[pox-dev] help: PacketIn and ConnectionUp event

[k102090 Sarim Javaid Khan]

That's great. Thank you


On 27 April 2014 05:46, Murphy McCauley <murphy.mccauley at gmail.com> wrote:

> I've modified the wiki to try to clarify this.
>
> The PacketIn event is raised in response to an ofp_packet_in message from
> the switch.  The meaning of this is defined in the OpenFlow specification,
> but basically it's what happens when a packet arriving at a switch port
> does not match any table entry, or when the matching table entry includes
> an action to explicitly send the packet to the controller.
>
> The ConnectionUp event is not raised in response to any specific OpenFlow
> message from a switch -- it's raised when a switch connects to the
> controller.  Meaning, for example, that you won't be getting *any* other
> events from a particular switch until you've gotten a ConnectionUp from it.
>
> -- Murphy
>
> On Apr 26, 2014, at 3:09 PM, k102090 Sarim Javaid Khan <k102090 at nu.edu.pk>
> wrote:
>
> > Hello all,
> > Hope you are doing fine.
> >
> > I am new to SDNs and POX development.
> > I have been surfing out the pox wiki and tried to understand the basics
> of pox but I could not understand the difference between the "ConnectionUp"
> and "PacketIn" events in the poxAPI.
> > I searched all over the internet but no answer I got.
> >
> > Please help me out with a basic definition and an illustration if you
> feel easy.
> >
> > Regards,
> > Sarim Javaid Khan
>
>
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