On Fri, 14 Jul 2000, Cito Maramba wrote:
> On Fri, 14 Jul 2000, Ian C.Sison wrote:
>
> > CBQ is great for shaping bandwidth, but not conserving it. For HTTP traffic
> > shaping and caching, you've got to go with squid's delay_pools. With this you
> > actually have that same amount of control which is much more configurable IMHO,
> > and scalable. However, you're only doing limits to HTTP/FTP traffic with this.
> > For the napster enabled networks, policies have to be enforced with CBQ.
>
> You'd probably also need to employ transproxy and ipchains with port
> redirection for ports 80 and 20/21, to make sure that hosts don't
> circumvent squid by simply not using it.
That's right. And you must also use DHCP to set the default route of the
workstations on the network to point to the shaper box. And put your
router back to back with a secondary ethernet card on the shaper box.
This way no one can access the "outside" without passing through the
policies of the shaper.
> massive download. In this case, the cbq.init script works well as a
> traffic limiter, but not as a traffic guarantor. If you want to implement
> bandwidth management so that a host is assured of a certain maximum amount
> of bandwidth at any given time, then traffic from all possible hosts on
> the Lan must be shaped.
Correct, so for shaping to work effectively, one must have a comprehensive
plan on bandwidth allocation for all networks/hosts that is under your
administrative control.
> But if anyone who doesn't have a high end cisco router wants to give
> bandwidth management a try, I still recommend cbq.init and iproute2.
> Forget shapecfg and the shaper kernel module.. it only works up to 64
> kbps...
Yup!
> Cito Maramba, M.D.
> Asst. Prof, Univ. of the Phil. College of Medicine <[EMAIL PROTECTED]>
[OT mode]
For and M.D., you sure know a lot about linux. \8) Is this part of your
curriculum? \8) And being in the medical profession, do you think
FreeMed can be deployed locally to doctors offices? How do you like the
program? We were thinking of introducing this to the local med community.
-
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