ipfw: bandwidth limiting

[Martin Schweizer]

Hello Wojciech

Sorry for the delay but in the past I was very busy. I use now the folowing:

$ipfwcmd pipe 1 config bw 80kByte/s
$ipfwcmd add pipe 1 ip from any to 192.168.10.0/24{100-254} via em1

$ipfwcmd queue 1 config pipe 1 weight 1 mask dst-ip 0xffffffff
$ipfwcmd add queue 1 all from any to 192.168.10.0/24{100-254} via em1

I expect that all hosts are targed with the ip address 192.168.10.0/24, 
from .100 to .254. Is that correct? As far as I can see it works like 
expected but I'm not 100% sure. I'm right?

Kind regards,


Wojciech Puchar schrieb:
>> [snip]
>> $ipfwcmd pipe 1 config bw 80KByte/s
>> $ipfwcmd add pipe 1 ip from any to 192.168.10.0/24{100-254} via em1
>> [snip]
>>
>> I'm not sure it works. When I do a large download which takes long and
>> anybody else want download too, this download will only get a reduce
>> bandwidth. I expect that the second download get same rate as the 
>> first one
>> (and reduce the bandwidth from the first one). Is that correct?
> 
> your example limits it all to 80kB/s but does no traffic management. so 
> it may get the same rate (half by half) or may not.
> 
> 
> do
> 
> $ipfwcmd pipe 1 config bw 80kByte/s
> $ipfwcmd queue 1 config pipe 1 weight 1  mask dst-ip 0xffffffff
> $ipfwcmd add queue 1 ip from any to 192.168.10.0/24{100-254} via em1
> 
> this will limit them to 80kB/s and perform fair-sharing based of hosts.
> 
> for example if one user on one computer will start 100 downloads, and 
> other on other computer will start 1 download, this will ensure that 
> first user will not takeover most bandwidth.

-- 
Martin Schweizer

PC-Service M. Schweizer GmbH; Bannholzstrasse 6; Postfach 132;
CH-8608 Bubikon; Tel. +41 55 243 30 00; Fax: +41 55 243 33 22;
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