxxxxxxxxxxx wrote:
>
>>Hi
>>I have read the howto on qdisc's a few times but I cant figure out how to
>>use the shaping capabilities to serve my needs. In the village whera I
>>live we have created a wireless local network consisting of 10 houses.
>> One
>>of these houses has an ADSL connection and services this connection to
>> the
>>other houses. To gain access to the network a member must have an
>>accesspoint in client mode, the idea is that if each house has to use a
>>certain accesspoint (with a specific known ip address) to access the
>>router then it must be possible to shape the traffic so no single house
>>can dominate the out (and thus the incomming) traffic.
>>
>>The configuration:
>>
>>House with ADSL:                    A client house:
>>                        ((o))       ((0))
>>                          |           |        (Known ip)
>> ------------  eth0   ----|           |----     --------
>>|Linux router|-------| AP |           | AP |---| router |
>>| SuSE 8.2   |        ----             ----     --------
>> ------------                                    |     |
>>      |                                     ------    ------
>> eth1 |                                    | PC 1 |  | PC 2 |
>>      |                                     ------    ------
>>  __--__--__
>> | Internet |
>>  ----------
>>
>>One house might need to connect 1 PC another house 3, but I need to be
>>sure that one house doesn't swallow the whole bandwidth. Is this
>> possible?
>>
>>Best Regards
>>Jakob Simon-Gaarde
>>
>>
>>_______________________________________________
>>LARTC mailing list / LARTC@xxxxxxxxxxxxxxx
>>http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
>>
>>
> Hi,
>
> You can use the tc program, and htb qdiscs to ensure that people are
> guaranteed some bandwidth, so that one host cannot dominate the
> network.As it is the Internet link that is the weak point, you need to
> shape at the gateway.
>
> I am currently working on a script that deals out the bandwidth evenly
> amongst hosts, so that when only one host uses the link, it gets full
> speed, but if two are on it is 50/50, and so on. I hope to have it
> finished in a month or so. Maybe you can use that
>
> Also, if it is p2p traffic you are worried about, you could try the
> p2pshaper. I posted a link in a earlier post.
>
That sounds very cool (and fair :) ) how do you plan to detect how many
hosts are using the gateway? idle traffic or ping-like check? Some clients
may have a hardware router on the other end so it is allways on-line
though maybe being idle for hours.
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