LARTC - Apr 2002 - adding ingress and egress

Hi!

I''m trying to shape my traffic based on the sum of in- and outgoing
traffic,
but haven''t been able to find any hints in the HOWTO. 

What I want is, that the sum of in- and outgoing traffic does not exceed a
given limit, but that both can borrow traffic. For example when there is no
incoming traffic, outgoing traffic may use all bandwidth, but when when
there is more incoming traffic, outgoing should stay below a limit. (just
like the webserver and smtp example from the CBQ-Chapter, but either with to
interfaces or with ingress and egress bounded together)

I was already considering writing a script that checks the current traffic
total and then adjusts the numbers in the qdiscs accordingly, but I think it
would be better if I could do it with iproute2 alone, but I just can''t
figure out how.

Any suggestions?
	Arvid

If you use IMQ you can should be able to send all incoming/outgoing packets
to the same egress qdisc.You can use HTB with two classes below root qdisc,
one for incoming packets and one for outgoing packets. Just a thought but
well worth trying.

There will surly be problems though and some finetuning.
Can he use iptables to separate the incoming/outgoing packets from the IMQ
device?

I don''t even know if all steps are solvable with routing and
filtering...
anyone?

/Torgil

> Hi!
>
> I''m trying to shape my traffic based on the sum of in- and
outgoing
traffic,
> but haven''t been able to find any hints in the HOWTO.
>
> What I want is, that the sum of in- and outgoing traffic does not exceed a
> given limit, but that both can borrow traffic. For example when there is
no
> incoming traffic, outgoing traffic may use all bandwidth, but when when
> there is more incoming traffic, outgoing should stay below a limit. (just
> like the webserver and smtp example from the CBQ-Chapter, but either with
to
> interfaces or with ingress and egress bounded together)
>
> I was already considering writing a script that checks the current traffic
> total and then adjusts the numbers in the qdiscs accordingly, but I think
it
> would be better if I could do it with iproute2 alone, but I just
can''t
> figure out how.
>
> Any suggestions?
> Arvid
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>