Hi Robert, You can write your own kernel (using netfilter framework) module to count the number of packets received at kernel. And, with this kernel module you can have the flexibility of filtering the packets you are sending from packeth. Thanks & Regards Murali ------------------------------- Date: Sat, 2 Nov 2013 07:28:24 -0700 From: Robert Clove <cloverobert@gmail.com> Subject: Fwd: Packet Loss To: kernelnewbies <kernelnewbies@kernelnewbies.org> Message-ID: <CAEMktPXwKMEEuds9syAV4Y7DzHPQQnVoiaHMC2L=EVTJ6Up0VA@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" On Mon, Oct 28, 2013 at 5:44 PM, Kristof Provost <kristof@sigsegv.be> wrote:

On 2013-10-28 17:32:43 (+0530), Robert Clove <cloverobert@gmail.com> wrote:

...

Kind of Packets :- *UDP* How are you generating them? :-* Packeth ( http://packeth.sourceforge.net/packeth/Home.html)* kernel version : uname -r - *2.6.32-358.18.1.el6.x86_64 * Are you *SURE* you're sending 1000? - *ya checked through packeth status bar and also through ifconfig command* I have connected them through LAN cable (cat 6) back to back.

Changed cable but no use. What should i do?

Break down the problem. Get that smart switch to tell you if the packets are lost by the sender of the receiver.

Test if it's bidirectional (i.e. does it still happen if the switch the sender and receiver)?

Does it still happen if you send only 100 packets? Do you still lose 30% then, or do you lose more or less?

Perhaps try a kernel that isn't nearly five years old too.

Also, don't top-post.

Regards, Kristof

Hey Sir, I just want to know are there any driver or kernel parameters that we can adjust to get the better packet capture? Thanks