I have the following question.
Is there a way to shape fairly trought one big channel two others, what I have in mind.
users <-------- [eth2]<======[eth0]<------ Internet (1Mbit/s)
|====[eth1]<------ Peering (1Mbit/s)
Now the problem, as u see there is two internet downstrams with compound speed of
2Mbit/s, the poblem is that on the eth2-egrees there should be only one
class(channel), sum of the others. Say for example all users have 100kb/s (so that we
can calculate easly). Now I want to make a compound channels so that when
internet-channels are free users can get unused speed (ceil), (on the other hand rate
calculation get very complicated if imposible 'cause it may exceed a wrapper-channel,
so that some mechanism has to be thought to do this). Here is the pseudo code :
dev eth2 {
htb(rate 2Mbit/s) {
class(rate 100kbps, ceil 150kbps);
class(rate 100kbps, ceil 150kbps);
class(rate 100kbps, ceil 150kbps);
.....
class(rate 100kbps, ceil 150kbps);
}
}
oops to metion that one of channels is national peering and the other is internet.
So as u see the compound speed can easly exceed one of the channels w/o ever touching
the second channel.. I mean that if for example all users start to dload only from the
peering channel, they will exceed easly the 1Mbit/s capacity, 'cause wrapper channel
is 2MBit/s
On the other hand if I don't put this 2mbit-wrapper I can't use ceil-functionality.
Also I can't create 2 wrapper-channels 1Mbit/s each, 'cause users has to have 100kb/s
compound speed not 100kb/s peering and 100kb/s internet, neither 50kb/s-peering and
50kb/s-internet..
The 100kb/s is divided depending on their current usage, so it is not predefined..
So the questions are - how to have total speed X divided by all channels dynamicly and
in the same time be able to use ceil-functionality.
Thanx alot in advance for your ideas
raptor
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