similar to: [ANNOUNCE] sch_ooo - Out-of-order packet queue discipline

From: Cong Wang <amwang at redhat.com> This is a long-standing bug and reported several times: https://bugzilla.redhat.com/show_bug.cgi?id=880035 http://marc.info/?l=linux-netdev&m=136164389416341&w=2 This bug can be observed in virt environment, when a KVM guest communicates with the host via multicast. After some time (should be 260 sec, I didn't measure), the multicast

On 06/21/10 07:12, Javed Absar wrote: > Hi Tobias: > Thanks for replying . So if I understand correctly, in LLVM currently, > the Polyhedral model is being built ( LLVM IR -------> Poly Model > ----------> LLVM IR ). > This is for compile-time optimizations of loop-nests [e.g. > loop-transformations to expose parallelism or improve locality etc]. > Yes, thats great for

Avoid poisoning of the bridge forwarding table by frames that have been dropped by filtering. This prevents spoofed source addresses on hostile side of bridge from causing packet leakage, a small but possible security risk. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Index: bridge/net/bridge/br_input.c =================================================================== ---

Hi, I've been using "nlregb" routine in splus3.4, but cannot find it here in R. Is it hidden in some library? Or there is a routine equivalent to it but with a different name? I'm planning to move part of my from S to R so that I can work comfortablely at home. Any suggestion is highly appreciated. regards, Tony -- \|||/ Q o o Q ==========================oooQ= ( -

i have a question with queuing discipline " if i create many classs with sfq and cbq and ... i would like to know about qos . which queuing discipline will be chosen first. ( not use priority ) (queuing discipline) sfq---------> packet incoming packet outgoing cbq--------> Thank you .

Hi, In the GRED queueing discipline of linux traffic control, we can define around 16 Virtual Queues with different RED parameters for each one of these. As far as I think, while applying RED on each of the virtual queues, with the grio option set, quave(the average queue length) of a virtual queue with priority= n is given by the sum of the virtual queues with priority greater than n ... I have

Hello I am trying to attach pfifo_fast to af leaf htb class. But tc segmenetation faults. If I try the failing command throug strace, it shows me that the last thing tc tries to do just before the segmentation fault, is to try to open a file called "/usr/lib/tc/q_pfifo_fast.so". Of course i have tried to find worthfull information around the Internet, but haven''t found

Hi! I''m currently working on Earliest Deadline First qdisc implementation for providing delay bounded real-time services according IntServ architecture under Linux. My first step was simple EDF implementation, that is available from http://www.avalon.ru/~dketov/. If someone interesting in using EDF or just trying and testing it, please go ahead :) Any questions are welcome. Dimitry.

The following series adds 2 new flags to bridge. One flag allows the user to control whether mac learning is performed on the interface or not. By default mac learning is on. The other flag allows the user to control whether unicast traffic is flooded (send without an fdb) to a given unicast port. Default is on. Changes since v4: - Implemented Stephen's suggestions. Changes since v2: -

Hi all, I previously mailed this list explaining that I been given the task of implementing a dynamic traffic shaping scheme on an existing network. I was looking for guidance on how I should approach this but unfortunately I was unable to provide much information about the existing traffic shaping system. I have recently obtained the existing tc scripts though and was hoping someone could help

Hi , I have the problem with HTB queuing discipline.I am giving my setup below. 172.30.179.206 172.30.180.55 LAN | | WAN -----------------| LINUX WITH |-------------- 172.30.179.140 | HTB | 172.30.180.72 FTP SERVER FTP CLIENT On the LAN side i

I want to implement a new queuing discipline for the tool tc. The new queuing discipline would support the application of multiple threads on the same queue with different kinds of traffic. Each kind of packet will have its own drop probability but while calculating the average queue length, the no. of packets in the queue will be equal to the sum of the individual no. of packets(of the different

hi i tried the example given on the examples page to duplicate selected traffic like tc qdisc add dev eth0 root handle 1: prio tc qdisc add dev eth0 parent 1:3 handle 3: netem duplicate 40% tc filter add dev eth0 protocol ip parent 1:0 prio 3 u32 match ip dst 11.0.2.2 flowid 1:3 when i ping from 11.0.2.2 to this interface my machine hangs. the same thing works for drop or delay. i would

This patch adds basic Virtual Ethernet Port Aggregator (VEPA) capabilities to the Linux kernel Ethernet bridging code. A Virtual Ethernet Port Aggregator (VEPA) is a capability within a physical end station that collaborates with an adjacent, external bridge to provide distributed bridging support between multiple virtual end stations and external networks. The VEPA collaborates by forwarding all

This patch adds basic Virtual Ethernet Port Aggregator (VEPA) capabilities to the Linux kernel Ethernet bridging code. A Virtual Ethernet Port Aggregator (VEPA) is a capability within a physical end station that collaborates with an adjacent, external bridge to provide distributed bridging support between multiple virtual end stations and external networks. The VEPA collaborates by forwarding all

This patch adds basic Virtual Ethernet Port Aggregator (VEPA) capabilities to the Linux kernel Ethernet bridging code. A Virtual Ethernet Port Aggregator (VEPA) is a capability within a physical end station that collaborates with an adjacent, external bridge to provide distributed bridging support between multiple virtual end stations and external networks. The VEPA collaborates by forwarding all

I''m a new comer. I have problems using tc+htb. I run the following commands, and expect outgoing ssh flow goes into 1:11. But actually it goes into default 12. What''s wrong? tc qdisc add dev eth0 root handle 1: htb default 12 tc class add dev eth0 parent 1: classid 1:1 htb rate 1000kbit ceil 2000kbit prio 1 tc class add dev eth0 parent 1:1 classid 1:11 htb rate 100kbit ceil

Hello! I am glad to announce a patch for u32 to allow matches on nfmark. The patch is non intrusive (few lines). Why I did this? Because fw classifier cannot be used together with u32. For example, now, you cannot match a mark of 0x90 and a destination port of 80. I know you can do it with iptables to do the marking, but if you use Jamal actions to apply mark to policed packets, you need

Hello! This is the try number two. What was changed: - Added selectable choice in Kconfig file (thanks Jamal!) - Don''t abuse tc_u32_sel to not break backward compatibility (thanks Patrick!). Stephen, do you have any comments on iproute2 part? I know it''s not perfect but this is the best way, I think. "u32 match mark vvvv mmmm" it''s intuitive but breaks a

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. Right now, I modified the queue disc to print out some info I want using printk() and use syslogd to catch those info up. The problem is, in burst, syslogd can''t catch all the msg the queue sent out. Are there any standard or better way to