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Question:
Can I use the 2.4.x patch for a 2.4.y kernel or a 2.2.z patch
for a 2.2.w kernel?
Answer:
Probably yes.
End.
Question:
Can I use a patch made for some version of iproute2 for another
version of iproute2?
Answer:
Probably yes.
End
Question:
iproute2 won't compile.
Answer:
Make sure you are using a version of iproute2 which suppports your
kernel version. Also make sure that iproute2 compiles without the wrr
patch. If it doesn't http://www.google.com will probably give you the
answer on how to make it compile. Finally make sure that you patch
the kernel before you compile iproute2.
end.
Question:
iproute2 doesn't work.
Answer:
Make sure you have removed any iproute2 installed as a part of your
linux distribution. Also make sure you use the same version of wrr
for the kernel and for iproute2.
End
Question:
Is WRR scaleable?
Answer:
The time usage of WRR increases logarithmic in the number of active
users (that means yes). See next question, though.
End.
Question:
What happens if WRR sees packets from more machines than specified
in the maxclasses parameter?
Answer:
It will reuse the least recently used class.
End.
Question:
WRR doesn't compile/patch on a 2.2 kernel with the bridgeing code from
bridge.sourceforge.net.
Answer:
Remove the lines
#ifdef KERNEL22
if(skb->pkt_bridged) {
.
.
.
}
#endif
from sch_wrr.c. Note that MAC addressing mode will not work if you
do this.
End.
Question:
Does WRR work with advanced NAT features of 2.4 kernels such as SNAT?
Answer:
I think it does though I don't know the advanced NAT features of 2.4
kernels. But you probably want to use the "masq" classifying option
when creating the wrr qdisc or set MASQGRADING=y if you use
the example scripts.
End
Question:
I have two or more internet connections connected to my firewall which
are shared by the local machines in some way. Can I use WRR to shape
all these connections?
Answer:
This should be possible. For the outgoing traffic you can just attach
WRR in the ordinary way. For the incomming direction you need to mark
packets with the interface they are comming from and use this mark
to shape separately for each connection on the incomming interface. Note
that the example scripts will not do this - you will have to set it up
yourself. If you extended the example scripts in a natural way to support
this please send them to me.
End
Question
I want to give priority to special kind of traffic. How do I do that?
Answer
You use the genrel traffic control framework of linux which wrr is a part
of. Look at http://lartc.org for more information.
End.
Question:
Why do I get a "No enough space" error when I try to
create a wrr qdisc?
Answer:
The value you specified for maxclasses is too big.
End
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