It's implemented by a recoco Task as described in the POX manual.  Beneath 
that, there's a thread, but then... isn't there always?

-- Murphy

On May 24, 2014, at 4:04 AM, farshad tajedin <farshad.taje...@gmail.com> wrote:

> is connection to switch implemented by thread? 
> 
> 
> On Sat, May 24, 2014 at 9:26 AM, Murphy McCauley <murphy.mccau...@gmail.com> 
> wrote:
> How about disabling enough links in your topology so that it doesn't have 
> loops and then trying?  (I'm wondering if the second one has looped back to 
> where it started somehow.)
> 
> Another thought would be to wireshark all the ports of the switch where 
> you're seeing two of these packets.  Do you actually see the packet arrive 
> twice?  Leave twice?  Etc.
> 
> -- Murphy
> 
> On May 23, 2014, at 9:51 PM, farshad tajedin <farshad.taje...@gmail.com> 
> wrote:
> 
>> yes both of them are same except buffer id , i do this in mininet
>> 
>> 
>> On Fri, May 23, 2014 at 2:53 PM, farshad tajedin <farshad.taje...@gmail.com> 
>> wrote:
>> yes both of them are same except buffer id , i do this in mininet
>> 
>> 
>> On Fri, May 23, 2014 at 1:23 PM, Murphy McCauley <murphy.mccau...@gmail.com> 
>> wrote:
>> Are the packet-in messages and their payloads 100% identical?
>> 
>> Are you doing this on real hardware, or in Mininet, or... ?
>> 
>> -- Murphy
>> 
>> On May 22, 2014, at 11:13 PM, farshad tajedin <farshad.taje...@gmail.com> 
>> wrote:
>> 
>>> hi murphy 
>>> i have a path between two hosts(h1 and h2) in a data center,when i ping h2 
>>> from h1 since switches on this path have no flow entry for route icmp 
>>> packet to h2 , the edge switch that h1 connected to it(e_s1) ,send icmp 
>>> packet to controller. in controller i handle it and i add flow entry to 
>>> each switch on this path in my controller code and at last send packet out 
>>> msg to  e_s1 to forward this packet. during this action (ping h2 from h1) i 
>>> capture traffic of my network by wireshark and i see packet in msg from 
>>> e_s1 two times sends to controller that i expect packet in msg must send 
>>> once. 
>>> 
>>> 
>>> On Fri, May 23, 2014 at 4:30 AM, Murphy McCauley 
>>> <murphy.mccau...@gmail.com> wrote:
>>> I think you'll need to provide a lot more detail.
>>> 
>>> Are you saying that you're trying to proactively insert all the rules into 
>>> the switch when it connects, but you're getting packet-ins (from table 
>>> misses) anyway and you're not expecting them?
>>> 
>>> How do packet-outs factor in here?
>>> 
>>> -- Murphy
>>> 
>>> On May 22, 2014, at 5:45 AM, farshad tajedin <farshad.taje...@gmail.com> 
>>> wrote:
>>> 
>>>> i must say that i use 1.add flow message and 2.packet out message 
>>>> sequensialy 
>>>> 
>>>> 
>>>> On Thu, May 22, 2014 at 3:17 PM, farshad tajedin 
>>>> <farshad.taje...@gmail.com> wrote:
>>>> hi all
>>>> 
>>>> i have a fat-tree topology, when i ping a host from another host i found 
>>>> that first host 2 times send packet in message to controller and i dont 
>>>> know why. can anybody help me ?
>>>> 
>>>> P.S  i use  core.openflow.addListenerByName("ConnectionUp", start_switch) 
>>>> for event handling.
>>>> 
>>>> -- 
>>>> Best Regards
>>>> 
>>>> Farshad Tajedin
>>>> 
>>>> 
>>>> 
>>>> -- 
>>>> Best Regards
>>>> 
>>>> Farshad Tajedin
>>> 
>>> 
>>> 
>>> 
>>> -- 
>>> Best Regards
>>> 
>>> Farshad Tajedin
>> 
>> 
>> 
>> 
>> -- 
>> Best Regards
>> 
>> Farshad Tajedin
>> 
>> 
>> 
>> -- 
>> Best Regards
>> 
>> Farshad Tajedin
> 
> 
> 
> 
> -- 
> Best Regards
> 
> Farshad Tajedin

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