Wireshark, netperf and sctp problem

[jhell]

On Fri, 19 Feb 2010 02:27, frank.schuster01@ wrote:
> Hi Michael,
>
> yeah, I see dropped packages.
> But did you mean only that wireshark didn't capture all packages on ubuntu?
> Or did you mean that the packages will be really dropped by the kernel?
>
> Because I think it's the first one, can I display the dropped packages - is there any configuration for wireshark?

Yes, Menu: Statistics -> Summary

>
> Regards
> Frank
>
>> Hi Frank,
>>
>> you might want to send both wireshark trace to me and I would have a look.
>>
>> If it is a bulk transfer, maybe the Ubuntu machine did not capture all packets.
>> The number of dropped packets is displayed when you stop capturing.
>>
>> Best regards
>> Michael
>>
>> On Feb 18, 2010, at 3:35 PM, frank.schuster01 at web.de wrote:
>>
>>> Hello,
>>>
>>> I have a problem with my little network test.
>>> I want to test sctp between ubuntu and freebsd.
>>> On ubuntu I wrote a iptables rule which delete every tenth (10) data package. Freebsd has no firewall rules.
>>> But only ubuntu sends data and freebsd only acknowledge this data (i did the test with netperf).
>>>
>>> On the sending side (ubuntu) I see in wireshark 24 data packages, and on the receiving side (freebsd) I saw 82 packages.
>>> But I can't explain, why freebsd receives more packages as delivered from ubuntu? (I have currently only one freebsd system).
>>>
>>> Any ideas or  something additional notes to help me?
>>>
>>> Is the problem by wireshark or the kernel implementation?
>>>
>>> Regards
>>> Frank
>





-- 

  jhell