On Sat, 12 Feb 2000, you wrote:
> New as I am to this list I apologise if this already has been answered.
> My problem is as follows:
>
> In my work we shares an incoming 512 kbit leased line between 2 companies.
> To assure that one company not uses up all the bandwidth I plan to use a
> traffic shaper limited to 384 kbit for each company, which would leave at
> least 128 kbit free. I would also like to have a large squid proxy, that
> both companys could use without bandwidth restrictions. That makes it
> necessery to somehow filter the requests coming from each company (different
> subnets)and force squid to fetch the data on different ip-numbers, attached
> to each shaper-device. I havent figured out how to do this, and would like
> any suggestions and pointers. Comments and reviews of traffic-shaping also
> appreciated.
The ideal combination is ipchains transparent proxy + squid + CBQ shaping.
You will want to look up 'delay pools' which is actually bandwidth management,
squid-style. It will do most of what you want, at least for http requests (to
an extent even FTP).
Actually, the delay pools in squid and CBQ shaping in 2.2.x kernels provides
for an intersting 'fork' in bandwidth policy making, wherein ideally you want to
optimize http traffic by using a proxy server, but also want to control the
other IP protocols. Since the limit configurations are in two different areas,
the problem is having some sort of policy for CBQ shaping and squid that is
consistent with the overall bandwidth limit for each connected network.
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