Dear All,
Would you guy have any advices concerning how to get some data like
queue length, pkt size, and so forth, from the running queue.
Queue len, bytes, bps, pps, packets can be obtain by using libnetlink.
What do you mean by pkt size? An average or something for every packet?
Right now, I
On Tue, 13 Jul 2004, Sipat Triukose wrote:
Dear Catalin BOIE,
Thank you very much for your advice. I might want to collect pkt size of
all pkt ever enqueue during a period of time. Would you mind please give
me more detail regarding how to use libnetlink or direct me to any
helpful sources. Thank
On Tue, 13 Jul 2004, Adam Towarnyckyj wrote:
First off, no need to be rude. I read the documentation; I just missed
the number limit.
Second, I know it's in hex and that's what I'm using.
Third, the script is rather large. I didn't want to post even a snippet
because it is so big. But, if that's
I've a local LAN consisting of about 150 machines. I'm using a Linux machine
as the gateway machine which inturn connects to two different ISPs. My
question is can a Linux based machine match the performance of a hardware
based routers provided by Cisco,... OR is my decision to go for a Linux
On Tue, 6 Jul 2004, jamal wrote:
On Mon, 2004-07-05 at 22:49, David S. Miller wrote:
I'm going to hold off on Stephen's patches until Jamal and he has
a chance to fight it out :-)
Actually i would be fine with it if Stephen gets rid of the new rate
thing.
I expect that duplicates of packet will
On Wed, 6 Jul 2004, jamal wrote:
On Tue, 2004-07-06 at 12:09, Stephen Hemminger wrote:
Your examples made me think about this more. The netfilter seem best
suited to things that effect the flow of packets (dropping, reordering,
even corrupting), and the qdisc seems best when the timing needs to
On Fri, 2 Jul 2004, Glen Mabey wrote:
I'm getting the following error/warning at some point in my config
script, and I'm not sure which class it is referring to.
htb: class 10007 isn't work conserving ?!
What qdisc is attached to this class?
I [think I] understand that htb is a non-work-conserving
Yes, that's what I was trying to ask below. I'm still trying to figure
out which class (in the qdisc:classid format) the error message is
referring to.
It's about class 1:7.
So, since I'm not sure which class it is (and I have several htb
qdiscs; oh, I just realized that I neglected to mention
Hi Rotger.
Just some quick points:
- maybe you should check for other executables. It turned out I had ip and tc
in /sbin and they were first in the path so /usr/sbin/tc never ran. Maybe you
can do a loop prior to installing and delete whatever which tc and which
ip return until they return
I seem to remember a kernel module for slowing down a link for testing?
Can't remember the details, but I saw it in my 2.6 kernel somewhere. Perhaps
check the docs on that.
Yes, it's Stephen's sch_delay. Both 2.4 and 2.6 versions available.
Just run the 2.4.26 or 2.6.7 and last version of
dst 1.2.3.4/24 flowid 1:4
or
tc filter add dev eth1 parent 1:0 protocol ip u32 ht 3:04: order 1 \
flowid 1:4
Catalin BOIE ([EMAIL PROTECTED]) wrote:
Is there a relation between the hashtable ID /(parent,handle) so that if I used 2:
for a hash table I could or couldn't use 2: for a (parent
Is there a relation between the hashtable ID /(parent,handle) so that if I used 2:
for a hash table I could or couldn't use 2: for a (parent,handle)ID?
No relation. You can use the same id for both.
I also noticed that you type the hashtables like 2:2: can you have more levels with
this? like
I have a question about a few things:
ok when you have parent x:x and handle x:x link x:x flowid and so on. What is the
max values of each of these, also where these or some of these hex numbers? I tried
this on redhat 7.3 so there may have been some updates, but this is one of the tests
I did.
On Tue, 22 Jun 2004, [EMAIL PROTECTED] wrote:
does someone have expirience with HTB and kernel 2.6.5 and up...
Does anyone have tested it with thousand of classes and filters..
How it behaves..
Depends on how many filters/classes, how much traffic. If you have a lot
of filters, you must use
Hello!
I like to announce sch_ooo, a new queue discipline that, attached to a
class (or a device, as root) reorder the packets that pass by delaying
some.
Example:
tc qdisc add dev eth0 root ooo limit 100 gap 4 wait 1100
This queue will create a pfifo with limit 100 and will delay
every 4th
On Tue, 22 Jun 2004, Stephen Hemminger wrote:
Maybe the delay and ooo scheduler should be merged, the both do sort of
the same thing.
Yes, it's true.
I can work on a patch if you want.
---
Catalin(ux aka Dino) BOIE
catab at deuroconsult.ro
http://kernel.umbrella.ro/
On Mon, 21 Jun 2004, Vinu Chandran wrote:
Hi all
Can anybody pls explain me the difference between classid and flowid. In which scenario we may need to use either of one. Any help will be greatly appreciated.
They mean the same thing.
regards
Vinoos.
tc class add dev eth1 parent 10: classid 10:$variable cbq bandwidth
200Mbit rate 512Kbit allot 1514 prio 5 maxburst 20 avpkt 1000 bounded
That's just an example. My problem is I'm guessing the $variable is not
allowed to be anything over . I'm getting an error when I run that
command with
On Fri, 4 Jun 2004, Thierry Coutelier wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hello,
We got the following message on the console of one of our server:
~ HTB: dequeue bug (8,12140714,12140714), report it please !
The server is a Dell Poweredge with 2 CPUs running a 2.5.25 Kernel.
It
Exactly - I'm just trying to find out what kind of traffic doesn't get matched
by my other filters and therefore is responsible for the few kbps going to my
default class.
I tried to match the traffic with the most general filter rule I could imagine
(see above) - but there's still traffic
On Tue, 6 Apr 2004 [EMAIL PROTECTED] wrote:
Hi i have 2 class C 80.97.103.0/24 and 81.180.12.0/24 but i dont konw how
to set hashing tables for HTB
tc add dev eth0 parent 1: prio 0 handle 1: protocol ip u32 divisor 256
tc add dev eth0 parent 1: prio 0 protocol ip u32 match src 80.97.103.0/24
On Fri, 26 Mar 2004, Pascal OFFREDO wrote:
Hi,
I'd like to create a high latency link between 2 machines ( more than
700 ms round trip) for simulation purpose.
Is it possible to do that with linux qos management software ?
Yes, it is possible.
Check latest rc from 2.4 or 2.6. It contains
Dear All,
I am trying to get src and dest IP from packet send from IP to TC via
struct sk_buff *skb;
In enqueue function in sch_myqueue, I get my IP like this
struct iphdr* iph=skb-nh.iph;
printk(KERN_ALERT %u::%u\n,iph-saddr,iph-daddr);
but it turned out to be that I always get the
Hello,
I'm having some problems using HTB to prioritize traffic on my linux
router.
The main problem is as follows:
I have a 6Mbits channel on the metropolitan network and a 64kbps link
for the sites outside my country.
These 64kbps are dynamically allocated by my ISP so I
On Tue, 11 Nov 2003, Peter Nelson wrote:
Ok, I'm pretty new at this and am probably in a bit over my head, but I
was looking for some pointers. I want to classify and then prioritize
traffic based on if it is to an Internet2 host, a host on campus or the
general internet. I got a dump from
what I wright is
tc qdisc del dev eth0 root
tc qdisc add dev eth0 root handle 1: htb default 20 r2q 100
tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbit ceil 100mbit
tc class add dev eth0 parent 1: classid 1:2 htb rate 1mbit ceil 10mbit
tc class add dev eth0 parent 1:1 classid
What ip isn't shaped right?
---
Catalin(ux) BOIE
[EMAIL PROTECTED]
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I think you can use ingress + policy + ds to mark packets (DSCP IP field)
on eth0 and eth2. Then on eth1 you can classify base on this field.
Could you give me an example of how this could be done? The DSMARK
documentation that I have found is a bit difficult. I can't find any
examples of
On Sat, 11 Oct 2003, Kristiadi Himawan wrote:
I want to try to shape 20-30Mbps traffic using HTB.
It's possible? Anyone already try this?
Yes. It's working very good.
You may want to use hashes if you have a lot of filters.
Thanks.
---
Catalin(ux) BOIE
[EMAIL PROTECTED]
On Thu, 9 Oct 2003, Stef Coene wrote:
On Thursday 09 October 2003 07:08, Catalin BOIE wrote:
Don't worry. It's tc fault (or maybe kernel).
It's a bug in the tc routing that displays the filters.
Thanks for clarification, Stef.
Stef
--
[EMAIL PROTECTED]
Using Linux as bandwidth
Don't worry. It's tc fault (or maybe kernel).
The filters are once in the kernel but are showed no_of_prios_used times.
On Thu, 9 Oct 2003, Victor wrote:
The difrence betwen these 2 configurations is only the prio parameter from
the second filter, from each configutation.
(tc filter add dev
On Thu, 9 Oct 2003, Niels Vorgaard Christensen wrote:
Hi.
I am working on a router with three interfaces. eth2 and eth0 are
connected to two different Internet providers. The interface eth1 are
connected to an internal network. Now I need a tc filter expression
that will determine which
On Fri, 3 Oct 2003, Abdul Hakeem wrote:
Hello,
Can anyone spare tips on setting up a UDP tunnel over a DVB-S link ? I
am toying with the idea of an IP over UDP tunnel over a simplex or
forward only DVB-S link.
Cheers,
Abdul Hakeem
http://vtun.sf.net
Have I forgotten something, or what is the problem?
I have the exact same problem here; has anyone found the reason and/or a
fix?
Post your scripts to this list.
I use 2.4.22 here. I worked with 2.4.20.
--
Mvh. / Best regards,
Steen Suder http://www.suder.dk/
ICQ UIN
Who can share his opinion on this matter?
Me? :)
Section 15.3 in the Cookbook presents a way of using tc for rate
limiting ICMP.
It can also be done using the --limit feature in netfilter.
What are the pros and cons of both approaches? Or should they be
combined somehow?
You can
On Fri, 5 Sep 2003, Andreani Luca wrote:
is 64kbit/sec enough for VoIP ? I would have thought not.. but I do not
have VoIP...
Steve, what voip codec do you use?
If you can select, use G723 (6.3 kbit/s)
/steve
---
Catalin(ux) BOIE
[EMAIL PROTECTED]
How does the bandwidth management relates with the proc file system?
What do you mean?
There is nothing in proc to get statistics, if this is what you want to
ask.
Can anybody suggest?
regards,
Srikanth.
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please send me your config and lemme compare the same against
mine.
I have main in a database. I cannot give it to you, but trust me that are
5 filters.
Try to use hashes to reduce the kernel pressure.
Trevor
On Tue, 2003-06-24 at 15:49, Catalin BOIE wrote:
On Tue, 24 Jun 2003, Trevor
Unknown qdisc htb, hence option default is unparsable
**HTB: failed to set root qdisc on eth0!
[EMAIL PROTECTED]:/etc/sysconfig/htb# lsmod
Module Size Used byNot tainted
sch_htb21120 0 (unused)
cls_route 5560 0 (unused)
cls_u32
On Tue, 24 Jun 2003, Trevor Warren wrote:
Can some one please confirm which would be the best place to clarify
these U32 issues and 2048 U32 filter limitations as i had posted in my
previous mail.
Trevor
We have 5 filters and still working.
I don't think there is a limit.
--
( -
I have a 2 tree configuration. Here is an example script:
#!/bin/bash
tc=/sbin/tc
$tc qdisc del dev eth0 root
$tc qdisc add dev eth0 root handle 1: htb default 30
$tc class add dev eth0 parent 1: classid 1:1 htb rate 100Mbit
$tc class add dev eth0 parent 1:1 classid 1:10 htb rate 40Mbit
Hello!
Seems that if I add two filters in a hash node, prio doesn't matter
anymore.
It's a known bug?
Long story:
If I do this:
echo ** jumptables...
echo *** 800: link 1:
$tc filter add dev $dev parent 1: prio 1 u32 match ip nofrag hashkey mask 0xff00
at 16 link 1:
echo
Hi!
Can somebody explain to me why there are qdisc_sleeping and
qdisc_list beside qdisc in net_device structure and what are these useful
for?
Thank you very much!
---
Catalin(ux) BOIE
[EMAIL PROTECTED]
H323: dino.rdsbv.ro
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Then I decided to mark all outgoing SMTP packets with fwmark 1 (marked
using iptables). I've marked them like this:
iptables -t mangle -A OUTPUT - p tcp --dport 25 -j MARK --set-mark 1
I have, then, added a rule pointing to alternative routing table:
ip rule add priority 15000 fwmark 1
On Wed, 15 May 2002, Martin Devera wrote:
Date: Wed, 15 May 2002 15:11:09 +0200 (CEST)
From: Martin Devera [EMAIL PROTECTED]
To: Catalin BOIE [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: [LARTC] htb_change sfq_change
:) You can drop recreate it safely. User will
not see
to change on the fly r2q to see how the traffic flow changes.
But I don't want to delete the whole tree just to change some parameters
on the root class.
devik
On Fri, 10 May 2002, Catalin BOIE wrote:
On Thu, 9 May 2002, Martin Devera wrote:
Date: Thu, 9 May 2002 12:29:00 +0200 (CEST
OK.
But for SFQ?
what do you want to change in sfq !!??
perturb and quantum on-the-fly.
devik
---
Catalin(ux) BOIE
[EMAIL PROTECTED]
http://www2.deuroconsult.ro/~catab
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Hello!
Seems that whatever I set for prio for a htb class it is always set to 3.
Example script:
ifconfig dummy1 up
ifconfig dummy1 200.200.200.200 netmask 255.255.255.248
tc qdisc del dev dummy1 root
tc qdisc add dev dummy1 root handle 2: htb
tc class add dev dummy1 parent 2: classid 2:1 \
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