P.S sorry i forgot to say that please filter this pcap to ip.addr==10.0.0.1
On Tue, May 27, 2014 at 11:48 AM, farshad tajedin <farshad.taje...@gmail.com > wrote: > its pcap link: > https://www.dropbox.com/s/9964xavdbqrv27n/pingSenario > > > On Tue, May 27, 2014 at 9:50 AM, Murphy McCauley < > murphy.mccau...@gmail.com> wrote: > >> >> On May 26, 2014, at 10:18 PM, farshad tajedin <farshad.taje...@gmail.com> >> wrote: >> >> >> >> ---------- Forwarded message ---------- >> From: farshad tajedin <farshad.taje...@gmail.com> >> Date: Mon, May 26, 2014 at 9:28 AM >> Subject: Re: [pox-dev] packet in message >> To: Murphy McCauley <murphy.mccau...@gmail.com> >> Cc: pox-dev <pox-dev@lists.noxrepo.org> >> >> >> ok , this code called when a packet received to edge switch for example >> e_s1(in my scenario, h1 ping h2 and h1 connected to e_s1 ) and path >> calculated between two hosts, this code first sends add flow setup msg to >> switches on this path(line1,2,3,4,5) including e_s1 then sends packet out >> msg to e_s1 (line 6) >> >> >> 1-core.openflow.sendToDPID(int('0002'+self.ToDPIDformat(SelectOne[1]),16),self.add_FlowEntri((SelectOne[2]%(NumOfPod/2))+(NumOfPod/2)+1,str(dstIP),0x800)) >> >> >> 2-core.openflow.sendToDPID(int('0001'+self.ToDPIDformat(SelectOne[2]),16),self.add_FlowEntri((SelectOne[3]/(NumOfPod/2))+1,str(dstIP),0x800)) >> >> >> 3-core.openflow.sendToDPID(int('0002'+self.ToDPIDformat(SelectOne[3]),16),self.add_FlowEntri((SelectOne[4]%(NumOfPod/2))+1,str(dstIP),0x800)) >> >> >> 4-core.openflow.sendToDPID(int('0003'+self.ToDPIDformat(SelectOne[4]),16),self.add_FlowEntri(((int(dstNo)-1)%(NumOfPod/2))+1,str(dstIP),0x800)) >> >> >> >> 5-self.connection.send(self.add_FlowEntri((SelectOne[1]%(NumOfPod/2))+(NumOfPod/2)+1,str(dstIP),0x800)) >> >> 6-self.connection.send(self.packetOutMsg((SelectOne[1]%(NumOfPod/2))+(NumOfPod/2)+1,of.buffer_id,of.data)) >> >> >> ---------------------------------------------------------------------------------------------------------------------------------------------- >> can i attach pcap file for this senario? >> >> >> Sure. Or upload it somewhere and post the link. (There's a file size >> limit, though it's at least a few hundred K.) >> >> Ideally you'd have captures for all the interfaces on the switch and its >> control connection. With synchronized timestamps or as a single capture >> (but done in such a way that interfaces can be differentiated). >> >> -- Murphy >> >> On Mon, May 26, 2014 at 1:55 AM, Murphy McCauley < >> murphy.mccau...@gmail.com> wrote: >> >>> Well, I'm not able to learn anything from that code snippet. I repeat >>> my advice of using Wireshark to watch the traffic on the switch which sends >>> the two packet-ins and try to confirm whether it actually receives the >>> packet twice. >>> >>> -- Murphy >>> >>> On May 25, 2014, at 10:51 AM, farshad tajedin <farshad.taje...@gmail.com> >>> wrote: >>> >>> P.S >>> when i remove last line every thing is ok >>> >>> >>> On Sun, May 25, 2014 at 10:17 PM, farshad tajedin < >>> farshad.taje...@gmail.com> wrote: >>> >>>> sorry this hase better view >>>> >>>> -core.openflow.sendToDPID(int('0002'+self.ToDPIDformat(SelectOne[1]),16),self.add_FlowEntri((SelectOne[2]%(NumOfPod/2))+(NumOfPod/2)+1,str(dstIP),0x800)) >>>> >>>> >>>> -core.openflow.sendToDPID(int('0001'+self.ToDPIDformat(SelectOne[2]),16),self.add_FlowEntri((SelectOne[3]/(NumOfPod/2))+1,str(dstIP),0x800)) >>>> >>>> >>>> -core.openflow.sendToDPID(int('0002'+self.ToDPIDformat(SelectOne[3]),16),self.add_FlowEntri((SelectOne[4]%(NumOfPod/2))+1,str(dstIP),0x800)) >>>> >>>> >>>> -core.openflow.sendToDPID(int('0003'+self.ToDPIDformat(SelectOne[4]),16),self.add_FlowEntri(((int(dstNo)-1)%(NumOfPod/2))+1,str(dstIP),0x800)) >>>> >>>> >>>> >>>> -self.connection.send(self.add_FlowEntri((SelectOne[1]%(NumOfPod/2))+(NumOfPod/2)+1,str(dstIP),0x800)) >>>> >>>> -self.connection.send(self.packetOutMsg((SelectOne[1]%(NumOfPod/2))+(NumOfPod/2)+1,of.buffer_id,of.data)) >>>> >>>> >>>> >>>> On Sun, May 25, 2014 at 10:16 PM, farshad tajedin < >>>> farshad.taje...@gmail.com> wrote: >>>> >>>>> this my code section which make this problem: >>>>> >>>>> >>>>> core.openflow.sendToDPID(int('0002'+self.ToDPIDformat(SelectOne[1]),16),self.add_FlowEntri((SelectOne[2]%(NumOfPod/2))+(NumOfPod/2)+1,str(dstIP),0x800)) >>>>> >>>>> core.openflow.sendToDPID(int('0001'+self.ToDPIDformat(SelectOne[2]),16),self.add_FlowEntri((SelectOne[3]/(NumOfPod/2))+1,str(dstIP),0x800)) >>>>> >>>>> core.openflow.sendToDPID(int('0002'+self.ToDPIDformat(SelectOne[3]),16),self.add_FlowEntri((SelectOne[4]%(NumOfPod/2))+1,str(dstIP),0x800)) >>>>> >>>>> core.openflow.sendToDPID(int('0003'+self.ToDPIDformat(SelectOne[4]),16),self.add_FlowEntri(((int(dstNo)-1)%(NumOfPod/2))+1,str(dstIP),0x800)) >>>>> >>>>> >>>>> >>>>> self.connection.send(self.add_FlowEntri((SelectOne[1]%(NumOfPod/2))+(NumOfPod/2)+1,str(dstIP),0x800)) >>>>> >>>>> self.connection.send(self.packetOutMsg((SelectOne[1]%(NumOfPod/2))+(NumOfPod/2)+1,of.buffer_id,of.data)) >>>>> >>>>> >>>>> >>>>> On Sun, May 25, 2014 at 11:44 AM, farshad tajedin < >>>>> farshad.taje...@gmail.com> wrote: >>>>> >>>>>> yes of curse but not now because i am at my job now and haven't >>>>>> access to source code, i will do this a few hours later. >>>>>> >>>>>> >>>>>> On Sun, May 25, 2014 at 10:07 AM, Murphy McCauley < >>>>>> murphy.mccau...@gmail.com> wrote: >>>>>> >>>>>>> Generally speaking, there's only ever one active connection to a >>>>>>> switch at a time. >>>>>>> >>>>>>> Can you share a minimal version of your code which demonstrates the >>>>>>> issue? >>>>>>> >>>>>>> -- Murphy >>>>>>> >>>>>>> On May 24, 2014, at 10:20 PM, farshad tajedin < >>>>>>> farshad.taje...@gmail.com> wrote: >>>>>>> >>>>>>> as i said before in my controller code i used two connection to e_s1 >>>>>>> sequentially one for installing flow entry and next connection for >>>>>>> sending >>>>>>> packet out message. if connecting to switches done by thread >>>>>>> programming so >>>>>>> these message sending parallel, is these parallel message to one switch >>>>>>> make problem? >>>>>>> >>>>>>> >>>>>>> On Sun, May 25, 2014 at 8:15 AM, Murphy McCauley < >>>>>>> murphy.mccau...@gmail.com> wrote: >>>>>>> >>>>>>>> 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 >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Best Regards >>>>>>> >>>>>>> Farshad Tajedin >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Best Regards >>>>>> >>>>>> Farshad Tajedin >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Best Regards >>>>> >>>>> Farshad Tajedin >>>>> >>>> >>>> >>>> >>>> -- >>>> Best Regards >>>> >>>> Farshad Tajedin >>>> >>> >>> >>> >>> -- >>> Best Regards >>> >>> Farshad Tajedin >>> >>> >>> >> >> >> -- >> Best Regards >> >> Farshad Tajedin >> >> >> >> -- >> Best Regards >> >> Farshad Tajedin >> >> >> > > > -- > Best Regards > > Farshad Tajedin > -- Best Regards Farshad Tajedin
