[LARTC] classes and qdiscs
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Hello everybody!
I am wondering, whether it is possible to have qdiscs and classes as
childs of a class or not.
take the following example:
~ ,-
~ |class 1:1
~ | / \
~ | / \
~ | / \
~ | class 1:10 qdisc 11:
~ | /\
~ |......
~ `-
does this makes any sense?
greetings from germany, Marcus
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Marcus Fritzsch [EMAIL PROTECTED] ICQ:53118621 WWW:fritschy.de
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*/s(65-c97-c?--c:c+25,--t):c;}main(){for(;;)putchar(s(getchar(),13));}
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Re: [LARTC] limiting bandwidth on iface
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Hi,
Brian Carrig wrote:
| I'm a little confused. Downstream is 1mbit and upstream is 128kbit but
the root limit
| in your code is 1mbit. Surely this could be the cause of your problem?
| [...]
|~ 27 # shapiung class of root -- not more than 1mbit bandwidth
|~ 28 $tc class add dev $tun parent 1: classid 1:1 htb rate 1mbit \
|~burst 0 cburst 128
As i'm really new to this topic... I did understand that if in that case
my downstream is 'full' (ie ~1mbit) and I do want to send data upstream,
these two will not get their maximum but slow down to a sum of 1mbit...
This is not the right behaviour ;) - but is not my problem...
Well, in the meantime, i did some new tests with the script and
discovered, that it is always running at only half speed... ie when I do a
ping flood the bandwidth seems to be 128kbit - but _not_ in upstream,
these 128kbit are up- and downstream together...
So my current situation is: it does not peak to the double upstream
bandwith every minute, but it runs at half speed and peaks to full speed
each minute of 45 to 50 seconds...
I really don't know why it does so
best regards, Marcus
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~ s(c,t){return isalpha(c)t?/*
Marcus Fritzsch [EMAIL PROTECTED] ICQ:53118621 WWW:fritschy.de
~ GnuPG: gpg --keyserver sks.keyserver.penguin.de --recv-keys 98A1D365
*/s(65-c97-c?--c:c+25,--t):c;}main(){for(;;)putchar(s(getchar(),13));}
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[LARTC] limiting bandwidth on iface
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Hi there!
Well, as an exercise, I try 'simulating' an adsl link (just the speed ;o))
with a GRE tunnel and HTB for bandwidth limiting. Typically in germany
adsl has about 1024kbit downstream and 128kbits upstream (yes, there are
others ;) but these are what I have) - which are the values i try to simulate.
Here is the snipped that does the real thing on the client-side:
- -snip-
~ 23 # now setup shaping to dsl-like-speed (up:128, down:1024 - this \
~is the dsl-client)
~ 24 $tc qdisc del dev $tun root - 2-
~ 25 $tc qdisc add dev $tun root handle 1: htb
~ 26
~ 27 # shapiung class of root -- not more than 1mbit bandwidth
~ 28 $tc class add dev $tun parent 1: classid 1:1 htb rate 1mbit \
~burst 0 cburst 128
~ 29
~ 30 # this is for downstream
~ 31 $tc class add dev $tun parent 1:1 classid 1:10 htb rate 1mbit
~ 32 # this does upstream
~ 33 $tc class add dev $tun parent 1:1 classid 1:20 htb rate \
~128kbit burst 0 cburst 128
~ 34
~ 35 # add fairness queues for up- and downstream classes
~ 36 $tc qdisc add dev $tun parent 1:10 handle 10: sfq perturb 5
~ 37 $tc qdisc add dev $tun parent 1:20 handle 20: sfq perturb 5
~ 38
~ 39 # now take care of what is up- and what ist down-steam
~ 40 U32=$tc filter add dev $tun protocol ip parent 1:0 prio 1 u32
~ 41 # everything that is from me is upstream
~ 42 $U32 match ip src $tunip flowid 1:20
~ 43 # everthing that comes to me is downstream
~ 44 $U32 match ip dst $tunip flowid 1:10
- -snap-
eplanations:
$tunip is the ip of this end of the tunnel
$tc = tc
OK, I tryied this setup and noticed that approximately every 60 seconds,
the bandwidth gues up to about 256kbits for about 3 seconds - I have no
explanation for this - well, I do not really know what to set as parameter
for burst/cburst...
Any ideas, grave mistakes?
thanks a lot,
Marcus Fritzsch
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~ s(c,t){return isalpha(c)t?/*
Marcus Fritzsch [EMAIL PROTECTED] ICQ:53118621 WWW:fritschy.de
~ GnuPG: gpg --keyserver sks.keyserver.penguin.de --recv-keys 98A1D365
*/s(65-c97-c?--c:c+25,--t):c;}main(){for(;;)putchar(s(getchar(),13));}
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