Displaying 20 results from an estimated 3000 matches similar to: "A Question On CBQ"
2004 Dec 23
3
About Diffserv on linux!
Hello,
This is a question about diffserv on linux. We know, there is a file sch_dsmark in
linux source code. Now, i want to add something in the function dsmark_enqueue,
for
example, i want to add a function which can add a class and queue automately in
dsmark_enqueue. That is, not using the command tc. After adding one, it works
well, but
when add the second one, there is a kernel panic:
2002 Sep 06
6
questiona about CBQ algorithm in Linux
Hi Stef and Alexey
I have read some documents about CBQ algorithm from http://www.icir.org/floyd/cbq.html
but still have some question about CBQ in Linux
.
1. First estimator can estimate how much bandwidth already USED per class. one estimating algorithm is EWMA (exponential weighted moving average), how about Linux implemenatation about estimator?
also do you have link for this algorithm? I
2005 Jan 04
4
Scheduler Mechnisms!
Hello,
Normally, in addition to such qdisc scheduler mechanisms as FIFO, PQ, WRR, WFQ,
are there any more? Then, there is a confusion on scheduler in Linux enviroment:
Assume there is a qdisc, such as RED as a leaf qdisc in a router, we know, if
there is packet which want to enqueue the packet, the Function red_enqueue is
called, but when the packet leave the queue(when the Function red_dequeue
2004 Apr 08
0
How to DSMARK locally generated traffic and then apply AFHTB?
Hi fellow traffic-shapers,
I am implementing a Diffserv CORE router using Linux kernel 2.4.18. I used
this excellent website (http://www.opalsoft.net/qos/DS-38.htm) using AFHTB
as a starting basis for my EGRESS diffserv implementation - and all works
great so far!!!
But my project has an additional requirement. There are services running
locally on the router which are sending/receiving IP
2006 Jan 06
1
Wondershaper and DSCP
Did anyone ever answer this one? THIS is what I am trying to do:
>[LARTC] cbq+sfq and DSCP marking
>Maria Joana Urbano stmaria@dei.uc.pt
>Thu, 13 Feb 2003 19:29:42 +0000
>
> * Previous message: [LARTC] Monitoring....
> * Next message: [LARTC] two routes 1 network card
> * Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
>
2006 Jan 08
1
unexpected drop
Hello everybody,
I have a Linux router with an ethernet adapter and a ADSL device.
My router has a GRE tunnel connected to a remote IP address.
Using "tc" I have configured 3 different classes:
1. 290kbit rate (used for Voip Services)
2. 180kbit rate (used for GRE tunnel)
3. 80kbit rate (for generic data traffic)
For each class, using "iperf", I send some data from a PC
2009 Jul 20
0
No subject
honored by DSCP (first 5 bits)- even old equip should be DSCP
"compatible"...or I need to do more reading :)
-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Dave Fullerton
Sent: Thursday, October 01, 2009 3:01 PM
To: Asterisk Users List
Subject: Re: [asterisk-users] QOS/DSCP for IAX?
Michelle
2004 Dec 26
0
Something about diffserv!
Hello,
As we know that there are four kinds of AF in diffserv architecture, and each kind
has three different priorities. So, there are 12 different kinds of AF, is it
right? Of course, each AF has its recommended DSCP value. Then, we know the AF is
classified into four differnt classes, such as AF1, AF2, AF3, and AF4. But in a
Diffserv domain, and in the core router, there will be a classifier
2004 Jun 13
0
DSCP marking at core
Hi,
I want to setup core routers to do both DSCP marking
and to get the DSCP and forward packets based on DS
field. I don''t want to separate DSCP marking to be
done only at the edge routers.
I know that dsmark is both used for DSCP marking and
for getting the DSCP and forwarding packets according
to DSCPs. In my case, since I want to do both of these
I need two dsmarks.(?) I am not
2002 Jun 19
1
Problem: DSCP target
Hello everybody,
I have tried several iptables versions (from 1.2.4 to 1.2.6a) to
mark outgoing packets (change the DSCP field) with no success.
#iptables -A OUTPUT -t mangle -d 10.0.0.3 -j DSCP --set-dscp 0x2
iptables v1.2.6a: unknown arg ''--set-dscp''
TOS target is working fine, but I want to create different codes
for EF and AF classes in a diffserv
2003 Jun 18
0
Re: LARTC digest, Vol 1 #1233 - 16 msgs
Andrew:
Differentiated Service on Linux HOWTO (work in progress) could be of some
help for you.
Have a look at http://opalsoft.net/qos
Best regards,
Leonardo Balliache
>Message: 6
>From: "Burnside, Andrew" <Andrew.Burnside@thalesgroup.com>
>To: "''lartc@mailman.ds9a.nl''" <lartc@mailman.ds9a.nl>
>Date: Wed, 18 Jun 2003 13:24:44
2003 Jun 18
0
DiffServ Marking
I am trying to compare the behaviour of the Linux DiffServ implementation
with that of Cisco, in DSCP remarking for traffic policing.
As I understand it, the DSCP is marked at the egress interface (parent
queue), based on the class that packets are in.
I am looking at what happens at an inter-AS boundary.
DSCP marked traffic coming into the Edge Router need to be policed and
remarked:
e.g. EF
2023 Nov 18
0
[Bug 3634] New: IPQoS default should be changed to "none"
https://bugzilla.mindrot.org/show_bug.cgi?id=3634
Bug ID: 3634
Summary: IPQoS default should be changed to "none"
Product: Portable OpenSSH
Version: 9.5p1
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P5
Component: Miscellaneous
Assignee:
2005 Oct 29
0
Mangling TOS, or Precedence/SecurityOpts/Compartment?
Hi there LARTC,
We are running a set of three systems for semiconductor technology, and
would like to finalize our work in getting them to interoperate properly,
but have run into some issues that touch on the very fabric of TCP/IP
expertise.
Iptables has already been used to solve "part of this", can we somehow use
Diffserv capabilities to acheive the aims of modfiying packets such
2001 Jan 17
0
dscp marking
I want to set the DSCP field of the incoming packets. And then put them
in the correct queues.
I can mark the packets:
iptables -A OUTPUT -t mangle -d 10.10.10.12 -j MARK --set-mark 1
tc qdisc add dev eth0 handle 1:0 dsmark indices 64 set_tc_index
tc class change dev eth0 classid 1:1 dsmark mask 0x3 value 0xb8
tc filter add dev eth0 parent 1:1 protocol ip prio 1 handle 1 fw
2010 Feb 06
1
TOS bits, DSCP, Asterisk & Polycom
Has anyone figured this out yet?
Lots of places say to add the following
to sip.conf of an Asterisk 1.2 system
(current production machine/Asterisk as root):
tos=0xB8
(Hex B8 = Decimal 184 = Binary 10111000)
or if you are running Asterisk v1.4 or newer:
tos_sip=cs3 ; Sets TOS for SIP packets.
tos_audio=ef ; Sets TOS for RTP audio packets.
tos_video=af41 ;
2001 Dec 07
3
more on cbq parameters
While I''m thinking about that review of howto changes, here are a few
other responses about things I don''t believe. I''ll be interested in
more info if anyone has any.
====
[from new doc]
Besides being classful, CBQ is also a shaper and it is in that aspect
that it really doesn''t work very well. It should work like this.
I''ve not noticed that it
2007 Sep 16
5
using tc to drop packets based on the diffserc or tos value
Hi all,
I am wondering if anyone can help me to resolve a problem.
I am trying to use tc command in linux to drop udp
packets of specific diffserv value.
I am able set diffserv value successfully in the udp packet
using command:-
[root@scotch src]#iptables --table mangle --append OUTPUT \
--out-interface eth0 --protocol udp --source-port 5060 \
--jump DSCP --set-dscp 8
but i am not able to
2010 May 04
0
DSCP QoS value in YeaLink phone settings
Hello list,
I need to set Voice QoS and SIP QoS for YeaLink. The possible values are
0 ~ 63.
With Grandstream I can fill in DiffServ 46, which is EF. That's what I want.
With Snom I fill in 184, which corresponds to EF or DSCP 46 (according
to their wiki)
But what value do I want to fill in with this YeaLink ???
This is a conversion table :
2002 Oct 09
0
parent and hierarchy problems with cbq.init
Hello Everyone :),
i''m using cbq.init version 7.1 for traffic shaper, the rule did work well with flat rule (without parent/child)..here the condition of my network :
- have a DMZ (and i not want the traffic to DMZ be bounded)
- i made the CBQ engine also a bridge and i put it before NAT server (so if